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Reviews From Hickory
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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
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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

Company Awards

Furnace Installation & Repair Company Serving Hickory, NC

Happy Customers Surrounding Hickory, NC
Work Requests

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

Hickory'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 Hickory 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 Hickory, 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 Hickory'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!

Case Studies From Hickory
This customer contacted us through Duke Energy's rebate program to find ways to help them make their house more efficient and comfortable and save...
Work Requests From Hickory, NC
in Hickory
Looking to have my house insulated.
in Hickory
Spray foam insulation
Burke County Line Rd in Hickory
My house is not insulated and my a/c runs all day
in Hickory
Air infiltration in unfinished basement
Corral Dr in Hickory
Need estimate on crawl space project.
Shiloh Church Rd in Hickory
Your guys were great-courteous, diligent and careful. I coughed alot after they left. I assumed I was catching a cold. I went to Winston Salem and my cough went away while I was there. When I came home yesterday afternoon my cough returned almost immediately. It prevented my sleeping. There appears to be a thin layer of grey dust inside the house. I cleaned the heat pump return over the weekend and it has accumulated grey dust on it. There is dust on the window sills, and on the furniture. I'm returning to Winston Salem this morning, and I'd appreciate your calling me when you have time. I'm sure there's no reason for concern. I don't mind cleaning the dust at all. I'm just concerned about my cough and my silly animals. Thanks. Paulette Davis (828) 495-7951 (land line) (828) 640-0064 (cell)
in Hickory
I have a Generac Natural gas home generator and it is leaking oil. Do you service these generators?
in Hickory
I need a naw AC unit and wanted to have an audit done before getting quotes to know more about what I should expect for a replacement. Also want to know if attic insulation is adequate. And anything else pertaining to making the house more energy efficient.
in Hickory
Need additional insulation attic & duct sealing in basement
in Hickory
Our ac isn't keeping up. We have a ranch with a full basement. The basement is cold and the main living area is 80 degrees. We would love to see where else we are losing energy.
in Hickory
I'd like a quote on how much it would be to have more insulation blown into our attic.
in Hickory
Looking to put cellulose insulation in our attic.
Falling Creek Road in Hickory
When it rains, it leaks into my crawlspace. And the insulation isn't very good.
Gold Creek Estate Dr in Hickory
Service Master of Hickory had to remove all the insulation on my sub floor in the crawl space under the house in a water heater rupture situation. It is now time in the process to replace that insulation as they should have finished the mold remediation sometime today. They recommended that I contact you for the insulation replacement, so I guess I need an estimate. We are not currently living in the house but I've given you my cell so we can arrange a time. Thanks,
in Hickory
High Electric Bills.....we need an energy assessment to see if there is something that can be done to lower the energy bills.
Village Circle in Hickory
Heat and air lost water heater heat pump old heat adjustment
Brookstone Dr in Hickory
I noticed some daylight coming in around some of my doors, I do not know where else we may be losing heat/air, and wasting energy.
Westridge Dr in Hickory
I am only interested in getting estimate on a tankless water heater, we have a 1650 ft ranch with 2 baths, the area under the house is low where our current water heater is , so it is too small, but no room to put a larger one. could you give us an estimate, we live in hickory. It may be a few months before we are at a point to consider starting work.
Players Ridge Rd in Hickory
Had trench and sump pump installed because of some water leakage into the crawl space around some sections of the foundation. Maybe 2" of water near the foundation only. Now I would like to seal the crawl space. Need quote
in Hickory
I am considering purchasing a home that has high energy bills. The heating and air condition system for the home is old. Before purchasing the home I would like to have a Home Energy Audit to determine what it will cost to update the system/home to be more energy efficient.