AC repair in Gastonia NC & nearby areas.

(704) 864-0344

AC Repair Service Gastonia NC | GSM Services
Heating & Cooling • Insulation • Crawlspace Services • Mold Removal • Energy Audits • Generators • Air Duct Cleaning • AC Repair & Installation
Heating & Cooling • AC Repair & Install • Insulation • Crawlspace Services • Mold Removal • Energy Audits • Generators • HVAC Duct Cleaning
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Customer Testimonials

See What Your Neighbors Say About Us

Providing Expert Service Since 1927

4.9 Star Rating
on Google

100% Satisfaction Guaranteed

 The technician who came to my home was very corteous and answered all my questions promptly. The work was completed in a timely manner and I am very pleased. Thank you very much! 

Greta C. of Hickory, NC

 I had to reschedule serval times and the GSM staff went out of their way to accomodate my schedule. 

Mr B. of Vale, NC

 We appreciate the overall ethic of the company and getting the work done promptly. Also, we appreciate you coming back and completing work that was found later. 

St. Matthews Reformed Church of Maiden, NC

 I have done business with GSM for a good many years and have always had good service. I can think of no improvements! 

Ruth E. of Lawndale, NC

 I heard about GSM from a past customer and I love having someone who can also change filters and my smoke alarm batteries. 

Sandy C. of Fallston, NC

 The level of proficiency that was displayed by the salesman Jason and the presentation that he gave made our decision. As well ast he way GSM stands by their products and takes caare of customers. 

Darrell P. of Lincolnton, NC

 From the very 1st day all info was up front and honest. Workers were courteous and got the work done in a timely manner. They always cleaned up every night and arrived when they said they would. Greg Paxton was more than helpful and very easy to talk to. 

George C. of Lincolnton, NC

 We were very happy with the service we received. When we have to replace our HVAC, GSM will receive our business. Thanks to both advisore that came out and explained things to us so that we could understand. They also gave us options and did not push any opton on us. They gave us the info and let us make the decision. 

Chris B. of Lincolnton, NC

 I found James to be the kind of tech I would trust in my home alone when I couldn't be there for the service call. 

Eddie L. of Lincolnton, NC

 Excellent service! The technicians are awesome! They were friendly and professional and very efficient. We also want to point out how much we love the pink truck in support of cancer services. 

Randall L. of Fallston, NC

 Excellent service! The technicians are awesome! They were friendly and professional and very efficient. We also want to point out how much we love the pink truck in support of cancer services. 

Randall L. of Fallston, NC

 We have been with GSM for many years. They have always provided us with the best service. I would reccomend them to anyone. 

Walter B. of Fallston, NC

 You do a great job and I am very glad we are connected with GSM. Please keep up the wonderful work. The technicians are always so nice, helpful, and honest. 

Margaret A. of Crouse, NC

 Shawn was the perfect representative for your company and was professional, knowledgeable and very courteous. He kept us informed every step of the way. He explained how the thermostat, complete system and ducting and dampers work. We no longer have rooms that are too hot or cold. The system is also amazingly quiet. 

The Kerns of Cherryville, NC

 Every employee I have had contact with from the ladies on the phone to the service technicians have all been outstanding and are committed to great service. 

Alan and Diane K. of Cherryville, NC

 The deciding factor was the overall experience meeting with your comfort & energy advisor and price. Your price was the best quote we received. Quality and expert service. We have been extremely satisfied with the service that we have received. Competent, knowledgeable, complete experts. Thank you! 

Jennifer P. of Davidson, NC

 The deciding factor was the overall experience meeting with your comfort & energy advisor and price. Your price was the best quote we received. Quality and expert service. We have been extremely satisfied with the service that we have received. Competent, knowledgeable, complete experts. Thank you! 

Jennifer P. of Davidson, NC

 Prompt service and performed all services in a professional manner. I felt like a valued customer. 

Tom R. of Cornelius, NC

 Everything was done exactly as explained. The guys were neat and very professional. It was well worth the cost and am already seeing a difference in the AC running less and we've noticed a big difference in the amount of dust in the house. 

Tony and Linda R. of Forest City, NC

 I am a long time customer and y'all need to stay as you are! 

Sarah H. of High Shoals, NC

 Every service call has ben on time and very clean. My overall experience has been great and I am very pleased with GSM. 

Trixie W. of High Shoals, NC

 We have used GSM for years and we wouldn't use anyone else. They are an honest company with high quality expectations. Would reccomend them to anyone who asks. 

George W. of High Shoals, NC

 Excellent service! I have been a customer for many years. Always call GSM! 

Betty B. of High Shoals, NC

 Service is very good, they're always there when we need them. 

Walter B. of Waco, NC

 I thank you all at GSM Services. I have always had the best experiences and customer service. Everyone at this company is truly excellent. Thank you again! 

Zack C. of Waco, NC

 Very Good and Dependable 

Zack C. of Waco, NC

 I couldn’t ask for any nicer people to do business with. I appreciate the promptness and courtesy showed to me. The sales rep took time to explain everything to me and was very professional. 

Mr. Harrill of Stanley, NC

 The comfort and energy specialist was very informative and answered all my questions that was asked of him. In addition the straight forward pricing was included in the deciding factor in choosing GSM. 

Tom and Brenda F. of Stanley, NC

 I've lived in this house 30+ years. First time my living room and thermostat read the same temperature. "Amazing" very warm. 

Vickie C. of Stanley, NC

 I am very satisfied with your company, from the sales rep to the installers. Everyone was very professional and thorough. Another thing that was very professional was the follow up from the sales rep and his supervisor. I would recommend your company to anyone that needed a new unit or repair of their own existing unit. 

Thomas H. of Shelby, NC

 Thanks for giving me some extra special care while my system was being fixed. Thanks for putting up with my calls. You have been so nice to me, please keep it up. 

Ms. Fowler of Dallas, NC

 GSM has always been there for us! They have always done a good job and have kept us warm in the winter and cool in the summer. We wouldn't ever consider anyone else to do our Heating and Cooling needs. 

Jim & Linda L. of Dallas, NC

 Scott was great, every tech that you have sent out has been great! 

B M. of Dallas, NC

 GSM is always professional and courteous. I always rave about the company on our neighborhoods facebook group. 

Robert D. of Huntersville, NC

 I will be glad to tell others of your company and the friendly people that work for you. GREAT JOB! – Thanks a million!! 

Thomas S. of Bessemer City, NC

 I am enjoying my unit so far. Everything Greg told me would be done, it was done. He left me all the information I need to get in touch if I have any problems. All the workers that put in the unit were very nice men. Everyone who came did the job that they were supposed to do and they cleaned up everything. Great job by everyone. Thanks a lot. 

Gail B. of Bessemer City, NC

 Very pleased with your professional attitude. Everyone was polite and knowledgeable to my concerns and the cookies were good! 

Jim M. of Bessemer City, NC

 Your tech was all that we could ask for. Very pleasant and helpful. We are in our 80's and very careful about who comes to our home. No problems at all. Thank you! 

Gloria L. of Bessemer City, NC

 Everyone was just a pleasure to work with. After some checking I found this to be private owned company and I appreciate people who employ our community citizens. Thanks to the Long family we have growth around us and that makes us more secure in our families lives. 

Susan K. of Bessemer City, NC

 If I know someone needing heat or air I will give them your card. I was very pleased with the work. I had mold in my window and told Jim S. He cleaned the mold and my storm window. He loosened the screws on the storm window to let moisture out. 

Deborah C. of Bessemer City, NC

 To me there is no improvement to be made. The guys are the greatest. I would love to send someone your way. 

Delores W. of Bessemer City, NC

 We appreciate your good quality work. We are well satisfied. 

The Wagstaffs of Mt. Holly, NC

 We couldn’t be happier with all aspects of your company! Thank you ever so much! 

