For 99 years, GSM Services has been the trusted choice for AC repair, HVAC replacement, installation, and maintenance services in Mecklenburg County, NC. Our certified technicians deliver fast, reliable service and honest, upfront pricing. We're dedicated to improving your home's comfort, air quality, and energy efficiency. Enjoy easy online scheduling, instant online quotes, and FREE service calls with repairs!
The cost of a new Air Conditioning system in Mecklenburg County, NC typically ranges from $8,000 to $20,000+ in 2026, depending on the size of your home, the efficiency of the system, ductwork requirements, and installation complexity.
Want to know what a new AC may cost for your home? Use our HVAC Cost Calculator to get instant Air Conditioning replacement pricing in Mecklenburg County, NC. Compare system options, estimated monthly payments, and personalized HVAC installation costs in minutes—before scheduling an in-home consultation.
Get your free quote online in seconds!
Looking for a New Air Conditioning System? Our licensed HVAC installers specialize in high-efficiency heating and cooling systems designed to improve comfort, indoor air quality, and lower energy costs. We'll help you compare your options and find the right system for your home. Schedule your free, no-obligation consultation and quote today!
Need AC repair in Mecklenburg County, NC? GSM Services provides fast, reliable AC repair for all makes and models. Our licensed HVAC technicians deliver expert service, honest pricing, and quality repairs you can trust. Plus, we waive the service call fee with repairs! Schedule online now for fast AC repair or service!
GSM Services' professional duct cleaning removes dust, debris, and buildup throughout your entire duct system—not just the vents—to help improve indoor air quality and HVAC performance. We also inspect your ductwork for leaks or damage and include a disinfectant treatment for a fresher, cleaner home. Get your free instant online quote today!
GSM Services is your trusted local insulation company in Mecklenburg County, NC. We install attic, wall, crawlspace, floor, garage, and whole-home insulation to improve comfort, indoor air quality, and energy efficiency. Our insulation experts help homeowners lower energy bills, reduce hot and cold spots, and enjoy a more comfortable home year-round. Schedule your free insulation inspection online and receive a custom, no-obligation quote.
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Our Commercial Roofing Division of GSM Services working on a multi-leve roof with rooftop HVAC units and drains.
Dr. Energy Saver Charlotte received an award at the Team Basement Systems International Convention for ranking among the Top 10 Dr. Energy Saver Dealers!... [Read more]
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 that's 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.
We installed a higher efficiency GSM TruComfort Signature Series system for this home. We also included a Nest Protect (Smoke and Carbon Monoxide Detector) which provides heads up alerts by voice and message to your smartphone.
Serving - Greater Charlotte Area - Mecklenburg County, Gaston County, Lincoln County, Cleveland County, & York County
Knee Wall Insulation with Super...
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Furnace in crawl space
Furnace Tune Up in Charlotte, NC
Heat pump replacement in Charlotte
2026 Best Heating & AC Company
GSM Services Named 2026 Best of Gaston Winner for Best Heating & Cooling Company.
2025 Best Heating & Cooling Company
GSM Voted 2025 Community Choice Award Winner.
2024 Community Choice Award Winner
Voted Best Local HVAC Company in 2024.
2023 Community Choice Award Winner
Voted Best Heating & AC Company & Best Home Service Provider in the county.
Best of Gaston 2022
GSM Services won Best Heating & Cooling Company and Top Place To Work in the County!
Best Contractor to Work For - ACHR News
Named Best Contractor to Work For by ACHR News, a leading national industry publication in 2021.
Top Place to Work in Charlotte
GSM was recognized as one of the Top Places to Work in 2019 by The Charlotte Observer.