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air conditioning contractors
air conditioning systems
central air conditioning
ductless air conditioning
gas furnace
geothermal heating and cooling
heating and cooling systems
high efficiency furnace
home heating systems
hvac companies
hydronic heating systems

Crawl Space Insulation

Home Energy Saving & Audit
energy efficiency audit
energy saving devices
energy saving products
energy saving tips
home energy audit
home energy conservation

Electrical
generators


Home Insulation
attic insulation
blown in insulation
cellulose insulation
duct insulation
green insulation
insulation contractors
pipe insulation
reflective insulation
rigid foam insulation
roof insulation
wall insulation
window insulation

Water Heaters
gas water heaters
high efficiency water heater
hot water heaters
indirect water heater
instant hot water heater
on demand hot water heaters
solar water heater
tankless water heaters
water heater installation
water heater replacement


Air Sealing
sealing air leaks
air duct leakage
air duct sealing
air leakage testing
door air seal
window air leakage

Radiant Barrier
radiant barrier insulation
radiant barrier cost
roof radiant barrier

Ductwork
ductwork repair
ductwork installation
ductwork cost
furnace ductwork
hvac ductwork
Duct Cleaning

Before and After Pictures from Mount Holly
Before and After Condenser Cleaning

Before and After Condenser Cleaning

Before After
Before and After Condenser Cleaning Before and After Condenser Cleaning

Cleaning the outside unit and removing the debris can help your AC system run more efficiently.

Company Awards

Mount Holly's Leading Furnace Service & Installation Contractor

We appreciate your good quality work.  We are well satisfied....
Happy Customers Surrounding Mount Holly, NC
Work Requests

Click the icons to see what our customers had to say.

Reviews From Mount Holly
Testimonials From Mount Holly
We couldn’t be happier with all aspects of your company! Thank you ever so much!
Testimonial by The Browns from Mt. Holly, NC
Your two technicians who did the installing were very hardworking, very knowledgeable and also courteous.
Testimonial by Ms. Stroupe from Mt. Holly, NC
We had a great experience with GSM.
Testimonial by Kris V. from Mt. Holly, NC

Fast & Affordable Furnace Service Specialists

If your furnace won't turn on, if there's a leak, if the blower isn't working or if you want regularly scheduled maintenance, you are in the right place! GSM Services has a dedicated and devoted team of furnace service professionals with decades of combined experience. Our trained technicians can provide a prompt and thorough inspection of your unit to determine the problem and suggest the solution. Our furnace service team provides FREE written estimates for all potential furnace repairs so you will never be surprised by the bill. Also, we provide furnace service for all types and models, including natural gas, oil, electric and propane. Don’t hesitate to contact us today, call or click to schedule your furnace service appointment with GSM Services!

Benefits of regular furnace service:

  • Optimal home comfort
  • Reliable performance
  • Better furnace efficiency
  • Extended life
  • Lower repair costs & increased energy savings

Proven Furnace Installation Experts

If your furnace is old or your bills seem too high, replacing your furnace will be the best option. Basic usage compromises your unit over time and keeping a damaged or old furnace may be costing you more money than installing a new unit. Our certified and highly trained team of furnace installation professionals can provide a thorough inspection of your unit to help you make that decision. Our skilled experts can replace all types of units with high-quality and energy efficient models that are guaranteed to lower your energy bills by as much as 30%. Trust our furnace installation professionals to provide you with reliable services every step of the way. Call or click today to schedule your FREE furnace installation estimate!

We install a variety of types of furnaces:

  • Gas furnaces
  • Oil furnaces
  • Electric furnaces
  • Propane furnaces
  • Heat pump systems

Mount Holly's Dependable Home Insulation Professionals

We specialize in a variety of home insulation services that are aimed to lessen your home's carbon footprint and save energy and money each month! We offer it all, from air sealing to ductwork to various types of insulation services such as blown in fiberglass, cellulose, injection foam, and more in Mount Holly, NC. We understand that you need to use the correct type of insulation in your home, and it needs to be placed in the correct areas.

Before we perform any insulation work in your home, we first take the time to conduct a custom home energy audit.  The audit is used to figure out what the root cause of your energy woes, and gives us an idea of what the best method would be to fix it.  At GSM Services, we not only test and investigate your home's energy usage, but we will discuss and prioritize the proper repairs. You'll know which ones will save you the most energy and why. This will also help direct you in making the best decision for you and your family.

Types of Insulation
  • Blown-in Fiberglass
  • Blown-in Cellulose       
  • Rigid Foam
  • Injection Foam
  • Radiant Barrier  
  • Sealing Air Leaks
  • Air Duct Sealing            
Areas of Home
  • Attic Insulation
  • Basement Insulation
  • Crawl Space Insulation
  • Garage Insulation
  • Wall Insulation
  • Floor Insulation
  • Ductwork Insulation

Crawl Space Insulation Experts

Is there moisture in your crawl space? Does your home have proper crawl space insulation? Even if you think your crawl space has enough insulation do not hesitate to contact us. We have a team of crawl space moisture and insulation experts that will give you peace of mind when it comes to your crawl space. It is always better to have too much insulation than to have a space without any insulation at all. Crawl space insulation is very important to the efficiency of your entire home due to the fact that moisture in your crawl space can also lead to rot, structural issues, and health concerns. Don't let moisture in your crawl space plague your home. Contact us today to learn more about our crawl space moisture solutions!

