schedule now

Maximizing Comfort, Air Quality, and Energy Efficiency in Gastonia and Charlotte

With over 97 years of expertise in heating & cooling, insulation, HVAC duct cleaning, generators, crawl spaces, and mold solutions, GSM delivers unmatched quality and expertise to every job. Count on us for top-dog service, including furnace repairs and installations.
schedule service
GSM Services Truck in Gastonia NC
Need Roofing or HVAC Service for your Business?
visit GSM's commercial site
GSM Services Truck in Mount Holly 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

Our HVAC technicians are here to make the Charlotte heat heel. Contact us at (704) 864-0344 for prompt AC or mini-split services.

air quality

We offer doggone good air quality services in Gastonia. Count on our experts for duct cleaning, humidification, and more.

generators

GSM is proud to be the watchdog of your power supply. Our standby generator services ensure Gastonia never spends a day in the dark.

insulation & energy

We’ll quickly sniff out energy waste and subdue it. Whether that means new insulation or air sealing, our Gastonia experts are your solution.

crawl spaces

In Gastonia, we’re the leaders of the pack when it comes to crawl space solutions. We've got you covered, from making the entrance eye-catching to sealing in the heat.

GSM Services has certified HVAC technicians equipped to handle your Furnace installation near Mount Holly NC.
Why Homeowners in Gastonia and Charlotte Trust GSM Services
When it comes to maximizing your home comfort, our team does it all! We offer comprehensive solutions for home comfort, health, and energy efficiency.
We’re just as loyal as our mascot! We’ve been your family-owned HVAC and comfort contractor for over 97 years.
We set out every day to be Gastonia’s best friend. And we have the customer service awards to show for it!
That thing about old dogs and new tricks? Total myth! Our contractors lead the industry with the latest innovations and equipment.
We believe in openness and honesty. With us, there are no surprise charges. You pay what you expect and get paw-some service for it.
Like any well-trained working dog, you can count on GSM. A comprehensive warranty backs all our services.
Not everyone has the bandwidth for a phone call. That’s why we offer convenient online quotes.
Company mascot - Max. Getting ready to clean some ducts in Gastonia NC.
Know the Costs Ahead of Time
It takes 30 seconds (not in dog time) to get a free online, no-obligation quote from us! Click below to access one of our calculators!
Taking the Bite Out of the Costs of Heating, Cooling, and Efficiency
We’re pawsitive you’d prefer to spend your money on something other than furnace or heat pump repair. That’s why we provide you with plenty of ways to save.
free quotes
You shouldn’t be charged for someone to take a look. That’s why we provide no-cost quotes on everything from generator to furnace and AC installation.
get your quote
financing
Most people don’t have the Milkbones for a new air conditioner, standby generator, or crawlspace encapsulation. That’s why we have financing partners to make comfort more affordable.
apply for financing
promotions
With so many services under GSM’s umbrella, there’s always something on sale! Check out our current coupons for deals.
view existing discounts
Trust our techs to service your Heater 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.

At GSM, we enhance your living experience by improving your home comfort, health, and energy efficiency. We're Gastonia’s complete source for home comfort solutions, offering expert services in HVAC and everything from crawl space encapsulations to generator installation.

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

This has carried us from a simple sheet metal shop owned by W. Fred Long to the comfort contractor we are now. We’re paw-sitive you’ll love our service! Call (704) 864-0344 or check out our online contact form to get started.

our values
our history
read our blog
see what our customers are saying
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 97 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.

  • Rooftop Fan on Business in Gastonia
  • Rooftop Fan on Business in Gastonia
  • Rooftop Fan on Business in Gastonia
  • Rooftop Fan on Business in Gastonia
  • Rooftop Fan on Business in Gastonia
who is max?

Guarding your heating & air is our mascot, Max, While also fighting mold, leaks and sealing cracks. Ensuring every home feels cozy and relaxed, Filtering the air, so no allergens attack. With top-notch insulation, warmth never lacks. When it comes to blissful comfort—Max always has your back.

Learn more about Heat Pump 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 the ac 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!
Because he sniffs out air leaks with precision, keeping homes energy-efficient and cozy!