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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
energy saving tips
home energy audit
home energy conservation

Electrical
generators


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
ductwork repair
ductwork installation
ductwork cost
furnace ductwork
hvac ductwork
Duct Cleaning

Company Awards

Dependable Furnace Service & Installation Contractor Serving York, SC

GSM did a terrific job at my house....
Happy Customers Surrounding York, SC
Testimonials
Reviews
Work Requests

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

Reviews From York
Testimonials From York
I already referred you to my neighbor.
Testimonial by Jeffery E. from York, SC
GSM did a terrific job at my house. I am very pleased ...
Testimonial by Simon & Ellen S. from York, NC

Fast & Affordable Furnace 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

York'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 York, 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

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 York
This is the question that most homeowners don't want to think about.  No one wants to think about their...
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
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 York, SC
Miami Cir in York
Installation problems, air holes in house
Ivy Creek Ford in York
Would like to get a quote to install radiant barrier
Fallowbrook Forest in York
Cooling costs
Falling Water Dr in York
Air handler in attic makes a constant buzzing and system needs duct work improvements Additional information: Date requested: 04/20/2018
Campbell Rd. in York
Estimate for attic insulation.
Cricket Run in York
Our heat went out Saturday evening. It's an older Goodman unit - at least a dozen years old. It has a small freon leak and we've had both the AC and heat portions of our HVAC system repaired twice since we took ownership of this home 18 months ago. Interested in possible replacement.
Pondside Ct in York
Looking at replacing existing HVAC system for 2nd floor.
Thicket Run in York
Low freon
Enchanto Rd in York
Several neighbors have had poor results on energy audits and we were encouraged to check our home.
Stone Quarter Ct in York
Just curious to see if there are easy fixes/adjustments I can make in the house.
N Congress St in York
My furnace won't switch on.
Carved Oak Ct in York
I would like to get an estimate on a replacement whole house unit. Currently we have gas, heat pump unit that is 17 yrs old and its past time for it to be replaced. We would like to have someone that could take some time with us, answer questions, learn about the different units, find the best one for us etc Do you come out on weekends to give estimates? If we have to wait a couple of weeks for someone to come out, that will be fine. We plan on replacing within 6 months. Thank You Diane Robinson
Chipmeadow Lane in York
Our air conditioner unit is not blowing cool air and the outside fan is not working at the moment. I have breathing problems and this is making weak.
Stone Quarter Ct in York
I have two AC units (upper/lower), 9 years old. Lower is not keeping up this summer. It is keeping the house ~80-83 degrees but wont go under 79. This happens about every 2-3 years with these units. Typically need coolant, but I'd like to make sure they're clean and nothing else is wrong
Peaceful Creek Drive in York
Ac unit not putting out cool air
Lunde Ln in York
Air is blowing out of the vents but it is not cool. I can't hear the AC unit running on the outside either. The thermostat is set to 74 and it is now 80 degrees inside.
Georgia Avenue in York
Would like a estimate for crawlspace insulation and removal of some mold.
Rocky Grove Glen in York
Interested in an estimate on the Super Attic Insulation.
College St in York
New heating//ac system
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