The Browns of Mt. Holly, NC

 Your Comfort Advisor, Mr. Wayne King, was very courteous and took time to answer any questions. Your two technicians who did the installing were very hardworking, very knowledgeable and also courteous. 

Ms. Stroupe of Mt. Holly, NC

 We had a great experience with GSM. Everyone we spoke to from the sales team to the installation team, was extremely professional, knowledgeable, and courteous. I would highly recommend GSM to others. 

Kris V. of Mt. Holly, NC

 I can "Feel" the results after my crawl space enclosure. It gives my home more protection and is more energy efficient. I also see the results in my power bill charge each month. Thank you! 

Barry F. of Concord, NC

 Just wanted you to know how wonderful we think GSM is! Matt labored for two days on a significant problem he encountered with our heat pump and furnace. Robert came the second day to help. It was a difficult problem, but they perservered and solved it. More recently, we had a problem when trying to switch over from AC to heat. Charlie came out, solved the problem and set our thermostat. In both instances, they served you well and we wanted you to know that you have the highest quality people working for you- they reflect you well! 

Jim A. of Concord, NC

 Your thoughtfulness takes the most simple sentiments and turns them into gestures of kindness and gratitude. Only you could have known what we needed, thanks for helping us know exactly what we needed. GSM has brought a "Smile" to our face! The professionalism, patience and interest everyone had to make our satisfaction 100% was AWESOME!! Our "Thank you" seems so small compared to all you've done. Thank you. 

Gail J. of Kings Mountain, NC

 Everyone worked in a very professional and friendly manner. Installation of new unit and removal of old unit was done in a timely and clean manner. Any and all questions were answered. Great company! 

Jimmy W. of Kings Mountain, NC

 Great experience! On time, good job on the installation and clean up. 

Tom R. of Kings Mountain, NC

 We recently purchased a heating and cooling system from your company GSM. We were very impressed with the whole crew. We would like to give a special thanks to Owen and Taylor for the way they performed "OUTSTANDING". Have told many people about GSM and our great service. 

William W. of Kings Mountain, NC

 Your thoughtfulness takes the most simple sentiments and turns them into gestures of kindness and gratitude. Only you could have known what Bryan and myself needed. Thanks for helping to know exactly what we needed. GSM has brought a "smile" to our face! The professionalism, patience and interest everyone had to make our satisfaction 100% was AWESOME!! Our "thank you" seems so small compared to all you've done. 

Bryan & Gail J. of Kings Mountain, NC

 We have been treated like we were the only ones your employees had. They are wonderful- they take care of our unit. They are the same every time they come. 

William W. of Kings Mountain, NC

 From office to service has always been excellent in every way. Thank you! 

Jimmy W. of Kings Mountain, NC

 This was our 3rd project at my home. I would not consider another company. GSM is the best! Thank you GSM for another successful project. I am already seeing less energy use and much improved evenness in my household climate. Your folks are amazing in professionalism, courteousness and state of the art knowledge of technical equipment. Thanks so much! Jim and Wayne are the best! 

Ellen B. of Lowell, NC

 Zach was a very respectful gentleman - "yes maam, yes maam", put his shoe covers on & off each time he went in or out of my house. I was very pleased with his clean up he did when he was finished. PS. You can't get any better than that. Much happier now that I have someone I can depend on!! Cleaner too! 

Betty B. of Lowell, NC

 My father used GSM for his company. I am totally satisfied and have peace of mind using GSM Services. 

Jackie K. of Earl, NC

 Best customer service I've received anywhere in the past 20 years! I've noticed that with current times, customer service seems to be a service that companies don't seem to care about anymore. However, that is not the case with GSM! They are top notch! 

Kim M. of Earl, NC

 The men were courteous and informative. The telephone and customer service staff were helpful and kind. Thank you all for a wonderful experience! 

Hazel M. of Earl, NC

 The service we received from GSM was great! We were not talked into buying anything we didn't need, and we had all of our questions answered. I really appreciated their honestly and cleanliness. 

Sue S. of Earl, NC

 Robert is a very nice representative of your company. He is professional but always asked how I'm doing! 

j C. of Grover, NC

 Fantastic job. Very professional in all aspects. Very informative as to ways to correct the problem. Never pushy! 

Steve H. of Gastonia, NC

 I appreciate the options I was given – options to either repair my old system or replace it, which I chose. Then I had several choices of systems and warranties. Also, I appreciate the ease of financing this unforeseen expense. 

Joie A. of Gastonia, NC

 The technician was very clean cut, great attitude, extemely helpful and very knowledgeable about his work. He has been to my home before. He is one of our nicest technicians we have had. 

Robert and Sylvia N. of Gastonia, NC

 James was great. Gave good advice and was prompt and courteous. I will sign up again for program. Great value and I know who to call in case of a zombie appololyps or when my units go out I know who to trust. 

Tannessa O. of Gastonia, NC

 They are always excellent! Prompt fast service they always are careful not to track in my home- Friendly nice, even nice to pets. Best of all they keep our state of art heating system we bought from from them in top shape! 

Judy B. of Gastonia, NC

 GSM always goes above and beyond the industry norm. I have witnessed it on multiple occasions. Customer satisfaction is job one. 

Mark B. of Gastonia, NC

 You have been giving excellent customer service every time I call. I can't thank you enough for letting me bill the last service call there are still good people with a heart and you are the best! Thank you! 

Helen E. of Gastonia, NC

 Wayne King's presentation, knowledge and professionalism coupled with the matching price on another quote was the reason we chose GSM Services. Sean and Jason installed my system. I was unbelievably impressed with their professionalism, courteousness and knowledge. They worked hard and completed the installation in fantastic time. 

Edward K. of Gastonia, NC

 Good Morning, Mrs. Oakley called in this morning to say how helpful , awesome AND ALSO sweet Thim was this weekend. She said he helped her find the problem that was going on at her home even if it wasn’t her heating system. She said she was scared to death her home was going to burn down BUT Thim made her feel better about the situation. She called in Thursday to cancel her services agreement - Friday, she called us out to her home because she thought something was wrong with her system. The AWESOME service Thim provided made her call back in today and say she now wants to keep her service agreement. She said she will find some way in her budget to make her ESA payment every month. Awesome Job Thim! 

B O. of Gastonia, NC

 The service I had from Dan Deneve was great! Very knowledgeable, very professional. The nexy time I need service, I hope I get Dan for the service advisor! 

D H. of Gastonia, NC

 Great job to whole staff! Jason and Owen did exceptional job "the first time" and did it fast in crawl space that is less than spacious. The sales man also did a great job explaining the system he recommended. For the first time we now have true comfort in our home and equal heating and cooling in every room in the house. Everyone we dealt with were pleasant and took time to answer all questions. 

Paul D. of Gastonia, NC

 Our experience has alwasy been the best! 

Joe P. of Gastonia, NC

 your services with us have always been great! Matthew has been so nice and efficient. Thank you. 

Linda M. of Gastonia, NC

 Over the years, Gastonia Sheet Metal has provided excellent quality and service on all the jobs we have done with them; from large commercial jobs to smaller residential jobs. The team approach to service is one reason we keep coming back. 

The F. of North Carolina, NC

 I felt after 5 quotes (some of which had me take notes they were so unorganized) that Gastonia Sheet Metal offered the best long term service and seemed most efficient. The service folks who installed were awesome - they really worked long & hard and were so nice and so careful. 

The F. of North Carolina, NC

 The sales representative was professional, polite and interested in our needs, very knowledgeable, easy to talk with. The installers were hard workers and polite also. They too answered questions. We are very pleased. Thank you. 

