General Info

For 97 years, GSM Services has stood out in the service industry for our unwavering commitment to customer service, reliability, & quality craftsmanship. As a licensed, insured & certified contractor, we deliver comprehensive comfort solutions tailored to your needs. We are experts in HVAC services, including repair, maintenance, and installation of air conditioning & heating systems, ductless mini splits, heat pumps & furnaces. We also offer specialized services such as insulation, duct cleaning, mold removal, crawlspace repairs, standby generators & home humidity solutions. Servicing Gastonia, Belmont, Shelby, Lincolnton, Charlotte, Huntersville, Ft Mill & nearby cities in NC & SC. We are your trusted partner for all your comfort needs.