GSM Heating and Cooling

Enjoy Comfort, Clean Air & Energy Savings — HVAC & Home Service Experts in Gastonia, Hickory, Charlotte & Surrounding Areas

GSM Services is your trusted local home comfort expert for 98 years—licensed, insured, and family-owned. We offer fast, affordable air conditioning repair & install services, insulation, HVAC duct cleaning, generators, crawl space, mold & air quality solutions. Book online, get free quotes, and enjoy free service calls with repairs.
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GSM Services Gastonia NC
Boost Comfort, Air Quality and Efficiency
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GSM HVAC Services Charlotte NC
Heating

Don’t let your heating system in Gastonia go to the dogs—call us for expert care! Our experts can handle everything from simple furnace repairs to heat pump installations.

Air Conditioning

We provide expert AC repairs, tune-ups, and replacements on all types of cooling systems. Voted top air conditioning company in Gaston County.

Duct Cleaning

Enjoy cleaner, healthier air with our top-rated duct cleaning services. We inspect, clean and sanitize your duct system to remove dirt, dust, and allergens.

Generators

GSM is proud to be Gastonia’s trusted Generac dealer! Never lose power again with our reliable home standby generators installed by certified experts.

Insulation

Enjoy a range of home insulation options and solutions tailored to your home’s unique needs, maximizing energy efficiency and comfort every season.

Crawl Spaces

Our crawl space services enhance air quality, control humidity, and prevent damage with solutions like mold removal, encapsulations, and dehumidification systems.

Need Commercial HVAC or Roofing Services?

Visit our commercial services site to explore all our HVAC and roofing solutions for commercial properties.

GSM COMMERCIAL HVAC & ROOFING
GSM Services has certified HVAC technicians equipped to handle your AC installation near Mount Holly NC.
Why Homeowners in Gastonia and Charlotte Trust GSM Services
We provide expert services to enhance your home comfort, improve indoor air quality, and energy efficiency—all in one place.
We set out every day to be Gastonia’s best friend. And we have the customer service awards to show for it!
At GSM Services, we lead the HVAC industry with the latest innovations and equipment.
We believe in openness and honesty. With us, there are no surprise charges for Gastonia ac service. You pay what you expect and get paw-some service for it.
You can count on GSM for unmatched warranties that back our services.
Company mascot - Max. Getting ready to clean some ducts in Gastonia NC.
Duct Cleaning & HVAC System Cost
Get a free, instant online quote in just 30 seconds for a new ac system or air duct cleaning services. Fast, easy, and no obligation!
Taking a Bite Out of the Costs of Heating and Cooling
We’re pawsitive you’d prefer to spend your money on something other than air conditioner repairs. That’s why we provide you with plenty of ways to save.
Free Quotes
We offer free consultations and no-obligation quotes on everything from duct cleaning to generators, furnace replacements, and HVAC installations.
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Financing
Enjoy great financing deals on new HVAC systems, generator installations, crawl space encapsulations and more. Our financing options make home comfort in Gaston County affordable.
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Promotions
With so many services under GSM’s umbrella, there’s always something on sale! Check out our current coupons and deals.
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Trust our techs to service your Air Conditioning in Mount Holly NC
GSM Services offers a 100% satisfaction guarantee
Introducing Gastonia’s Top-Dog HVAC and Comfort Contractor
We’ve spent more than three generations perfecting our craft.

GSM Services is Gastonia’s trusted expert for complete home comfort solutions. Since 1927, we've helped homeowners enhance comfort, boost energy efficiency, and improve indoor air quality with reliable HVAC services, insulation, duct cleaning, standby generators, crawl space encapsulations and more.

Unlike contractors who may be hard to reach, we prioritize your comfort and needs. With thousands of satisfied homeowners across Gaston County, we understand the importance of fast, reliable and affordable service.

We’re paw-sitive you’ll love our service! Schedule online anytime or Call (704) 864-0344 to get started.

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Our History
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GSM Commercial HVAC and Roofing Van Driving to Provide Superior Service in Gastonia
Gaston County’s Best Friend

You guys have given us so much in return in our 98 years in business. That’s why we work so hard to give back to our customers by supporting several great causes in Gastonia and Gastonia.

  • GSM Services loves participating in local events like this water race in Gastonia
  • Donating bags and other items to needy women in Gastonia
  • GSM Services had a great time at Lunge 2024
  • GSM Services helping out at local animal shelter in Gastonia
  • Proud recipient of the 2024 Reader's Choice Award
Who is Max?

Guarding your heating and air system is our mascot, Max. This intrepid pup can also be counted on to fight mold and seal leaks and cracks. He sets out every day to ensure every home in Gastonia feels cozy and relaxed. His deft paws filter the air, so no allergens attack. With his top-dog insulation services, warmth never lacks. When it comes to blissful comfort in Gaston County, Max always has your back.

Learn more about Air Conditioner repair in Charlotte NC.
Because he was great at heating hearts and cooling down tempers!
Because he’s the best at tracking down HVAC problems!
Always check your air filters. He knows they can get fur-iously clogged and make your AC unit blow warm air!
Because he didn’t want to be a hot dog!
Because he’s great at sniffing out dust bunnies!
He hates to see people panting! That's why he's happy to help dehumidify your home in Charlotte or Gastonia.
Because he sniffs out air leaks with precision, keeping homes energy-efficient and cozy!