The Bollingers of Gastonia, NC

 Everyone we dealt with concerning the options, our choices of units, explanation of operating, installation and service was highly knowledgeable and professional. During the entire process we felt we were treated with honesty and integrity. 

Mr. & Mrs. Fogle of Gastonia, NC

 The whole experience was quite satisfactory. Wayne was thorough in prepared follow up. Shawn Messer found the re-routing on supply duct. Excellent follow up. 

Mr. Forde of Gastonia, NC

 After speaking to Wayne for 15 minutes we knew that we wanted to work with GSM. He was honest, knowledgeable, and friendly. The whole experience with everyone with GSM has been a pleasure. We will refer this company and definately continue doing business ourselves. 

Mr. and Mrs. G. of Gastonia, NC

 We chose GSM Services because of their reputation and past service experience. Jason was extremely polite, professional and informative. He represents the company well. I can't say enough compliments to Sean and the gentlemen whith whom he worked on our job. Absolutely top notch! I just cannot imagine a better experience. 

Rick B. of Gastonia, NC

 I was leaning towrad another company because of my issues with my heat pump, but Jason reassured me that I would have no problems.I'm really glad I found the right person to talk to about my cooling issues, and he did what he said he was going to do. The guys that did the work did a great job. They didn't leave a mess behind. Did the work in one day, I was really impressed! Thank you! 

Roy J. of Gastonia, NC

 Jason Haggins did an excellent job of explaining what new units we needed, and their cost. We are truly more than satisfied with their work installing our new units. Dealing with a quality company such as yours is such a delightful experience. Having your trust is important. Thank you! 

Joann T. of Gastonia, NC

 Kelly and the installers did an excellent job. It is a pleasure to see competent people doing a fine job. 

Jim M. of Gastonia, NC

 Working in the attic on a hot day in August, these people stuck with it and stripped out the old insulation that made me sick, allowed me time to complete new electrical work and came back a week later to blow in new insulation. Great work! The house is much easier to cool and the cost of heating and cooling was cut by half. The work will pay for itself in energy savings. 

Max G. of Gastonia, NC

 The process of changing our air/heating systems was done so efficiently from the beginning to the last result. Our team of workers led by Gred and Shawn gave their very best in all areas of expertise. Each day they updated us as to their schedule and accomplishments in such a courteous manner. 

William T. of Gastonia, NC

 all my requirements were met. My recent bill has already shown a difference. The system runs so smoothly and quickly. I believe it adds value to the home for resale. I'm very pleased. the advisor and technicians were excellent. 

Cynthia R. of Gastonia, NC

 Our electric bill was averaging $550.00 per month for well over 2 years. After speaking with various friends with similar size homes, they said their bills were about $350 per month. We were perplexed and concerned. I searched for a company that specializes in home energy evaluations to help us figure out our astronomical utility bill. As we have several large aquariums in out home, my original thought was all the electricity the tanks were pulling. We scheduled GSM to come in mid January for an evaluation. Mr. Smith from GSM spend hours in our home inspecting and evaluating our "leaky" house. Well his pictures were the proof. All the cold air in the winter that is up in our attic, was leaking into our living space because numerous ducts and venting spaces were not sealed properly. The same in the summer.... Our cool air from an overworked air conditioner was leaking up to the hot attic. Mr. Smith showed us how additional insulation, duct dealing and air sealing would make a difference for us financially as well as more comfortable in our living space. We decided it certainly made since and even if we could save an additional $100.00 per month, that would add up over time. A month after our install..... the proof is astounding. We are no longer in sweat shirts or jackets and the heat isn't running full blast. Our son's room is warmer at night, so no need for his 4 blankets. I actually walked around last week without socks, because the house was comfortable. Our heat is staying inside!!! And the happiest part..... Look at this photo. 

Deyne M. of Gastonia, NC

 Everyone we had contact with was very courteous and helpful. Kelly's no-pressure salesmanship won us over! He was helpful, without judging us. Owen explained how our new thermostat worked and made sure we understood. Very good experience!! 

Kerry F. of Gastonia, NC

 Mr. Ripple explained to us about the air conditioning and what type we were getting. He explained it very well. Everyone did an excellent job. 

Sandra T. of Gastonia, NC

 Over the years I have been very pleased with the service I have been getting. Can't think of anthing less than very good. Thank you. 

Betty H. of Gastonia, NC

 There is not enough room on this page for me to tell you how much I think your company is worth. I have never seen people do their job as well as your people did. They not only were courteous, not only knew their job well, but answered all questions, (and I asked a lot!) They covered everything up and took care as not to make a mess anywhere. I have never seen workmen do their jobs (hard work) and still take time to answer any questions with a smile! There was even a real young little fellow who must have been raised right - because he was nice & polite. When I asked him about stuff he was doing - he explained what they were going to do in detail. They even wore "booties." I wish all workmen were this good! They cleaned up outside very well, and there was a mess of stuff that had to come outside because they were replacing my entire duct work. You should be proud of those guys that are representing your company. I wonder if all of your crew is this nice? I also wish I had called your company 20 years ago to put in my heating unit. If it goes - before I do - I will be calling your company to replace it. I am sure because of the good job your people did, my heating & air conditioning bill will be less! Thanks, for having such a good crew. 

Betty L. of Gastonia, NC

 There is not enough room on this page for me to tell you how much I think your company is worth. I have never seen people do their job as well as your people did. They not only were courteous, not only knew their job well, but answered all questions, (and I asked a lot!) They covered everything up and took care as not to make a mess anywhere. I have never seen workmen do their jobs (hard work) and still take time to answer any questions with a smile! There was even a real young little fellow who must have been raised right - because he was nice & polite. When I asked him about stuff he was doing - he explained what they were going to do in detail. They even wore "booties." I wish all workmen were this good! They cleaned up outside very well, and there was a mess of stuff that had to come outside because they were replacing my entire duct work. You should be proud of those guys that are representing your company. I wonder if all of your crew is this nice? I also wish I had called your company 20 years ago to put in my heating unit. If it goes - before I do - I will be calling your company to replace it. I am sure because of the good job your people did, my heating & air conditioning bill will be less! Thanks, for having such a good crew. 

Betty L. of Gastonia, NC

 The service guys were very professional and respectful of times involved. Always left work areas clean at the end of each day. They stayed until the job was done - not leaving to go to another job. Would not hesitate to use GSM again. 

Luther G. of Gastonia, NC

 Not possible to improve your service. Thank you for the care of your customers - We are always so very pleased. 

Joe & Susan K. of Gastonia, NC

 Always a great experience. I love that I get an email when the technician is on the way that includes their name and a picture so I know who to expect. 

Crystal U. of Gastonia, NC

 I recently had my attic fully insulated with GSM. I am so grateful for the crew and their ability to do quality work at a competitive price. The work was done to perfection and the crew was friendly, courteous, and diligent about cleaning up after themselves. The house operates more efficiently than ever and the difference is incredible. Thank you GSM for providing good old-fashion quality work, integrity, honesty and friendly service. 

John M. of Gastonia, NC

 Zack was right on time, he was very polite and explained what he was doing as he progressed with the system check. He reviewed what he had done and made a recommendation about a system improvement. I was very pleased with his service. 

James H. of Gastonia, NC

 I admire the fact that your employees are obviously proud of your company's reputation and consistently go above and beyond to maintain the trust of your customers. Jim Smith was wonderful to work with in making decisions about our purchase. He addressed every question and concern, and there were many! Danny Painter, Shane and Craig all took time to speak with us during the installation. They were very courteous, friendly and professional. Danny was especially helpful in keeping us informed on the progress and explaining the new system and control panel. During the sales process, the installation and after everything was complete, Sean Driscoll was the name I heard over and over again. When speaking with Sean, the reason became very clear. This guy is smart, articulate, professional, caring... the list goes on. I'll just say that he represents the very highest standard of a customer-facing employee. Amy is always friendly, helpful, reliable and a very pleasant voice for GSM. We have every bit of confidence that when we all with a question or concern she will be sure it's addressed promptly. Steven Long came by to check on the installation. It was a pleasure seeing and talking with him. We always appreciate his commitment to excellence which is certainly reflected in GSM's products, services and most importantly, in their employees. We've been GSM customers for over 20 years. During that time, we've learned, there may be cheaper options out there but there is no better value. 

