Contact Us For
An Estimate!
Products & Services

HVAC Systems
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
air conditioning installation
air conditioning repair

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

Dryer Vent Cleaning

Before and After Pictures from Charlotte
Air Conditioning Service in Charlotte, NC

Air Conditioning Service in Charlotte, NC

Before After
Air Conditioning Service in Charlotte, NC Air Conditioning Service in Charlotte, NC

This homeowner had previously had a unit installed by GSM Services. Over time, it collected debris, like leaves and dust. The homeowner decided to call us for a FREE estimate on air conditioning service because they knew regular maintenance can help keep her system running smoothly and efficiently. We gladly visited the Charlotte, NC home to solve the issue. 

As soon as we recognized the debris around the unit, we knew that was the problem and had it removed. We also replaced parts of the unit that were not running as efficiently as they did when they were brand new. 

Now, this homeowner is experiencing better air conditioning throughout the home. 

Heatpump replacement in Charlotte

Heatpump replacement in Charlotte

Before After
Heatpump replacement in Charlotte Heatpump replacement in Charlotte

GSM Services replaced a 19 year old heatpump split system with a high efficiency GSM TruComfort Pro system.

Furnace in crawl space

Furnace in crawl space

Before After
Furnace in crawl space Furnace in crawl space

On this heating (PTU) precision tune up our Service Advisor, Thim performed maintenance and cleaned this furnace to ensure that the customer's comfort was at it's full potential.  

As you can see - cleaning and proper maintenance of your system is necessary.  Crawl spaces can be nasty, wet, dirty, moisture driven places that can hurt your heating and cooling system.  Having a scheduled tune up twice a year on a energy savings maintenance agreement (ESA) can prolong the life of your system.

 

Company Awards
Best of Gaston 2019
We won Best of Gaston 2019 for Best Heating & Air Conditioning Company and also Best Home Repair Company by... [Read more]
Top Place to work Charlotte 2018
GSM Services was voted for the second year in a row as one of the best places to work in... [Read more]
More Awards

Dependable HVAC and Furnace Service & Installation Company Serving Charlotte, NC

Happy Customers Surrounding Charlotte, NC
Testimonials
Reviews
Work Requests

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

Reviews From Charlotte
Testimonials From Charlotte
I am very happy with all the crazy work these poor guys had to do!
Testimonial by D N. from Charlotte, NC
The service folks who installed were awesome- they really worked long & hard and were so nice and so careful...
Testimonial by The B. from Charlotte, SC

Insulating Your Charlotte Home

Does your home feel too warm in the summer or cold in the winter?  If so, odds are your home needs an insulation upgrade.  At GSM Services, we can improve the overall comfort of your home while helping you lower the your monthly heating and cooling bill. Our home insulation experts have the skills and expertise to install the right type of insulation for your home.

We offer a variety of home insulation services that were scientifically engineered to improve every area of your home. We understand that using the correct type insulation in the right areas of your home. We offer insulation in the attic, basement, crawl space, walls, floors, and even the garage! Even though crawl spaces can be a relatively small part of your home, they can leak air in from the outside unless they're properly insulated. Before we begin to insulate your home, we will perform a thorough investigation of your home's current insulation. If you are interested in better insulating your home, contact us today for a FREE home insulation estimate.

Types of Insulation
  • Blown-in Fiberglass & 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

Professional Air Conditioning & Heating Services

Just like your local car mechanic, HVAC contractors are of varying qualities and so is the quality of the work that they provide. Rather than deal with poorly done work, trust the local HVAC contractors at GSM Services to make sure the job is done right the first time. Since we have been in business since 1927, we have been the go-to air conditioning services company of Greater Charlotte, North Carolina. We offer a variety of AC services ranging from installation, repair, and maintenance of ductless, central air conditioning, and more. If your home's cooling system is not running the way it should, don't sweat it because we can make any cooling system repair fast! Contact the ac service experts at GSM Services today for a FREE consultation. 

