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Reviews From Shelby
Products & Services

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

HVAC Systems
air conditioning contractors
air conditioning systems
boiler heating 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 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 Shelby
Heating System Precision Tune Up

Heating System Precision Tune Up

Before After
Heating System Precision Tune Up Heating System Precision Tune Up

Our Service Advisors work hard to keep you comfortable! We thoroughly clean and service your system to bring it back to life.  Regular maintenance extends the life of your heating system.


Company Awards
GSM Services was chosen by its employees as a top workplaces winner among Charlotte-area companies.... [Read more]
Recognized as the Best of Gaston 2017 for the following categories: # 1 in Heating A/C Services # 1 in... [Read more] [Read more]
More Awards

Air Conditioning Repair & Attic Insulation Contractor Serving Shelby, NC

I am very satisfied with your company, from the sales rep to the installers....
Happy Customers Surrounding Shelby, NC
Work Requests

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Insulating Your Shelby 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, spray foam, injection foam, and more in Shelby, 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 Shelby's trusted air conditioning and heating systems repair contractor, you can rest assured that we will get the job done right the first time! Since 1927, we have repairing homeowner's heating and air conditioning 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 boilers and oil to gas and 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
  • Gas Boilers
  • Oil Boilers
  • 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

Get A FREE Quote Today!

News & Events From from Shelby
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 "saving money". Take a look at your heating and cooling costs and have a Whole Home Energy Evaluation done.... [Read more]
What Is a Home Energy Audit? A home energy audit is a service provided by GSM Services to help you determine what you can do to make your home more efficient and help your AC and heating equipment to perform better. You get an assessment of your home, and you can get a custom plan for healthier air, energy savings, and comfort and most importantly, we will do this FREE to provide you the best options to improve your home comfort.... [Read more]
Work Requests From Shelby, NC
Metcalf Road in Shelby
We are in immediate need for a quote to add duct and HVAC to a new event center we are buying this week. Can we setup a time asap to meet and get a quote
Country Garden Drive in Shelby
Request estimate on duct cleaning
Stockton St. in Shelby
Downstairs of our house is very cold and drafty -- I'm wondering if it's an insulation problem?
AC not working
Carson Rd in Shelby
In need of air conditioner ours went out
Merit Drive in Shelby
Shoal Creek Church Road in Shelby
Looking for service on generator. Referred by employee. Appointment set.
Burke Road in Shelby
I am preparing to build a new house. I am interested in a geothermal heat pump and spray foam insulation. I have a 1 story house plan with a bonus room over the garage. All ceilings are 9' and the foundation is a crawlspace. I plan to use a pier and curtain foundation and would like to do a sealed crawl space.
Stonecrest Dr in Shelby
I have a 30x50x16 metal building that has no insulation and I was wondering the best way and the cost to insulate . Foam or reflective?
Mellon Rd in Shelby
The air conditioner is not cooling the house down.
Old Boiling Springs Roda in Shelby
Business - IMC Metals America When we have heavy rain, we experience leaking all along front office windows that appears to be coming from the lentil above the windows. We need someone to come out and diagnose the problems and estimate the cost to repair them
Wilson Cornwell Road in Shelby
Previous customer looking to schedule appointment for the install of a a/c unit in there new property. Appointment Set
Deerbrook Dr. in Shelby
Air vents are dirty with some mold showing. I need them cleaned. Single story family home. pets. non smoking.
Oak Grove Rd in Shelby
Installing new metal roof over shingles
Hardin Dr in Shelby
High electric bills - no insulation in crawl space floor and house is over 50 years old and probably has not had an insulation update in as many years.
West Warren in Shelby
Two story building 100x20 in need of new roof close to up town
North White Oak Dr. in Shelby
Have hot water leak, and all systems 15 years old
E. Marion St in Shelby
Estimate on mini-split for small office.
Poplar Circle in Shelby
I am interested in getting an estimate for insulation for my house. All of the insulation under the house is gone and none of the ducts are wrapped. I am a school teacher so if you call after Jan. 1st, you may have to leave a message and I will return your call.