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Reviews From Hickory
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

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
Best of Gaston 2020
GSM Services was incredibly honored to win multiple titles this year for the 2020 Best of Gaston Awards! Thank you... [Read more]
Top Place to work Charlotte 2019
GSM was voted as one of the top places to work in 2019 by the Charlotte Observer.... [Read more]
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]
More Awards

Professional Heating & Air Conditioning Repair in Hickory, NC

The technician who came to my home was very corteous and answered all my questions promptly. The work was completed...
Happy Customers Surrounding Hickory, NC
Work Requests

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Fast & Affordable Heating Service Specialists in Hickory, NC

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

Hickory'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 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

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
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
Project Location: Hickory, NC
The front attic of my house needs more insulation, closet and office which share walls with that attic tend to get hot in the summer and cold in the winter. Might also need additional insulation in the back attic.
Project Location: Hickory, NC
Looking to have my house insulated.
Project Location: Hickory, NC
Spray foam insulation
Project Location: Hickory, NC
My house is not insulated and my a/c runs all day
Project Location: Hickory, NC
Air infiltration in unfinished basement
Project Location: Hickory, NC
Need estimate on crawl space project.
Project Location: Hickory, NC
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)
Project Location: Hickory, NC
I have a Generac Natural gas home generator and it is leaking oil. Do you service these generators?
Project Location: Hickory, NC
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.
Project Location: Hickory, NC
Need additional insulation attic & duct sealing in basement
Project Location: Hickory, NC
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.
Project Location: Hickory, NC
I'd like a quote on how much it would be to have more insulation blown into our attic.
Project Location: Hickory, NC
Looking to put cellulose insulation in our attic.
Project Location: Hickory, NC
When it rains, it leaks into my crawlspace. And the insulation isn't very good.
Project Location: Hickory, NC
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,
Project Location: Hickory, NC
High Electric Bills.....we need an energy assessment to see if there is something that can be done to lower the energy bills.
Project Location: Hickory, NC
Heat and air lost water heater heat pump old heat adjustment
Project Location: Hickory, NC
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.
Project Location: Hickory, NC
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.
Project Location: Hickory, NC
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
Serving the following Hickory, NC zip codes
28601, 28602, 28603, 28601, 28602, 28603