Jack S. of Gastonia, NC

 We wanted a company that we could depend on when we needed them and not give us the run around. That comes down to dependability. 

James M. of Gastonia, NC

 I was referred to GSM in 2011 by a technician of a previous air and heating company I was dealing with. The company he was working with was about to shut down, so he recommended that I try GSM. I called GSM, and a technician came out to inspect my unit. The technician informed me that I needed a new furnace. He went over everything with me such as pricing, and explained all that he was going to do when installing my new furnace. He answered all my questions and concerns. GSM is the best! They are punctual, polite, respectful, kind, and will explain everything in detail. The most exciting thing is the low monthly fee they charge for maintenance. I recommend GSM to everyone. You will not be disappointed. 

Ana S. of Gastonia, NC

 I really don't think GSM Service team needs any improvement. The tech was very knowledgeable, curtious and polite. Thank you for you help. Appreciate you GSM team. 

Rose M. of Gastonia, NC

 It is not possible to improve. The Long's have a talent for hiring and training people. We so appreciat this company, it's people and what it does... especially Jason, who helps us better understand our heating and cooling system. Thanks so much! 

Joe K. of Gastonia, NC

 GSM has always been flexible and diligent to accomplish my needs. Thanks a lot for all you do. All your staff treats people like family. 

Laura A. of Gastonia, NC

 The only company in the area that I felt comfortable calling was GSM. I just felt that they more than anyone else would be able to offer reasonable solutions for our issues. Jason Haggins proved to be “The Man”. I am so glad my one call brought the results we sought. 

David B. of Gastonia, NC

 As expected from the preliminary meetings with Greg Paxton, all service was done with quality and expertise. Your crew was friendly, knowledgeable, and interested in our needs. Sean explained not only the product installed but the working and efficiency of our new units. He answered questions and gave me “training” in operating our system. They were very conscious of keeping the work area neat and clean - inside and out. I believe the maintenance will be top quality annually as assured by Greg at our final meeting. 

William T. of Gastonia, NC

 I appreciated the speed of the installation and courtesy the installers showed while at my home. A new unit was installed when promised and my old unit hauled away. A recheck was scheduled to ensure my satisfaction. I most surely will recommend GSM to anyone with air conditioning or heating needs. 

Eric T. of Gastonia, NC

 Everyone with GSM has been very pleasant and professinal and timely and kind. The thank you cookies were a nice touch and surprise too. We have and will continue to tell others good things about GSM. 

Bert P. of Gastonia, NC

 I am very pleased with the service provided by Mr. Wade. I am a 77 year old senior living alone, and I felt very safe when Mr. Wade stopped by for the service call to my home. 

Ann B. of Gastonia, NC

 Everyone at GSM is always great. I don't know how it could be improved. We are always pleased. 

Joe P. of Gastonia, NC

 Was really pleased with the emergency service that I was provided. Matthew showd up in about 45 minutes after I made the call. He was exceptionally professional & repaired my heat pump quickly! It only turned out to be a bad wire, but he took the time to completely evaluate the heat pump. Even gave me some advice on heat pums & didn't mind showing me what he was doing when I tagged along because I wanted to learn! I signed up for the service contract as well! Very pleased. Thanks!! 

Tim I. of Gastonia, NC

 Always a human on the phone which is awesome. Your techs are helpful, knowledgeable, and personalble. Hard workers and one of your company's best assets! GSM rocks! 

Karen R. of Gastonia, NC

 I have your yearly maintenance. The guys who come out are very helpful, informative, and polite. I have always been impressed by their efforts. 

Shirley T. of Gastonia, NC

 After making a couple visits. I asked that we get a new thermostat. When the service manager came out he put one up and didn't charge for the visit. 

Betty L. of Gastonia, NC

 I have to say, GSM does stand by their work to make sure the customer is happy and satisfied with their work. I also appreciate the hands on approach from Jim S. and the owner Steven Long when I had some issues. This is a great company. I'm glad I chose it! 

Diane H. of Gastonia, NC

 My father-in-law used your company back in the 1930's and always spoke very well of the gentleman who ran the company at that time who made a metal top for his Ford Model A. He was so in awe of the man for being able to figure it all out. I have had your maintenance program for about 10 years and Jim C. was the first one to come and change filters, etc. Then Jason and several others over the years. The latest experience Kelly worked with me on deciding it was time for a new heating and air system. It was installed by Danny and Jacob. All of them were able to answer my questions and make me feel good about which system I chose. I have referred you to several people ove the years and will continue to do so. Your ladies in the office are very, very kind and friendly - in fact I have never had anything but excellent service from anyone I have come in contact with at GSM. Thank you for being so dependable! 

Bobbie L. of Gastonia, NC

 Brandon worked until 9:30 pm one evening when we were having trouble with our AC. He was courteous and eager to please. It was clear he enjoys working for GSM and his attitude reflects that. 

Anna K. of Gastonia, NC

 There are no improvements necessary. I've been with your company several years. The technicians are so pleasant and informative. 

Jessica T. of Gastonia, NC

 Was a very good experience 

Henry B. of Gastonia, NC

 Always been great with servicing my system and great people! I always recommend GSM, my new system works great, and I love the Smart App Thermostat. SAVES on the electric bill and energy efficient. Always a quick response when needed. 

Jed W. of McAdenville, NC

 Your Comfort Advisor was very thorough, courteous and knowledgeable. His professionalism was the deciding factor for us. 

The Tuckers of Cramerton, NC

 I am so far very pleased. The biggest take away of my experience was I got what was explained: no less, no more. I appreciated that honesty and integrity were a foremost in all of the arrangements. Continue to strive to treat your customers like this. THere is nothing worse than to feel like you had a used car dealer when making such huge purchases. Thank you! 

Karen W. of Cramerton, NC

 This was just the best experience for me. From the first visit by Jim S. - scheduling a time - meeting Wayne K. and Steven Long - to Stoney and his team until the second day when all was done was just a wonderful experience. I had questions and they were all answered in a timely fashion and professional attitude! Thank you! 

Susan N. of Cramerton, NC

 Good Morning, Mrs. Steiner called in to say Scott Ramsey was at her home on 10/18/2016. She said he was very Professional, Personable, & Nice. She is very thankful we hire people like this. She said he deserves an extra coffee and doughnut one of these days. Thought I would let you know. Thanks. 

R F. of Cramerton, NC

 We are most satisfied & pleased customers of GSM & have been for 18 years. We are particularly impressed with Charlie McGinnas who has serviced us for many years. We recommend GSM to our friends & neighbors. 

Dave C. of Cramerton, NC

 The cleaning and repair to the ducts in my home have vastly improved the air quality in my home. The system was 40 years old, very dusty air. Now the air is very much improved. Thank you for the hard work that it took to complete the job. Shawn did a wonderful job, very kind, great patience and kept us informed as job progressed – always available for a phone call. 

The Walkers of Belmont, NC

 The new work has just been completed and system so far is doing great! The crew working on my job did a great job. They certainly are welcome to work when I complete the other half of my job. 

Mr. Aaron of Belmont, NC

 A great experience from start to finish. Jason, Owen, and Taylor all did a great job. Also impressed that Steve cared enough about his company to check on progress. Thank you. 

