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Leading the HVAC IndustrySince 1927

Heating • Cooling • Insulation Services • Energy Audits • Commercial Roofing • Commercial HVAC

Specially-Designed SystemFor Our Climate

Whole-House Insulation Service& ENERGY AUDITS

We offer 24 Hour Emergency Service

The Heating, Air Conditioning & Home Insulation Expert in Charlotte, Gastonia, Concord

Get Quality Solutions For All of Your Roofing, HVAC, and Insulation Needs

If you want a more comfortable, efficient house or commercial building, GSM Services are the contractors that you've been looking for. We provide expert commercial roof repair and replacement, heating and cooling services, and insulation services throughout North Carolina. With nearly 90 years of experience in the industry, we bring unmatched expertise and quality to all our residential and commercial services.

Keeping your home or business comfortable and energy efficient can be a challenge, but the experts at GSM Services will ensure all your needs are taken care of. We provide complete energy, heating, and cooling services for all residential and commercial properties. If you home is uncomfortable or you are paying too much for your energy bills, contact us today for a FREE consultation. We serve Charlotte, Gastonia, Concord, and surrounding towns in North Carolina.


Uncomfortable Homes Fixed

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Why Greater Charlotte homeowners choose us

In business since 1927

24/7 emergency service

100% customer satisfaction guarantee

GSM Services has been providing high-quality home and commercial improvement services to the Greater Charlotte area since 1927. We offer a wide variety of services for residential and commercial properties, including heating and cooling, insulation, and roof repair and replacement.

With nearly 90 years of experience providing outstanding quality and service, we are the North Carolina contractors you can trust. When you work with us, you can always count on exceptional craftsmanship and fantastic customer service. We look forward to the opportunity to serve you and your home or commercial property. Contact us today for a FREE service estimate!

our service area

We serve the following areas

North CarolinaSouth Carolina Our Locations:

GSM Services
1535 W May Ave
Gastonia, NC 28052

Happy Customers in Greater Charlotte

GSM Services has been serving our customers since 1927, and we're proud of the legacy and reputation that we have built. We strive to develop lifetime customers by providing quality work and the ultimate service experience in everything we do. Our mission is to provide comfort and peace of mind to every customer, on every call - every day.

Our Goal is to help homeowners in Greater Charlotte fix their uncomfortable homes by using our proven methods to improve energy efficiency. Our wide variety of services allows us to create a custom plan based on what issues your home is currently facing.

Completed Home Energy Projects in Greater Charlotte

Furnace PTU - Cornelius NC Before
Furnace PTU - Cornelius NC After

Furnace PTU - Cornelius NC

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.”

Floor Insulation Before
Floor Insulation After

Floor Insulation

removing the bad insulation and encapsulating the crawl space.

Do you need your heating system serviced? Before
Do you need your heating system serviced? After

Do you need your heating system serviced?

Out of sight, out of mind, right?  Wrong... 

During a PTU (Precision Tune Up) our Service Advisors will make sure your heating and cooling system will be cleaned inside and out.  They will also clean any mess that is around your furnace in the attic or crawl space.

Building Performance Institute
National Comfort Institute, Inc.