Mother Earth Has Your Answer

Request an AppointmentKey Heating and Air Conditioning is the largest residential geothermal company in New England.

Our environmentally-conscious, award-winning company offers geothermal heating and cooling systems to customers who want an alternative energy source that is environmentally-friendly and sustainable. In fact it’s estimated that converting to a geothermal heating and cooling system will reduce your household energy emissions by up to 70 percent.

Simply put, geothermal heating and cooling systems take advantage of the near constant temperatures of the earth to heat and cool your home.

Geothermal is a great choice for both heating and air conditioning your New England home. It basically recovers the heat from the earth and repurposes it to heat and cool your home.

At Key, we sell, install and service geothermal heating and cooling systems, including geothermal heat pumps and radiant floor heating systems.

How it works


Geothermal heating and cooling systems use the earth’s nearly constant temperatures to heat and cool your home. In the cooler months, the geothermal system transfers the heat from the earth to your forced air heating system or water radiator system. In the warmer months, the geothermal system works in reverse to keep your home cool.

Brands we carry:

  • Bosch Geothermal
  • Bryant
  • Carrier
  • Climate Master
  • Geocomfort
  • Geosystems
  • Hydron
  • Tetco
  • Waterfurnace