Air Conditioning Repair, Installation & Service Company

Here at GSM Services, our skilled technicians can inspect your air conditioning system and provide the right services to prolong the life of your cooling system and keep your home comfortable. We provide repair and maintenance services for all brands and models of central and ductless air conditioners.

Our Air Conditioning Services Include:

  • Air conditioning tune-ups & maintenance
  • Air conditioning repair
  • Air conditioning system replacement
  • Refrigerant replacement
  • Thermostat repair & replacement

Comprehensive Home Energy Audits

Our team of home energy take the time to carefully examine your home and can provide comprehensive home energy audits that identify the areas that need improvement. Once we finalize the test, we will sit with you and show you exactly what was found and giving you a prioritized list of list of home energy tasks. Our custom home energy audits allow us to help homeowners improve the overall energy efficiency of their home's and can help save you money!

Evaluations Include:
  • Air Leak Inspection 
  • Thermal Scanning
  • Detailed Explanation    

  • Blower Door (Infiltrometer) Test
  • Insulation Level Check
  • Appliance & Lighting Checks
Job Stories From Mount Holly, NC
New Installation Multiple Furnace Systems - Local Church

From residential to light commercial our residential heating and cooling division will help keep your home or business comfortable.  We recently completed a 5 unit furnace installation at a local Church in Mount Holly, NC. 

 

Give GSM a call for a free estimate for new installations on heating and cooling systems for light commercial and residential homes.

New Installation Multiple Furnace Systems - Local Church - Photo 1New Installation Multiple Furnace Systems - Local Church - Photo 2New Installation Multiple Furnace Systems - Local Church - Photo 3
Work Requests From Mount Holly, NC
Silvercliff Dr in Mount Holly
Interested in a quote for a whole house standby generator.
RIVERFRONT PKWY in Mount Holly
Looking at replacement HVAC system
Antelope Drive in Mount Holly
Need the furnace replaced for the bonus room over the garage. The a/c part of the unit still works. thanks!
Riverfront Parkway in Mount Holly
Need quote for new HVAC. Current system won't cool when outside temp is above 80.
S Canyon Ridge Drive in Mount Holly
My AC unit iced over. Additional information: Date requested: 06/25/2018
Cottonwood Drive in Mount Holly
Bonus room surrounded by attic space. Room temp climbs to upper 70's when outside temp gets to upper 80's. Air temp coming out of vents is 58-59 at night but climbs to 68-70 once outside temp gets to upper 80's. Concerned about duct leakage and general temp and ventilation of attic.
E Charlotte Hwy in Mount Holly
House built in the 1940's. Lot of work was done in the 90's. My wife and I bought the house 2 years ago and have been remolding the whole house. The next steps are HVAC. The current unit is over 20 years old. We need a action plan put together for what are the next step that are necessary when the existing unit fails. I need to know what insulation / duct work I need to start replacing and I am really interested if ducted mini splits units are a good fit for our upstairs/ down stairs.
Autumn Woods Boulevard in Mount Holly
A/C unit is 15+ years old. Regular maintenance service. Additional information: Date requested: 06/22/2018
Peppertree Dr in Mount Holly
Ac doesnt blow air at all unit is frozen
Brookstone Dr in Mount Holly
My AC is working, but it is 17 years old
Harvest Farm Court in Mount Holly
I am in the process of building a house. Should close mid-late June. Looking to do a commissioning of sort of new HVAC system.
Planters Way in Mount Holly
LOW ON COOLANT/ FREON & Evaporator Coil Replacement
Crestline Drive in Mount Holly
A/C is not turning on. Came on one day last week for a little while, then nothing. And would like an estimate on new system including redoing duct work and return system. Thank you.
Eastwood Drive in Mount Holly
AC Tune-Up as part of my Service Agreement. Basically an appointment any afternoon after 3:00pm is fine.Thanks Additional information: Date requested: 05/10/2018
in Mount Holly
I want to know what the $98.00 tune up provides. I have a Mount Holly address, but live just outside the Stanley city limits. I live in a double wide manufactured home with an Intertherm heat pump.
S. Main St. in Mount Holly
Need a tune up and may be having trouble with one of our units.
Noles Dr in Mount Holly
I have a Generac Guardian 16kw back up generator. It is one year old and the service light just came on. Additional information: Date requested: 04/06/2018
Dawn Dr. in Mount Holly
Wanting to get the house and shop done
S Mulberry Court in Mount Holly
I feel I have leaks in my duct work. The vents in 2 bedrooms on one end of the house barely blow. There are odd smells like I could have back drafts. Also seeing a lot of dust. Would also like a quote for new ac unit, as I have a small Freon leak in mine.
West Catawba Ave in Mount Holly
Insulation under home needs repair and /or replacement. Place vapor barrier.
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