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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 Fort Mill
New Gas Heating and Air Conditioning system in Fort Mill

New Gas Heating and Air Conditioning system in Fort Mill

Before After
New Gas Heating and Air Conditioning system in Fort Mill New Gas Heating and Air Conditioning system in Fort Mill

GSM installed a new gas heating and air conditioning system with new metal duct work.

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

Fort Mill, SC's Go To Air Conditioning Repair, Maintenance, and Installation Contractor

Happy Customers Surrounding Fort Mill, SC
Work Requests

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Reviews From Fort Mill
Testimonials From Fort Mill

Insulating Your Fort Mill 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 Fort Mill, SC,. 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 Fort Mill'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 Fort Mill
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]
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]
High energy bills can come as a surprise in the winter. In our service area, air conditioners see a lot more use than heaters. When temperatures drop, homeowners might feel relieved as bills start to lower as well-until the heater becomes more and more of a necessity.... [Read more]
Work Requests From Fort Mill, SC
Whispering Oaks Lane in Fort Mill
We have a Trane system, and this morning the heat indicated "On" on the thermostat, but the unit wasn't running. After a couple hours, the heat did actually come on, but would like a service visit, and your company was highly recommended. I have not yet looked at the codes to see what the issue was, that's on my to-do list :) Let me know if you are available for a service visit. thanks Kerry Simpkins
Gold Rush Ct in Fort Mill
We have a Generac 25KW installed at our former home in Chester, SC and we need to have moved to our new home in Tega Cay, SC. This would include removing it, transporting it to Tega Cay, reinstalling it and servicing the unit. The Generac is relatively new, having been installed in February 2016. Please let me know if you have do this project. Thanks
Ashley Arbor in Fort Mill
Have bought this house about a month ago and would like to get all the duct work in attic replaced - thank you, noble
Benedict Place in Fort Mill
I need to have the attic insulation evaluated.
Blandina Ct in Fort Mill
I'd like a quote on two projects: 1. Cleaning our air ducts (we have 15 ceiling and floor vents, and 2 return vents), from an electric heat pump that's located in our crawlspace 2. Moisture control and air sealing of crawlspace: we have a poor plastic vapor barrier and floor joint insulation, but high humidity and moisture wicking up into the concrete block foundation has led to the insulation dripping off and minor mold spots in a couple of places. I'd like to control moisture and insulate the floor/improve energy efficiency with our heat pump. I'd specifically like to know about the option for open or closed cell spray foam along the foundation walls and a new vapor barrier. I don't know that I want to encapsulate the crawlspace -- just protect the heat pump and keep the house interior tight and energy efficient. Thanks for any guidance! -- Patricia
Sooner Lane in Fort Mill
Our heating has a weird smell when we turn it on, and our upstairs loft and bathroom fans don't seem to be working
Potter Place Rd. in Fort Mill
I live in a townhouse and the wall between us seems to be very thin. I can hear the surround sys. I hear them talking from the next door townhouse. I cant hear what they are saying but still. I hear them walking on their wood floors. I would like a free estmate,
Oleander Branch Ct in Fort Mill
AC seems to be not generating cold air Additional information: Date requested: 09/29/2017
Molokai Drive in Fort Mill
Just need service for winter
Warpers Lane in Fort Mill
There is brown water stain around the air vent in our kitchen. Need diagnosis to identify where the leak is coming from. The house is a one story with an attic above.
Talon Point Circle in Fort Mill
Looking to get an estimate for insulating a walk out basement
Woodridge Dr in Fort Mill
Just bought house and want to schedule a tune up of hvac
in Fort Mill
Air condition isn't working at optimal
Brixham Pl in Fort Mill
AC compressor is gone. we need installation for heat and air unit
Executive Pt in Fort Mill
We are looking to add to or replace the insulation in the attic - there is currently blown in insulation.
Savannah Place Drive in Fort Mill
Looking to replace downstairs 3 ton AC unit. Looking for an estimate on cost.
Farmstead Ln in Fort Mill
Gardenia St in Fort Mill
My house was built is 2008. I feel like the electric bills are higher than than should (or could) be. I would like to get an energy audit analysis to see where we could improve.
Norwich Road in Fort Mill
Looking for a quote to replace 2 AC units - one 2.5 ton unit and one 3 ton unit
Williamson Street in Fort Mill
Calling with All Betters Homes North Carolina. Requesting an estimate for crawl space encapsulation with some moisture. Customer will call back to set an appointment.
Serving the following Fort Mill, SC zip codes
29707, 29708, 29715, 29716