Just like how air conditioning is important in the summer, you need your heat to work properly in the winter. At GSM Services, we service all kinds of home heating systems in Charlotte, NC. From gas to oil, and forced air to electric heat, we can do it all. Having you furnace work as it is intended to is one of you biggest priorities, so who better to trust to service your home's heating than the experts at GSM Services!  

Heating
  • Gas Furnace
  • Oil Burners
  • Electric Furnaces
  • Heat Pumps
  • Wood Heating
  • Forced Air Heaters
  • Hot Water Heater
  • Tankless Water Heaters 
Cooling
  • Central Air Conditioning
  • Ductless Air Conditioning
  • Evaporative Air Conditioning
  • AC Repair & Installation
  • Dehumidification
  • Heat Pumps
  • Ductwork Cleaning
  • Ductwork Sealing 
  • Ductwork Repair
  • Air Purification

Excellent Home Energy Audits

Before we do any insulation or HVAC work, we take the time to perform a custom home energy audit. We will talk with you to see what concerns you have, and what areas of your home need the most attention. After we are done evaluating you home, we will take the time to sit down with you to discuss the results and give our opinion so you can make the best decision for you and your family. Since 1927, GSM Services has been working to improve homes in the Charlotte area, so we have the skills and expertise to ensure that the job is done right the first time. Contact us today to discuss your home energy issues, we would love to help make a more comfortable home for you and you family!

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

  • Blower Door (Infiltrometer) Test
  • Insulation Level Check
  • Appliance & Lighting Checks
Case Studies From Charlotte
Commercial
Our Commercial Roofing Division of GSM Services working on a multi-leve roof with rooftop HVAC units and drains.
Press Releases From Charlotte
Gastonia-The Charlotte Observer has recognized 55 Companies and Organizations in the area as Top Wor...
Gastonia-The Charlotte Observer has recognized 55 Companies and Organizations in the area as Top Workplaces in 2017. Locally owned HVAC company, GSM (Gastonia Sheet Metal) took the No. 3 spot in the midsize category of companies with 150-499 employees. An awards ceremony was held in the NASCAR Tower production studio. The event included a keynote speech by David Oakley, founder and creative director of BooneOakley advertising.... [Read more]
Dr. Energy Saver Charlotte received an award at the Team Basement Systems International Convention for ranking among the Top 10 Dr. Energy Saver Dealers!... [Read more]
Job Stories From Charlotte, NC
GSM TruComfort Signature Series Heating and Cooling System Replacement

We installed a higher efficiency GSM TruComfort Signature Series system for this home.  We also included a Nest Protect (Smoke and Carbon Monoxide Detector) which provides heads up alerts by voice and message to your smartphone. 

GSM TruComfort Signature Series Heating and Cooling System Replacement - Photo 1GSM TruComfort Signature Series Heating and Cooling System Replacement - Photo 2GSM TruComfort Signature Series Heating and Cooling System Replacement - Photo 3GSM TruComfort Signature Series Heating and Cooling System Replacement - Photo 4
Attic Installation of New Heating System

Installations of new heating and air conditioning systems aren't always the easiest.  In fact, it is also hard to take good pictures as well.  Attic working conditions don't leave the best of senerios for working, our guys installed this one on a 86 degree day, which in an attic gets over 120 degrees (and thats a cool attic).  Attics involve tight working spaces, hot temperates, and also hard access. 

These photos are from a recent job showing the working situations that we do on a daily basis.  Imagine weaving duct work through this attic all while not falling through the ceiling.