Allen P. of Belmont, NC

 Very pleased with the professionalism of technicians and prompt response time. Follow up visit with Kelly was also a plus that the company stands by their products and work. I am pleased we chose to go with GSM for replacement of our HVAC system. 

William & Jacqueline E. of Belmont, NC

 We were highly pleased with each person involved. We know GSM stands behind their service and their product. Pricing was not what we based our decision on, it was based on our past experience with GSM and their excellent reputation. 

Robert & Melanie J. of Belmont, NC

 I love the emails with the picture of the tech that is coming. Great peace of mind knowing ahead of time. All the guys are super friendly and the office staff is always extremely helpful. 

Natalie T. of Belmont, NC

 Thim went above and beyond on the initial service call, even trying to find heaters for us to use. The sales person that came out made us feel confident in our decision. The service men that installed our unit were so nice and polite and we felt comfortable with them in our home. Overall - a scary situation turned out to be a pleasant experience! 

Tommy R. of Belmont, NC

 We recieved a note from one of our customers and we really appreciate the great review!! 

Ms. H. of Belmont, NC

 Dramatic improvement in cooling effiency of my "man cave". So glad I went with the thermal shield and foam board insulation 

Mr. L. of Locust, NC

 I have never experienced service like this before! I am very happy with all the crazy work these poor guys had to do! My house was a huge mess and GSM was the only company that did not run for the hills! Thank you all so much. God bless! :) 

D N. of Charlotte, NC

 Nicky M, Heather H, Bailey J and Sarah P - I have talked with all these women. They are my first contact with no matter what I need and they all are extremely courteous, helpful, efficient. Your service people may be the face of the company but these ladies are the voice. They are a customers first contact and they are excellent. You take great care of us. We have a call center at my office - I'll say they were 1/2 as good as your group. These are outstanding ladies and a wonderful asset to your company. They are the people who keep you going. Thank you for the oppurtunity to show my appreciation not only for my serviceman, Mike, but for these ladies too. 10 stars for you all. 

Carol B. of Charlotte, NC

 We were very happy with the installation and service, even when I had to call and ask if they could come glue the bottom. THey came right back and addressed the issue to my satisfaction. Thank you again for your wonderful service and knowledge of product. 

Trisha C. of Charlotte, NC

 We are so happy that we found you guys. We are happy and comfortable with our new system. We also like that you guys really care about your customers. Thank you! 

The Whites of Charlotte, NC

 The men who installed the air conditioner and furnace were very neat and professional. Your office was helpful throughout the process and answered my many questions and requests. Wayne knows his stuff and was able to get the AC installed quickly! 

Ms. Poole of Charlotte, NC

 I can't say enough about how professional and thorough the service Wayne and his crew performed. They were timely, considerate and all about customer service. I can't wait to get my next bill but we already notice our home being more comfortable and the system running less! 

Mr. and Mrs. H. of Charlotte, NC

 I will refer your company, in fact I already have to several people and noticed your service was used by a neighbor across the street from my home. I would really like to thank your company for doing such a fine job. You worked so very hard and steady making sure that all work was done and cleaned up, just so very professionally well done! Thanks so much! 

Mary M. of Charlotte, NC

 GSM has installed new systems in our home and rental property. Their performance has always been very professional and accommodating. Jason is very knowledgeable and polite. 

Gail S. of Charlotte, NC

 Dear Sir/Madam, I wish to write you with an offer of thanks and praise for your service team who recently helped my mother and I resolve an issue with our house crawl space. We are currently attempting to sell our house and are planning to relocate to a retirement community so mom can more easily get about (she suffers from arthritis and cannot easily climb stairs). We lost our last offer to purchase due to what a house inspector claimed was "excessive structural damage" due to water and other issues possibly related to the house's air conditioning system. I failed to accept such a preposterous and untrue statement. However in order to satisfy my real estate agent's requests, I visited your office and spoke with Shawn Messer, your residential sales team leader. He graciously listened to my case and brought in a team of technicians to my house the following day. They went under the house and inspected every pertinent detail. The end result was that the house inspector was indeed wrong in his assessment. GSM provided an official letter of their own findings along with 16 photos to back up their observations. Even though we have not been able to sell our home just yet, we now have sufficient proof that I have provided to my agent as well as MLS to cover any concerns regarding our house's crawl space. I want to thank not only Shawn but Wayne King and others who were involved in assisting us. GSM went well above and beyond the call of duty to help us on short notice. Mom and I appreciate the professionalism and courtesy provided to us in this matter. Kind Regards 

Sarah B. of Charlotte, NC

 We were very impressed with Jim. The time he took to answer questions, he did a thorough job inspecting the home. We had no doubts after he came out. 

David & Joy N. of Charlotte, NC

 Communication by phone & E-Mail was very timely. Mr. Wayne King is good at explaning what needs to be done to correct my problems. Very informative as to what will be done to fix my housing problems. In 2+ hours, my hoome became livable again. 2+ hours it took to get the job done. 

Paulette G. of Charlotte, NC

 Jim S. did a thorough analysis of our insulation needs and presented his findings to us in an understandable fashion. At our request, he gave this presentaiton a second time. After Stoney D. and his crew completed our project, Jim S. returned for a quality review. We are very happy with the work done by GSM and it's staff. Everyone involved was knowledgeable and professional. 

Steve D. of Charlotte, NC

 Jim made me fell very comfortable and knew the product very well. Overall very content with the work and looking forward to lower electric bill and less dusting. Great team!! 

Maritza S. of Charlotte, NC

 Jim was prompt, thorough and did a great job answering questions. Installers were very interactive and gave periodic updates and detailed explanations. 

Bill B. of Charlotte, NC

 We are extremely pleased with all aspects of our HVAC and insulation installation experience. Everyone we have dealt with from the salesman, technicions, and office staff have been polite, professional, and knowledgeable. GSM is a great company to deal with! 

Deborah P. of Charlotte, NC

 Thank you so much for your quality of work, quality of workers - simply - Your quality of work! 

June P. of Midland, NC

 We always expect good work from GSM. They never let us down. We are very satisfied! 

Judy S. of Bowling Green, SC

 Our experiene was perfect. The careful and accomidating techs are an attribute to the company. 

John J. of Blacksburg, SC

 Very professional – job completed on time and as stated. Very courteous. 

The Dulongs of Lake Wylie, SC

 The installation team was top notch. Professional, courteous, thorough, and always kept me informed. Great job, guys! 

Ron M. of Lake Wylie, SC

 We were pleased with the service we got from the first call, to the complete job. We appreciate the job that was done, and thank you for all the help we got. 

Samuel & Nettie L. of Lake Wylie, SC

 I have always enjoyed each and every staff member. You do an excellent job-giving us options to choose from. We appreciate that. 

Dr. C. of Lake Wylie, SC

 Shaun Jay and Greg Paxton are top notch tech! You at GSM truly have a great foundation of technicians and sales men. Very professional and were very good to work with. Also, the ladies in the office have been a pleasure to communicate with; they answered all my questions professionally. Thank you GSM team! 

Paul W. of Clover, SC

 Truly happy with GSM. From the start GSM sent out an appraiser who took his time and helped work out a plan for me and my budget. GSM is very flexible with the time I needed for an appointment. 

Crystal B. of Clover, SC

 They are prompt, they clean up their miss, you can depend on them and they are always on time. Keep up the good work. 

Marsha B. of Clover, SC

 Wanted to wait before making a statement about installation between summer and winter electric bill was delighted with both heat and cool and all areas of work performed. 

Parks G. of Clover, SC

 Dependable, on time, courteous. cleaned up each day, left no trash. 

Pastor M. of Clover, SC

 The service was great. The service guys for the heating and air conditioning was very generous. 

Cynthia B. of Pineville, NC

 Once again, very pleased with our experience with GSM. The company is very "customer friendly" and the job is not finished until everything is perfect. They aim to please and they do! 

