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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

Company Awards
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]
Top Place to work Charlotte 2018
GSM Services was voted for the second year in a row as one of the best places to work in... [Read more]
More Awards

Dependable Air Conditioning and Furnace Service & Installation Contractor Serving Clover, SC

Very professional – job completed on time and as stated.  Very courteous....
Happy Customers Surrounding Clover, SC
Work Requests

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

Reviews From Clover
Testimonials From Clover
The installation team was top notch.
Testimonial by Ron M. from Lake Wylie, SC
We were pleased with the service we got from the first call, to the complete job.
Testimonial by Samuel & Nettie L. from Lake Wylie, SC
I have always enjoyed each and every staff member.
Testimonial by Dr. C. from Lake Wylie, SC

Fast & Affordable Heating Service Specialists

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

Clover'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 Clover, 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

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 Clover
Repair or replace your heating and air conditioning system?
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]
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 Clover, SC
Vicinity of Honeysuckle Court in Clover
Need to replace wet insulation.
Vicinity of Honeysuckle Court in Clover
Need to replace wet insulation.
Vicinity of Griggs Rd in Clover
We have an old AC unit that will need to be replaced. The size of the unit seems to small to cool the sq footage of our home.
Vicinity of Poplar Forest Ridge in Clover
Attached garage that needs ventilation. Rooms above garage are hot in summer.
Vicinity of Stonebriar Lane in Clover
Need a quote to install new 3 ton dual fuel system. Prefer at least 15 seer and 95% on gas unit. Current installed unit is not dual fuel. Also want to add 1 register in a master closet.
Vicinity of Battery Circle in Clover
Cooling bills are way too high for this unit. A/C can never keep up.
Vicinity of Bate Harvey Rd in Clover
Would like a home energy audit.
Vicinity of Kentmere Lane in Clover
I need a quote for 3 projects from a home inspection prior to selling my home. There is 2 piece of flashing on the roof that need to be flattened. One transom window needs to be caulked on the outside I have half a dozen or so soffit vents that need to be repaired
Vicinity of Heritage Drive in Clover
Want estimate to replace existing Hvac.
Vicinity of Oakridge Road in Clover
It is 80 degrees in my house. I need to have someone come look at it today and hopefully fix it. Please and thank you.
Vicinity of Drybrook Lane in Clover
Need an estimate on a new system tomorrow 9/1
Vicinity of Meanna Dr in Clover
A/c doesn't seem to cool well down stairs and up stairs after outside temp gets above 85f.
Vicinity of River Oaks Road in Clover
Residential geothermal installation on Lake Wylie
Vicinity of Swaying Branch Lane in Clover
A/C unit is working mostly but at times doesn't
Vicinity of Winding Path Rd in Clover
Old A/C unit from 2002 no longer produces cold air. Prior to its inability to produce cold air, the unit couldn't keep the house cool during summer causing the unit to run all day non-stop. Unit outside also has a bad oscillating vibration creating a very loud noise inside. The house is a 1500+ sqft 2 story house. Single unit, with no splitter. One thermostat downstairs. I purchased the house March of 2017, there is no known information about prior service.
Vicinity of River Oaks Road in Clover
Looking for purchase and installation of a ductless mini-split air conditioner in one room of my house. Specifically interested in a Mitsubishi Electric system.
Vicinity of Autumn Cove Dr in Clover
Looking into spraying the attic
Vicinity of CENTURY DR in Clover
AC repair
Vicinity of Hummingbird Ct in Clover
The mold is my biggest issue
Vicinity of Catawba St in Clover
Need to redo insulation in attic. home was built in the 1950s, and is 1100 square feet. need quote.