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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

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


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 repair
ductwork installation
ductwork cost
furnace ductwork
hvac ductwork
Duct Cleaning

Before and After Pictures from Matthews
Heating and Air Conditioner replacement in Matthews, NC

Heating and Air Conditioner replacement in Matthews, NC

Before After
Heating and Air Conditioner replacement in Matthews, NC Heating and Air Conditioner replacement in Matthews, NC

Installed a GSM TruComfort Pro Series Heating and Air conditioning system in Matthews, NC.

Company Awards

Furnace Installation & Repair Company Serving Matthews, NC

Once again, very pleased with our experience with GSM....
Happy Customers Surrounding Matthews, NC
Work Requests

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Reviews From Matthews
Testimonials From Matthews
Neat appearance, trucks look great, the crew was really nice also, will recommend your company to anyone.
Testimonial by Richard Z. from Matthews, NC

Matthews's Furnace Repair Experts

There are many reasons why your home’s heating system or furnace may not be working like it should (or working at all). Regular maintenance is important to prevent problems with your heating system and to keep your home comfortable and your energy costs low. Here at GSM Services, we can evaluate your current heating system and provide a fast quote to get your furnace running like new. We provide repair and maintenance services for oil, electric, gas, and propane furnaces.

Furnace Installation & Replacement

Is it time for a new furnace? Furnace replacement will be necessary if a major problem develops – such as a cracked heat exchanger. GSM Services is your local expert for heating system replacement. Before we replace your existing furnace, we will thoroughly inspect your heating system. If you require a new furnace, we can install a heating system that's right for you.

We install a variety of types of furnaces:

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

Schedule a FREE Estimate!

Insulating Your Matthews Home

We specialize in a variety of home energy improvement services that were 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 Matthews, 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

Heating & Air Conditioning Repair, Installation & Maintenance Service Contractor 

As Matthews's trusted air conditioning and heating systems repair contractor, you can rest assured that we will get the job done right the first time! We have been in business since 1927 and repairing homeowner's HVAC systems.

If you feel that your home's HVAC system is not working as it should, we can fix that. We offer maintenance, repair, and installation services of all kinds of heaters. Did you know that having an efficient heating unit will not only help keep your home warmer in the winter months, but can greatly improve the air quality of your home?  

Along with heating repair, we also offer a wide variety of air conditioning system services. Having heat is a necessity for home owners in the Greater Charlotte area, especially in the winter.  Our team of HVAC repair & service professionals can replace any heating system from furnaces to electric heaters, so no matter what sort of heating your home uses, we can make your you're never left out in the cold.

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

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

Schedule a FREE Estimate!

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!

News & Events From from Matthews
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]
Work Requests From Matthews, NC
Carriage Crossing Dr. in Matthews
Old Condensor units outside, exceptionally high power bills, higher every year, systems not able to keep house cool during the day, and hot/cold spots in house.
Stonemede Ln in Matthews
Would like to get an estimate on: 1. Sealing an reinsulating the attic 2. Better insulating the floor above the garage. Email is definitely the best way to get a hold of me.
Savannah Hills Dr. in Matthews
I just want to reduce my energy bills I know that there is a section of duct work that needs to replaced, due to a squirrel in the attic.
Southern Loop Blvd in Matthews
We have one unit located on roof is not working. This make our front office hot.
Matthews Indian Trail Road in Matthews
Need insulation in attic and crawl space as well as the crawl space cleaned and vapor barrier.
Marion Dr in Matthews
We definitely need to seal and better insulate our attic and maybe walls. We have hot and cold spots throughout our house. The house was built in 1967 and has probably never had the insulation upgraded.
Darlington Road in Matthews
Needing insulation in attic...
Whitefriars Lane in Matthews
Upgrade attic insulation and air seal penetrations.
Millbank Drive in Matthews
Tune up. Air Conditioner issues - want a check up
Aringill Ln in Matthews
Room above garage is very cold. We would like to know the solution for weather proofing garage ceiling or any other solutions you can provide.
Dockside Ct. in Matthews
Need insulation in attic, our air conditioner can not cool the house properly in the summer.
Oxborough Drive in Matthews
Insulate Attic Door, Add blown in insulation, seal Attic leaks
Walnut Point Drive in Matthews
I had water spots on my 1st floor ceiling. I called a plumber to address what I thought was a pipe leak. He cut a hole in the ceiling to examine and it was the sheet metal ductwork that was causing the water damage. It appears to be giving off condensation for quite sometime. I had a small shop (A/C Company) look at it. The don't specialize in ductwork. I would like for someone to come out and examine the issue and resolve the issue.
E Matthews St in Matthews
Price on blown in insulation my house is 1195 sq ft and garage ic 728
Tranquil Falls Ln in Matthews
I have a two year old home and suppose to be energy star rated, but I'm not sure. Don't see insulation over garage, and maybe I'm not taking advantage of the best technology. Home is a ranch, two years old.
Kimberfield Rd in Matthews
Additional insulation blown into attic area.
Pine Pointe St in Matthews
I would like a quote to remove and replace attic insulation on a 1200 sq ft home.
Caliterra Drive in Matthews
Hello, it seems we have an insulation, not enough vents, or an air leak problem. Some areas of the house are not cooling.
Kidwelly Lane in Matthews
Humidity in Crawl Space
Annecy Dr. in Matthews
Some visible parts of insulation in crawl space fallen. Some moisture seem in photo. Approx 1,175 Sq.ft.