Contact Us For
An Estimate!
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

HVAC Systems
air conditioning contractors
air conditioning systems
boiler heating 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 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

Before and After Pictures from Mecklenburg County
Heatpump replacement in Charlotte

Heatpump replacement in Charlotte

Before After
Heatpump replacement in Charlotte Heatpump replacement in Charlotte

GSM Services replaced a 19 year old heatpump split system with a high efficiency GSM TruComfort Pro system.

Furnace in crawl space

Furnace in crawl space

Before After
Furnace in crawl space Furnace in crawl space

On this heating (PTU) precision tune up our Service Advisor, Thim performed maintenance and cleaned this furnace to ensure that the customer's comfort was at it's full potential.  

As you can see - cleaning and proper maintenance of your system is necessary.  Crawl spaces can be nasty, wet, dirty, moisture driven places that can hurt your heating and cooling system.  Having a scheduled tune up twice a year on a energy savings maintenance agreement (ESA) can prolong the life of your system.


Heating System Precision Tune Up - Charlotte

Heating System Precision Tune Up - Charlotte

Before After
Heating System Precision Tune Up - Charlotte Heating System Precision Tune Up - Charlotte

Make sure your heating system is cleaned, precision tuned and ready for winter. Comfort and peace of mind this winter for only $128!

During this visit your service advisor tightened all electrical connections, verified all high voltage levels, verified all control voltage levels, tested all motors and compressor ( if applicable)  to ensure amp draws are within proper range, and inspected all safeties for proper operation. We verified all start assists were within factory recommended range, inspected ductwork, and verified input and output levels on gas valve. We verified temperature difference across evaporator coil or heat exchanger, and visually inspected burners, and heat exchanger. We verified proper operation of auxiliary heat strips (if applicable). We inspected all fan wheels and blades for debris, cracks, balance, vacuumed out burner and blower compartment, and verified thermostat operation. We changed air filters if covered by the agreement, and cleaned up around equipment after the precision tune up was completed. We will also be checking all gas appliances to ensure that there are no carbon monoxide dangers at this time. We will check fire extinguishers, dryer vents, and test the batteries in all smoke detectors and carbon monoxide detectors. Your Service Advisor may have listed repair or system enhancement options for future reference that could potentially enhance your comfort, health & safety, extend the life of the equipment or help prevent excessively high utility bills.

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

GSM Services serving Mecklenburg County, NC

Happy Customers Surrounding Mecklenburg County, NC
Work Requests

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

Reviews From Mecklenburg County
Testimonials From Mecklenburg County
I am very happy with all the crazy work these poor guys had to do!
Testimonial by D N. from Charlotte, NC
I want to thank not only Shawn but Wayne King and others who were involved in assisting us. GSM went well above and beyond the call of duty to help us on short...
Testimonial by Sarah B. from Charlotte, NC

Insulating Your Mecklenburg Home

You can have a comfortable home while lowering your energy bills at the same time. Our professional crew knows the right insulation to install in the different areas of your home.

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 & HVAC Services

Old, failing Heaters and Air Conditioners are a serious issue in your home. We are your local experts for both repairing your current system or installing a new, energy-efficient unit.

  • Gas Furnace
  • Oil Burners
  • Geothermal
  • Electric Furnaces
  • Heat Pumps
  • Wood Heating
  • Forced Air Heaters
  • Gas Boilers
  • Oil Boilers
  • 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

Home Energy Audits

Our professionals provide comprehensive home energy audits  identifying the areas of your Mecklenburg home that need improvement, showing you exactly what was found and giving you a prioritized list of list of home energy tasks.

Evaluations Include:
  • Air Leak Inspection 
  • Thermal Scanning
  • Detailed Explanation    

  • Blower Door (Infiltrometer) Test
  • Insulation Level Check
  • Appliance & Lighting Checks

Get A FREE Quote Today!

Case Studies From Mecklenburg County
Our Commercial Roofing Division of GSM Services working on a multi-leve roof with rooftop HVAC units and drains.
Job Stories From Mecklenburg County, NC
Air Sealing, Insulation and Radiant Barrier - In your Attic

Check out this timelapse of an installation of radiant barrier and insulation performed in an attic to keep your home comfortable.  We first air sealed all cracks and holes that lead to your rooms of your home.  We want to make sure to keep the good air in and the bad air out.  Weather it is summer or winter - air sealing and insulating your attic can keep you comfortable and your power bills low!  Interested, Ask us how! Call us for a free home energy audit! 1-800-New Heat 1-800- New Cool


Serving - Greater Charlotte Area - Mecklenburg County, Gaston County, Lincoln County, Cleveland County, & York County

Air Sealing, Insulation and Radiant Barrier - In your Attic - Photo 1
Attic Installation of New Heating System

Installations of new heating and air conditioning systems aren't always the easiest.  In fact, it is also hard to take good pictures as well.  Attic working conditions don't leave the best of senerios for working, our guys installed this one on a 86 degree day, which in an attic gets over 120 degrees (and thats a cool attic).  Attics involve tight working spaces, hot temperates, and also hard access. 

These photos are from a recent job showing the working situations that we do on a daily basis.  Imagine weaving duct work through this attic all while not falling through the ceiling.


Attic Installation of New Heating System - Photo 1Attic Installation of New Heating System - Photo 2Attic Installation of New Heating System - Photo 3Attic Installation of New Heating System - Photo 4
Serving the following Mecklenburg County, NC zip codes
Charlotte 28223, Charlotte 28270, Charlotte 28216, Charlotte 28258, Charlotte 28209, Charlotte 28246, Charlotte 28297, Charlotte 28202, Charlotte 28235, Charlotte 28284, Charlotte 28228, Charlotte 28274, Charlotte 28220, Charlotte 28265, Charlotte 28213, Charlotte 28254, Charlotte 28206, Charlotte 28242, Charlotte 28289, Charlotte 28232, Charlotte 28280, Charlotte 28224, Charlotte 28271, Charlotte 28217, Charlotte 28260, Charlotte 28210, Charlotte 28247, Charlotte 28299, Charlotte 28203, Charlotte 28236, Charlotte 28285, Charlotte 28229, Charlotte 28275, Charlotte 28221, Charlotte 28266, Charlotte 28214, Charlotte 28255, Charlotte 28207, Charlotte 28243, Charlotte 28290, Charlotte 28233, Charlotte 28281, Charlotte 28226, Charlotte 28272, Charlotte 28218, Charlotte 28262, Charlotte 28211, Charlotte 28250, Charlotte 28204, Charlotte 28237, Charlotte 28287, Charlotte 28230, Charlotte 28277, Charlotte 28222, Charlotte 28269, Charlotte 28215, Charlotte 28256, Charlotte 28208, Charlotte 28244, Charlotte 28296, Charlotte 28201, Charlotte 28234, Charlotte 28282, Charlotte 28227, Charlotte 28273, Charlotte 28219, Charlotte 28263, Charlotte 28212, Charlotte 28253, Charlotte 28205, Charlotte 28241, Charlotte 28288, Charlotte 28231, Charlotte 28278, Huntersville 28078, Huntersville 28070, Matthews 28105, Matthews 28106, Cornelius 28031, Davidson 28035, Davidson 28036, Pineville 28134, Paw Creek 28130, Newell 28126