Dr. Stuart & Erin W. of Matthews, NC

 Once again, very pleased with our experience with GSM. The company is very "customer friendly" and the job is not finished until everything is perfect. They aim to please and they do! 

Dr. Stuart & Erin W. of Matthews, NC

 Great people to work with, they know what they are doing, explained the whole process in stages, easy to understand. I didn't realize the complexity of the job. Neat appearance, trucks look great, the crew was really nice also, will recommend your company to anyone. Also your company was not pushy which I dislike. Steven Grant and Taylor Brewer were very helpful and answered all questions. 

Richard Z. of Matthews, NC

 We are new in the area and found GSM through Duke Energy. The tech came on time, got the job done efficiently and to our satisfaction. Thank you! 

Shirley R. of Weddington, NC

 Jason is always very courteous and polite, and wastes no time in getting right to work. I always feel that everything is o.k. after his checkup of our system. 

Peggy L. of Smyrna, SC

 We've been impressed with the professionalism of the GSM staff from the beginning. They are farm more courteous, neat, and positive than other HVAC companies we've encountered in the past. Our Comfort Advisor has gone above and beyond to help us out and make sure everything is working like it should. 

Emily S. of Smyrna, SC

 My experience with all the personnel was positive. I was impressed by the Google Reviews and testimonials. My energy evaluator was a consummate professional and gentleman. The evaluation,work proposal and agreement went well. My only concern was that the work crew didn't seem to be familiar with the installation process of one particular product they were installing. When I called and asked my original energy consultant to check the installation of the product, he was honest and upfront and said they didn't install the product in the proper way. He had another crew come out and make adjustments in the installation of the product. In the end, everything was fixed and handled in a professional manner. I appreciate the attentiveness and prompt response from all involved. I'm a little confused on why the 1st crew was not familiar with that particular product installation. I would consider using again primarily based on my energy evaluator,Richt, and his honesty,respect, and response to my concerns. 

G W. of Fort Mill, NC

 I personally can't think of anything! Thanks- *James Lewis is the Best!! 

Ruth E. of Tega Cay, SC

 GSM did a terrific job at my house. I am very pleased with the results and have quickly noticed the difference with the heating of my old house. GSM will definitely be used for my HVAC needs in the future also. 

Simon S. of York, SC

 I already referred you to my neighbor. She has been a customer ever since. 

Jeffery E. of York, SC

 GSM did a terrific job at my house. I am very pleased with the results and have quickly noticed the difference with the heating of my old house. GSM will definitely by used for my HVAC needs in the future. 

Simon & Ellen S. of York, NC

 The service from start to finish was excellent. We were very impressed with the entire experience! 

Nancy R. of Marvin, NC

 GSM does work for us, our son, my mother and many of our friends. You guys are professional, informative, courteous and respectful of our home. We are very comfortable having you guys work in our home. 

The C. of North Carolina, NC

 I had researched the product over the internet and was very impressed by how your rep. presented and explained to me what I needed and what would be more cost effective. GSM seems to care about the customer and I would gladly recommend you guys to anyone. 

Ms. D. of North Carolina, NC

 I was very impressed with the quality of work on an overall basis. Also, I really like the fact that everyone I spoke to was very knowledgeable about products and services. I mostly spoke with the Comfort Adviser who was very helpful with the time frame to get the job done. Thanks for everything. 

The M. of North Carolina, NC

 Along with your quote, I received three others. You were, by far, the best overall proposal. Additionally, dealing with your Comfort Adviser was a very good experience. With all the other quotes, I felt pressure to make a decision quickly and they immediately told me that certain systems would meet the tax credit criteria. Your Salesperson was very patient and instructed me that it would be best to consult a tax professional regarding the credit. This further eased my mind that I was making the right decision. 

Mr. F. of North Carolina, NC

 You guys were all very friendly and answered all of our questions. There was one very minor issue with the installation, but you guys returned ASAP and got it solved. You helped us also to get rebates from the manufacturer and the power company. Great job! 

The F. of North Carolina, NC

 We just had new windows installed within the last year that didn't seem to make any difference. GSM Services (DES Charlotte) came in, performed the testing and made upgrades that made an unbelievable difference. Our utility costs are down and we're now comfortable in an area of our house that has always been a problem. We would recommend Dr. Energy Saver to anyone! 

The J. of North Carolina, NC

 The staff I've met have all been so informative and helpful...from the first technician who came to check our old A/C to the Comfort Adviser (very polite and well informed) to the two young men who installed the system (hard workers & polite). Thanks for a great job! 

The P. of North Carolina, NC

 We want to say thank you for giving the kids back their FROG (front room over garage) during the summer months. We built our home in 2001. So you would have expected everything to be tight as it relates to Energy Savings and Comfort. During the hotter summer months, the bonus room over the garage was always warmer than the rest of our house. The kids always complained about the comfort level. During our whole home energy audit, you discovered two exterior knee walls were improperly sealed and insulated. The repairs were made and over the last three weeks with outside temperatures in the mid-90's the room is PERFECT. No more hot FROG. The kids and I thank you for giving us back or FROG during the summer months. 

Jill F. of North Carolina, NC

 I liked the fact that HVAC, duct and insulation could be performed by the same company. I really appreciate Kelly during this entire process. He did an outstanding job representing your compand and representing me from start to finish. A big thanks for getting system installed in two days. It was nice to have a comfortable house for a change. I look forward to many years of service from my new system. I'm also looking forward to a long relationship with GSM. So far I only have great things to say after a great initial experience. 

Dan C. of Mt. Holly, NC

 I was a customer for many years. I no longer have a maintenance agreement because I moved to a new constructed home. I'll treasure all the years that I did business with your company. It was a blessing. Your staff is superb. I've never had a bad experience with your company. Thanks for all the many years that you serviced and installed my heating and air unit. It was a pleasure doing business with such a fine establishment. 

Jean C. of Mt. Holly, NC

 My husband said you were the best! The tech calls first - always gets the job done, explains the problem and solution. Very friendly and pleasant to talk to - like making new friends. 

Lorraine D. of Gastonia, NC

 Service was great. 

Christopher of King, NC

 As a brand new customer, everything has been top-notch and I have been pleased with the service. Thanks to Cole for his excellent customer service! 

Janice of Hickory, NC

 We found you all through Google. The guys showed up just like they said they would and had our air conditioning running within almost minutes. We are super happy with the service and the way everything was explained to us. 

Donald of Newton, NC

 I heard about GSM through my daughter, and I am very pleased with the service I receive. I would recommend them to anyone who asks. 

Joyce of Maiden, NC

 GSM Services is always prompt and courteous. They do everything I need them to do and I will continue to use them. 

Shirley of Maiden, NC

 The techs are extremely meticulous 

Gayle of Vale, NC

 Great service at all three of our homes and businesses 

Steve of Mooresville, NC

 He answered all of my questions professionally and in a way I could understand. 

Amy of Denver, NC

 Zack was courteous and professional and gave us a clear understanding of the system, and service options and recommendations. Very thorough and pleasant to work with. 

Phil of Lincolnton, NC

 Always receive professional service and service person is very friendly and considerate of our needs. 

George of Lincolnton, NC

 The installers and technicians are wonderful! I couldn't ask for better. I trust them to do what's right for my needs! 

Pat of Fallston, NC

 The installers and technicians are wonderful! I couldn't ask for better. I trust them to do what's right for my needs! 

Pat of Fallston, NC

 I can't say enough good things about GSM! They always do a great job for me. No complaints. 

Marie of Fallston, NC

 GSM has always been efficient and dependable for us. 

Danielle of Iron Station, NC

 Excellent customer service, work and people. 

Rich of Cornelius, NC

 We are always pleased with all the guys at GSM and that is why we got the company approved as a vendor for our neighborhood! 

