Geothermal.contractors

Donnahoo Geothermal Plus HVAC Inc. is a dedicated geothermal and HVAC specialist based at 137 Riverbluff Drive, Inman, SC 29349, serving the Upstate South Carolina region. Founded in 2009 by owner Jerry Donnahoo, who brings over 30 years of heating and air experience, the company installs and services water-source and in-floor geothermal heat pump systems for residential and commercial clients. SC Mechanical Contractor License #110751 is on file with the South Carolina Labor, Licensing and Regulation Contractors' Licensing Board. Geothermal installation services include system design, underground loop work, and equipment commissioning. The company serves Inman and the surrounding Cherokee and Spartanburg County communities, helping property owners adopt ground source heat pump technology suited to the Upstate's climate and terrain. Verified active operator per https://www.facebook.com/DGPHVAC/ + https://tradeproof.net/directory/SC/110751 (SC bundle audit 2026-06-01)