Geothermal.contractors

Nerthling's Heating & Air Conditioning has served Erie and northwest Pennsylvania since 1952, founded by Carl Nerthling and now operated by Dave Straub as a family-run business. The company holds Lennox Premier Dealer and Carrier Factory Authorized Dealer status — the first Carrier FAD in the Erie area — along with a Mitsubishi Diamond Dealer designation and NATE- and EPA-certified technicians. Geothermal heat pump installation is offered alongside residential and commercial HVAC, plumbing, electrical, and indoor air quality services across Erie County. The company installs ground-loop geothermal systems designed for energy savings of 30–70 percent over conventional fuel-fired heating and 20–50 percent over air-source cooling, with loop systems engineered for a 50-year service life. Licensed in Pennsylvania (HIC #8279) and rated A+ by the Better Business Bureau. Verified active operator per https://nerthlings.com/heating/geothermal + https://nerthlings.com/about (PA import 2026-06-01)