Rich of Cornelius, NC

 We have never had a problem with the quality of our unit, the associates, scheduling, or emergency calls. We highly recommend GSM to everyone. Great customer service. Professional, clean, and respectful employees and techs. GSM put our Heating & Air system in and has been servicing our unit every year now since April 2005. Thank you all so much. Sincerely, Robert & Angela Moffett 

Robert of Cherryville, NC

 I always receive great service from GSM. I have been a customer for 40 years if not more. Thank you, GSM, for always providing great service. 

Annette of High Shoals, NC

 We love the customer service. Our questions were answered and we really liked our technician. Very knowledgeable. GSM was recommended to us by friends and we are very pleased. 

Barbara of High Shoals, NC

 We've been customers for years. Everything was done in a complete and professional manner. We are always satisfied. 

Gary of High Shoals, NC

 Very pleased with GSM Services. The staff, office personnel, and service techs were incredibly helpful. I have used GSM for years and I have never been dissatisfied with their service. 

Jason of Waco, NC

 This was an install for my parents, 2 weeks ago we did the same install at my house and was so satisfied with mine that I did not consider any other company to take care of my parents 

Tommy of Stanley, NC

 GREAT JOB!!!!! 

Troy of Stanley, NC

 I had a team effort from GSM and each member of this team was awesome. the inspection tech was pleasant thorough and informative. the sales rep was helpful and I felt comfortable with my choice. the installation team was superior. I felt comfortable with having them here and their work was exceptional. I could not have had a better team and I was impressed with the entire team. If all your employees are this good then you are lucky in your choice of employees. Thank for this team 

Margaret of Dallas, NC

 Mike, Taylor and Matt were here for four days. Very professional, very personable and hard workers. They arrived on time each morning and always kept us informed of the progress. 

Paul of Dallas, NC

 Technician went above and beyond on this call. Should be praised. Very satisfied! 

Jennifer of Dallas, NC

 Mandy is very thorough with her work. She is pleasant and always explains what she has done during our appointment. We enjoy seeing her every time she comes to our home. We heard about GSM through advertising and word of mouth and we are very happy with the service. 

Paul of Shelby, NC

 I have always found the GSM workers, office and service people very respectful and professional. 

Ellenjane of Concord, NC

 It has been such a pleasure since we contacted you for service, and now that were on the service plan, it has made everything go so smoothly. Taylor was very professional and pleasant to have do our checkup. I have recommended you to friends, and my enemies to the company that installed the system. I wish I would have hired you to install system. Thanks 

James of Mt. Holly, NC

 I didn't know water heaters were something you did. next time they come out they need to talk to me about them. Mine is due to be replaced. 

Cheryl of Mt. Holly, NC

 service person came up with a $1000 estimate for work that 3 different HVAC companies bid $500. What is the benefit of an annual contract? Double the market? Sure seems exhorbitant & wrong. Please advise 

Mike of Mt. Holly, NC

 Dan G. goes the extra mile, and will stay as long as it takes to get the job done right! 

Sundae of Mt. Holly, NC

 Emailing a picture of the service person that was coming is an excellent practice, especially for a senior community like Magnoia Place. 

Dennis of Lowell, NC

 Always the best service and products! Thank you, GSM!! 

Ellen of Lowell, NC

 I have been impressed with the service since changing to GSM. 

K of Gastonia, NC

 We are always pleased with GSM. Any issues we have are always handled with professionalism. 

Janet of Gastonia, NC

 Zack and Tyler did a great job, courteous and explained what work was performed, answered all my questions. Very satisfied 

Sella of Gastonia, NC

 We have always had good experiences with GSM. 

Horace of Gastonia, NC

 Have always been pleased with the products and the services of GSM. Personnel are professionals who know their business. I highly recommend GSM for all HVAC needs. 

Rodger of Gastonia, NC

 Tech called me to confirm service tine, arrived promptly , was pleasant, courteous and knowledgeable. 

Carol of Gastonia, NC

 Jason was very polite & courteous he even put a bi- fold door back on its track for me on his way up to the attic to finish checking my system. Your technician are always very thoughtful. Thank you 

Pat of Gastonia, NC

 We were well pleased with the job your serve man preformed on our AC unit! 

Gary of Gastonia, NC

 Have used GSM for years on this home--and others owned. Always very good service. 

Don of Gastonia, NC

 My technician advised us to consider having our air conditioning coil protected from freezing up and we would like him to call us. Very good service 

Ken of Gastonia, NC


Robert of Gastonia, NC


Meg of Gastonia, NC

 Very knowledgable. 

J of Gastonia, NC

 service tech was fantastic 

Robert of Gastonia, NC

 not getting new heating and cooling yet but will in the future and will use GSM 

Linda of Gastonia, NC

 Great service as always! 

Robert of Gastonia, NC

 Techs were friendly and knowledgeable and answered all my questions. 

Nova of Gastonia, NC

 Your folks were extremely professional and went above and beyond by moving bricks and debris out from under the house and in the attic that I didn't know were there. That is a strong commitment to customer service. Pointed out several things we could do to help cut our energy costs. Did a great job of minimizing damage to carpets, walls, etc. Cleaned up after themselves. Your folks worked well together and did a fantastic job. Very happy. 

Bill of Gastonia, NC

 Danny Painter and Craig ? did VERY good job, as best I can see, explaining installation, system, and operation. 

Les of Gastonia, NC

 The service man was friendly, knew what he was doing, and did a good job. Thanks! 

Mike of Gastonia, NC

 The two Gentlemen were most professional and helpful in their explanations after the inspections. 

BF of Gastonia, NC

 This was a routine semi-annual service no problem to be solved or anything to be fixed..however, the routine work was done in an efficient and knowledgeable manner and the tech was extremely cordial and accommodating.. 

John of Gastonia, NC

 This was a routine semi-annual service no problem to be solved or anything to be fixed..however, the routine work was done in an efficient and knowledgeable manner and the tech was extremely cordial and accommodating.. 

John of Gastonia, NC

 Mike did a great job, will see him in the fall. This is our 15 year with GSM and love the service. 

Plummer of Gastonia, NC

 professional, polite, and efficient 

Pam of Gastonia, NC

 Very happy! 

Jean of Gastonia, NC

 Our service person was great we always request Dan.He is always knowledgeable, and pleasant. My wife and I are both seniors and he explains everything in easy ways to make it understandable for us 

Vincent of Gastonia, NC

 Very nice technician, good manners, clean up, and explained everything he was doing. GSM did a great job. 

Lorraine of Gastonia, NC

 Always a great job. Never not been happy 

Carl of Gastonia, NC

 Have worked with GSM, for over 25 years... the best in the industry 

Deltex of Gastonia, NC

 I always recommend you to friends and family. We are very confident in your treatment of our home. Thank you! 

Kathy of Gastonia, NC

 Great Company. Used them for years. They made a mistake once and went out of their way to correct it. Always pleased to have them show up. Nothing they can't fix. 

Robert of Gastonia, NC

 Brad, Tyler and Charlie were knowledgeable, friendly and great to deal with. Thank you to the GSM team! 

Ash of Gastonia, NC

 thanks for great service!! 

Jack of Gastonia, NC

 thorough and honest work 

Brenda of Gastonia, NC

 Great Company & excellent service technicians. 

Gene of Gastonia, NC

 I always have a great experience with your team! This time Dan visited us... he was great! We will be requesting him to be ours Tech from here on! 

Mark of Gastonia, NC

 Ours was a yearly check up. We learned that there was a part worn out on our air conditioner that could cause our air conditioner to stop working at any time. It pays to have your regular check ups. 

