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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
air conditioning installation
air conditioning repair

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

Dryer Vent Cleaning

Before and After Pictures from Kings Mountain
Replace and relocate outdoor units

Replace and relocate outdoor units

Before After
Replace and relocate outdoor units Replace and relocate outdoor units

The outdoor units were replaced, and relocated. The upstairs duct system was also replaced.

Crawl Space Encapsulation - Kings Mountain, NC

Crawl Space Encapsulation - Kings Mountain, NC

Before After
Crawl Space Encapsulation - Kings Mountain, NC Crawl Space Encapsulation - Kings Mountain, NC

Crawl space encapsulation with SilverGlo - Air seal and insulation of the crawl space.



Everlast Crawl Space Door

Everlast Crawl Space Door

Before After
Everlast Crawl Space Door Everlast Crawl Space Door

Provided and installed Everlast Crawl Space Hatch Cover.

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

Kings Mountain, NC's Skilled Insulation, Heating & AC Repair

Your thoughtfulness takes the most simple sentiments and turns them into gestures of kindness and gratitude....
Happy Customers Surrounding Kings Mountain, NC
Work Requests

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

Reviews From Kings Mountain
Testimonials From Kings Mountain
Everyone worked in a very professional and friendly manner.
Testimonial by Jimmy W. from Kings Mountain, NC
Have told many people about GSM and our great service.
Testimonial by William W. from Kings Mountain, NC

Fast & Affordable Heating Service Specialists in Kings Mountain, 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

Kings Mountain'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 Kings Mountain, 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
News & Events From from Kings Mountain
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]
Start 2017 with saving Energy, Money, & the Planet!
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 Kings Mountain, NC
Project Location: Kings Mountain, NC
I'm in the process of finishing an upstairs bonus room, and need to install an HVAC system (central a/c or ductless). Entire space is approx 1200 sq ft carved up into 4 rooms with the largest being 646 sq ft.
Project Location: Kings Mountain, NC
I have an older heat pump that needs replacement. Just looking at options.
Project Location: Kings Mountain, NC
Needing just a routine service of our AC system. Just purchased home and would like it "tuned up". Cleaned well and looked over for any major inefficient operation.
Project Location: Kings Mountain, NC
Need to get a quote for a Whole Home Generator.
Project Location: Kings Mountain, NC
Air conditioning is not blowing cold air.
Project Location: Kings Mountain, NC
Need to get system checked out and estimate for quarterly service.
Project Location: Kings Mountain, NC
Would like a quote for duct cleaning and sealing.
Project Location: Kings Mountain, NC
Some vents are not connected. Older system. Need an evaluation.
Project Location: Kings Mountain, NC
We would like to have additional blow-in insulation placed in our attic.
Project Location: Kings Mountain, NC
Downstairs Unit not Blowing cold, compressor turns on and runs. Upstairs Unit froze up when overworked - currently working.
Project Location: Kings Mountain, NC
Looking for new split system or package unit. Also interested in crawlspace encapsulation
Project Location: Kings Mountain, NC
Need new Heat & Air pump with financing Retired on Disability I 2015 and draw SSI Live on fixed income.
Project Location: Kings Mountain, NC
I need to obtain a quotation to have the air ducts cleaned in our facility.
Project Location: Kings Mountain, NC
Set up existing unit, run 2 ducts and 1 return line. Come back later and check it out when power is turned on.
Project Location: Kings Mountain, NC
AC freezing up
Project Location: Kings Mountain, NC
We purchase a 3000 Sq ft commercial building recently and looking to install Mitsubishi mini-split unit into the office and our shop area.
Project Location: Kings Mountain, NC
When we turn on the AC unit the house is not getting cold and it does not seem like the fan outside has been moving
Project Location: Kings Mountain, NC
I was curious how much just an annual checkup/service and probably freon recharge would be? Our AC seems to be not as cold as usual.
Project Location: Kings Mountain, NC
I would like a price on a Generac generator, installed for whole house backup electric. 1800 square foot coverage. Thanks! Janet
Project Location: Kings Mountain, NC
Foam wall insulation