Geothermal.contractors

GSM Services has served the Gastonia and Greater Charlotte area since 1927, making it one of North Carolina's longest-established HVAC contractors. Now led by third-generation co-owners Steven and Joel Long, the company operates from 407 E Long Ave in Gastonia and covers residential HVAC, commercial HVAC and roofing, insulation, and crawl space services across the Carolinas. The residential division — operating under the Dr. Energy Saver brand — installs geothermal heat pump systems for homes throughout the Gastonia, Mount Holly, Fort Mill, and Huntersville area. Their geothermal program includes complete system design and installation, with documented efficiency claims of up to 44% more efficiency than air-source heat pumps and 80–95% hot water cost savings when integrated with a desuperheater. GSM is a WaterFurnace authorized dealer. Same-day service and financing are available. Verified active operator per https://www.gsmsince1927.com/geothermal-heat-pump + https://www.gsmcommercial.com/about-us (Bundle 6 audit 2026-05-29)