Geothermal.contractors

GEM Plumbing & Heating is a Rhode Island-based multi-trade contractor founded in 1949 with a dedicated Raynham, Massachusetts office at 375 Paramount Drive. Operating across Rhode Island and Massachusetts for over 75 years, GEM offers geothermal heating and cooling systems — including installation, replacement, maintenance, and repair — alongside full plumbing, electrical, and HVAC services. The Raynham branch and additional MA offices in Plymouth and Harwich allow the company to serve southeastern Massachusetts and Cape Cod markets directly. GEM holds Massachusetts licenses including plumbing license 12980-PL-M and construction supervisor license RC-148071, carries NATE certification, and is recognized as a Carrier Residential Factory Authorized Dealer and Mass Save Heat Pump Installer Network member. The company employs more than 700 technicians operating 500 service vehicles across the region. Verified active operator per askgem.com (Bundle 4 import 2026-05-28)