 

Attic Installation of New Heating System - Photo 1Attic Installation of New Heating System - Photo 2Attic Installation of New Heating System - Photo 3Attic Installation of New Heating System - Photo 4
Work Requests From Charlotte, NC
Vicinity of Craftsbury Dr in Charlotte
Need insulation in attic, stairs and crawl space.
Vicinity of Valencia Terrace in Charlotte
I am interested in having a standby generator insalled. Would like a quote but not sure about a Generic. Neighbors have one that is too noisy. Do you deal with other brands.
Vicinity of Woodbriar Trail in Charlotte
Looking estimates on duct systems and heating and air replenishment ( working on a budget)
Vicinity of Lemon Tree Lane in Charlotte
Want to get a quote on installation of a generac unit
Vicinity of Wyndcrofte Pl in Charlotte
I need some work done for attic insulation and duct sealing. I can feel cold air coming out of my handler in the attic.
Vicinity of Corolla Lane in Charlotte
Would like a home energy audit done to identify areas of improvement.
Vicinity of S Mint St in Charlotte
Our unfinished basement is very moist, dirt floors and brick walls. Interested in getting it encapsulated. Also interested in getting seeing if we need to make other improvements so a blower door and duct blaster test would be helpful as well to prioritize
Vicinity of Voeltz Dr in Charlotte
AC unit will not turn on, however the fan cycles on/off intermittingly. The outside unit (compressor) still runs however, it had ice/frost on the base connector, not the hose or anywhere else that I noticed. What is the cost for a service call.
Vicinity of Treyburn Drive in Charlotte
Tune up and maintenance of HVAC system
Vicinity of West Bank Drive in Charlotte
I am considering having my attic re-insulated. I would like to ensure that my ducts are sealed properly before new insulation is blown into the attic space.
Vicinity of in Charlotte
We would like an energy audit for our building, we were told we need a new HVAC unit, but received two different quotes from people, that includes different sizes and ratings, neither of which are the size of the current unit. We would like to take a couple of steps back and identify energy use, areas where we can seal/ insulate to increase efficiency and identify the right replacement for our system with a home energy audit and estimate on a replacement unit.
Vicinity of Bridgeville Ln in Charlotte
I am looking to replace an A/C unit for a 2 story 2100 square foot home. I am trying to get a fair evaluation on how the HVAC system is currently setup in the home and see if there are options to improve.
Vicinity of Barwick Rd in Charlotte
Our power bill is extremely high each month (especially in the summer time), and our master bedroom and nursery are hot in summer and cold in winter. I would like to have someone do an energy survey at our house to determine if there is anything we can do we ensure our home is comfortable and cost effective year round.
Vicinity of Fellsway Rd in Charlotte
Tenant has reported uncomfortable temperatures in attic and basement of split level house. Would like to investigate cause and quote attic insulation.
Vicinity of Ewing Ave. in Charlotte
I would like to discuss replacing an existing system with a geothermal system and get an estimate.
Vicinity of Camden Rd in Charlotte
A new Air Conditioning Unit
Vicinity of Persimmon Tree Dr in Charlotte
My A/C unit stopped working
Vicinity of Harri Ann Drive in Charlotte
HVAC Needs Replaced! Determined prior to contacting this company at closing on my house that it needed to be replaced. well the system unit has died.
Vicinity of Cedar Croft Drive in Charlotte
Asking for free home energy audit. Interested spay foam in the attic.
Vicinity of in Charlotte
We are hearing some water trickling around the ceiling, in/around our A/C unit. My boss thinks it's in the drip pan, but we would like an HVAC tech to take a look at it, please.
Serving the following Charlotte, NC zip codes
28201, 28202, 28203, 28204, 28205, 28206, 28207, 28208, 28209, 28210, 28211, 28212, 28213, 28214, 28215, 28216, 28217, 28218, 28219, 28220, 28221, 28222, 28223, 28224, 28226, 28227, 28228, 28229, 28230, 28231, 28232, 28233, 28234, 28235, 28236, 28237, 28241, 28242, 28243, 28244, 28246, 28247, 28250, 28253, 28254, 28255, 28256, 28258, 28260, 28262, 28263, 28265, 28266, 28269, 28270, 28271, 28272, 28273, 28274, 28275, 28277, 28278, 28280, 28281, 28282, 28284, 28285, 28287, 28288, 28289, 28290, 28296, 28297, 28299
Top