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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 Belmont
Furnace Tune Up

Furnace Tune Up

Before After
Furnace Tune Up Furnace Tune Up

Crawlspaces - sometimes furnaces are located in the tight, dark, hard to get to spots that most people don't want to venture into.  Our Service Advisors work in all conditions to improve the comfort of the customers.  Matthew focused in on this precision tune up to ensure that everything was working as it should.  He cleaned the system inside - out. Knowing that your system is maintained and reliable is allows us to focus on our #1 - You, the customer.

Humidifier maintenance and tune up

Humidifier maintenance and tune up

Before After
Humidifier maintenance and tune up Humidifier maintenance and tune up

Do you want the air you breathe to look like this?   Regular maintenance and tune ups on your heating/cooling system as well as additions like this humidifier need to be taken care of on a regular basis. 

Crawl space - Encapsulation

Crawl space - Encapsulation

Before After
Crawl space - Encapsulation Crawl space - Encapsulation

recent before and after of a "problem" crawl space.  See how GSM's Dr. Energy Saver division completely sealed and insulated the crawlspace to protect the home from the elements.

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

Belmont, NC's Leading Furnace and HVAC Service & Installation Company

The cleaning and repair to the ducts in my home have vastly improved the air quality in my home....
Happy Customers Surrounding Belmont, NC
Testimonials
Reviews
Work Requests

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

Reviews From Belmont
Testimonials From Belmont
Crew did a great job and are welcome to work on other half of project.
Testimonial by Mr. Aaron from Belmont, NC
A great experience from start to finish.
Testimonial by Allen P. from Belmont, NC
Very pleased with the professionalism of technicians and prompt response time.
Testimonial by William & Jacqueline E. from Belmont, 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

Belmont'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 Belmont, 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
  • Ductless air conditioning
  • Central air conditioning

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
News & Events From from Belmont
This is the question that most homeowners don't want to think about.  No one wants to think about their...
This is the question that most homeowners don't want to think about. No one wants to think about their air conditioning going out during the middle of summer or their heat going out on below freezing days. Read below on ways we can help you out in the long run.... [Read more]
Do you need a wifi thermostat in your home? How much does a wifi thermostat cost? What makes a wifi thermostat smart? How much money can you save with a wifi thermostat?... [Read more]
Home improvements are a great way to start off your new years resolution of
Home improvements are a great way to start off your new years resolution of "saving money". Take a look at your heating and cooling costs and have a Whole Home Energy Evaluation done.... [Read more]
Work Requests From Belmont, NC
Vicinity of Lake Wylie Rd in Belmont
AC blowing but not cooling
Vicinity of North Street in Belmont
I want to update my cooling and heating system.
Vicinity of in Belmont
The screen to adjust the temperature is not working on our well side. Can you please check it out? The temperature also should be adjusted. Each morning we come in it is very muggy. Thanks Additional information: Date requested: 07/12/2019
Vicinity of Wisteria Lane in Belmont
Annual maintenance for my HVAC in my house
Vicinity of Holly Drive in Belmont
Need an estimate to replace the duct work in our house.
Vicinity of Beechwood Ct in Belmont
Upstairs unit is 10yrs old and needs to be replaced.
Vicinity of Belle Meade Circle in Belmont
We have to units in our house. The upstairs unit is not keeping up with the downstairs unit. THere is about a 10 degree difference in the 1st and 2nd floors.
Vicinity of Jackson St in Belmont
Spray foam insulation quote on a 16x16 floor
Vicinity of Southridge Dr in Belmont
Replace a 3 ton Gas Packaged heat/AC unit.
Vicinity of East Catawba St in Belmont
Commercial flat roof TPO failed membrane need quote for roof replacement. Catawba Mills Condo association
Vicinity of McLaren in Belmont
I would like somebody to come look at my air flow to eliminate soom rooms being very hot while others are very cold.
Vicinity of Victoria Blake in Belmont
Need air ducts/vents cleaned and filters changed
Vicinity of Lake Pointe Dr in Belmont
I'd like to see if you offer an annual contract for residential HVAC maintenance. Thanks!
Vicinity of Dorie Dr in Belmont
In our upstairs, two bedrooms seem to get no air out of the vents while one room gets all the air. It seems like we need the duct work to be changed, and I'd like to get a free estimate for that work.
Vicinity of Linford St in Belmont
I would like a quote on replacement of coils in evaporator due to a leak
Vicinity of Reflection Pointe Blvd in Belmont
Generator installation
Vicinity of Brook Forest Dr in Belmont
I have a two story house with one air conditioning unit. I would like an estimate for zoning the house and ductwork replacement.
Vicinity of Sloan Street in Belmont
I'd like to get an estimate on duct work repair/replacement? My dogs have destroyed it.
Vicinity of Wade Hampton Circle in Belmont
Need a tune up on A/C unit.
Vicinity of Southridge Dr in Belmont
Single unit on 2 story needs upgraded
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