Wade of Gastonia, NC

 Trev (Trevaris Powe) was most thorough in explaining when we asked questions. He helped us with our thermostat, showed me how to change the furnace filter (even gave me a drill bit for the kind of screws I'd have to unscrew), showed me the filter for the crawl space dehumidifier. He checked a duct to see if it was clean. He checked under the house to see if there were any problems like trash, bugs or leaks. He was so kind, not impatient at all, and gave his phone number in case we need help or have more questions. He was the best service advisor we've ever had from any company for furnace and AC service. 

Belle of Gastonia, NC

 Sean and all the men mentioned above were friendly and exhibited no signs frustration or defensiveness which most companies and their employees do when you are not satisfied with their work. I appreciated the "Yes sirs, yes mam's". All these guys were great to have working in our home. I cannot commend these men and the culture you have created at GSM high enough. I am 63 years old and have had many companies to a variety of work on our appliances, vehicles, our house through the years but no company comes close to the standard you set for service and customer satisfaction. Thank you. 

Rick of Gastonia, NC

 Michael did an excellent job with great efficiency 

David of Gastonia, NC

 Awesome service. Even changed the batteries in our smoke detectors. Above and beyond. Terrific! 

Steve of Gastonia, NC

 I always request Thim Wade for my service 

Jeffrey of Gastonia, NC

 The extreme professionalism and courtesy from first contact to initial visit and then through completion of the job was unmatched. The employees were knowledgeable and went above and beyond to respond to my questions. We received prompt service without any pressure. We were pleased with the cleanliness, as well. Great work! 

Melissa of Grover, NC

 We never have any complaints, and we are always satisfied with their quality of work... 

Charles of Earl, NC

 Fantastic as always! 

William of Earl, NC

 Charlie McGinnas does an outstanding job...always. He is an asset to your company. 

David of Cramerton, NC

 Robert was able to identify the problem and fix it quickly. 

Pamela of Cramerton, NC

 Keep up the good work. 

Mike of Belmont, NC

 GSM do an excellent job meeting my HVAC needs.. 

John of Belmont, NC

 Very polite crew and excellent job done on the servicing. 

Tansukh of Charlotte, NC

 James Lewis is an excellent service person, very customer focused! 

Dennis of Charlotte, NC

 Mr. Thim Wade is amazing nothing but great things to say about him. 

Trey of Charlotte, NC

 it is troubling to have to add hard starters and the thing just installed. Complain to Mfg on my behalf . I do need a copy of the invoice for the thing just installed. Taylor was a very thorough and well organized tech. 

Mary of Charlotte, NC

 Great experience as always.....I talk to all of my neighbors about you guys..... 

Gregory of Charlotte, NC

 Very satisfied with service. The installer was very professional and explained everything they were doing at step of the install. All my questions were answered and I was very happy with my results. 

David of Mint Hill, NC

 Always pleased! 

Diane of Mint Hill, NC

 The GSM team are true professionals -- knowledgeable,courteous and timely. Importantly, they leave their work space neat and tidy upon completing the job. 

Ann of Charlotte, NC

 GSM has been a great company to work with. Everyone courteous and efficient. 

Constance of Charlotte, NC

 We've always appreciated the outstanding professional services provided by GSM. Your service personnel are unequaled anywhere! Thanks very much. 

John of Charlotte, NC

 Stoney Davidson and his crew have my seal of approval as a satisfied customer 

Maritza of Charlotte, NC

 Irritating to fill out name and address at beginning of survey. If you know enough info to send the survey, looks like we shouldn't have to type it all again. We're happy to give feedback, but not to tell you what you already know 

Blue of Charlotte, NC

 Always great job and super representatives. Prompt, efficient 

Bill of Charlotte, NC

 Brad was excellent. I told him what I was experiencing and he came in right away and assessed the problem and solved the issue. He told me what was going on and what was causing the issue. Brad was extremely pleasant and kind. He provided top notch customer service. I was extremely pleased with the service. I would recommend GSM to anyone. 

Antoine of Charlotte, NC

 Technician Dan Deneve was out at my house within a couple hours during the hottest time of the year. Prompt, reliable and AFFORDABLE!! Hands down best experience with HVAC company to date. Highly recommend. 

Tyler of Charlotte, NC

 Jim taught me more about my home, energy use and current systems in a few hours than I've learned in the 17+ years I've been in this house! Very, very thorough. Even called other people to loop in more expertise. One of the nicest people you'll ever meet. He sold me on GSM! 

Kelly of Charlotte, NC

 Scott Ramsey was my service technician. He explained everything that had to be done in detail. 

Gerri of Charlotte, NC

 We knew that air was not coming out of some vents and that the house was not cooling as it should. Scott Ramsey was able to find the problem and correct. We were very pleased with the work, communication, and advice. 

Holli of Charlotte, NC

 James is always very professional, explains what he is doing, is very knowledgable. He is a great asset to your company! 

Joan of Charlotte, NC

 This is really an overall feedback for Ritch Hallman. Excellent customer service, friendly, engaged in the questions i had, very thorough and knowledgeable. Loved the fact he provided a history of the company and the different services GSM provides! Outstanding job and thoroughly impressed. I recommended my boyfriend to call him for an audit. 

Franca of Charlotte, NC

 Mr. Ramsey was very polite, knowledgeable and helpful. Everything is working perfectly now. 

Kathleen of Charlotte, NC

 Very experienced and knows his product and is efficient and straightforward 

Bill of Charlotte, NC

 Professional, honest, and efficient. 

Larry of Bowling Green, SC

 Very pleased! We have had years and years of excellent experiences.. 

Alice of Bowling Green, SC

 I have been a customer since 1999. My experience with GSM Services has always been excellent, especially since Scott has been my service technician for a few years. 

Bobbie P. of Blacksburg, SC

 Charlie, Was great as usual. 

Andy of Lake Wylie, SC

 I've always been satisfied with the service I get from GSM. 

Bill of Clover, SC

 Thank you to everyone at GSM for everything you have done for me personally and professionally! Gregg 

Gregg of Clover, SC

 All of your staff is friendly, responsive & willing to help. Thanks. 

Pallesen of Lake Wylie, SC

 Great company and honest service. 

Renee of Pineville, NC

 Absolutely the best customer service and technicians in this area. GSM has always been a pleasure to work with! 

Joe of Pineville, NC

 This was my first experience with GSM and I must say that I was highly impressed. The service tech was knowledgeable, professional, and an excellent representative of the company. I would highly recommend GSM to everyone. 

Terry of Pineville, NC

 We have always had an excellent experience with the office staff and the service department. We like having GSM come to our home. 

Glenda of Indian Trail, NC

 We had a very scary problem in our home and received prompt service for the issue. Thank you to all the lades in the call center and the other employees that handled it. We got excellent service the same day. 

Bobbi of Tega Cay, SC

 I learned a lot about how air conditioners work. ?? We appreciate Scott's willingness to explain what was wrong with our system and what our options were. He answered all of our questions and even showed us how our system was malfunctioning. So glad to have someone we can trust. We have 100% confidence in GSM. Thank y'all. 

The of Fort Mill, SC

 Excellent Company! My sister used GSM to insulate her attic in her past house and present condominium. She referred me to GSM. I'm very satisfied! Thank you, GSM. 

Jean of Rock Hill, SC

 I already have recommended GSM to others. 

Chrystal of Gastonia, NC

 Great job! 

Linda of Gastonia, NC

 Charlietooks lot of time to explain problem and what needed to be repaired. 

Larry of Gastonia, NC

 I appreciate that the technician did not blow in for a quick filter change. He spent almost an hr checking everything. 

Mary of Gastonia, NC

 Scheduling my service appointment was very easy just as usual. Dan was great. Very professional as well as personable. He deserves a bonus for putting up with my dogs barking and the small crawl space where he had to access. 

Jeff of Charlotte, NC