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Switch to Geothermal Today!

Key Heating and Air Conditioning is one of the largest residential geothermal companies in New England.


Our environmentally-conscious, award-winning company offers geothermal heating and cooling systems to homeowners 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 recovers the heat from the earth and repurposes it to heat and cool your home.


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

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.

Geothermal Heat Pump System

Did you know?

Residential Renewable Energy Tax Credit is Extended Through 2032

Geothermal Vertical Loop

Under current federal law you can take advantage of federal tax credits when installing a geothermal heat pump system in your home.


August 2022 the "Residential Renewable Energy Tax Credit" was extended and is currently set at 30% of your total installation cost through 2032. In 2023, the credit will be reduced to 26% through 2033 and then reduced to 22% through 2034.

CLICK HERE to understand more about FEDERAL TAX INCENTIVES tax for Geothermal

Take advantage of these rebates while available! Contact us today to request a free in-home design consultation.

Checkout More Incentives!

Business representative

Clean Energy Credit Union

Buying an apartment

NHEC Co-Op Loan

Discover Your Savings With Geothermal

Contact Key Heating & Cooling

We serve NH Seacoast, Lakes Region, Southern ME, and Northern MA. Wondering if we serve your town? Check out our list of towns and cities where Key Heating and Cooling travel to! 

For any HVAC inquiries, questions, or to set up a heating & cooling installation appointment, please call: 603.436.8811 or fill out the contact form.

Thank you for your interest! Key HVAC has you covered! We'll be in touch as soon as possible to schedule an appointment at your convenience.

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