Key Heating & Air Conditioning

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8 Continental Dr
Exeter, NH 03833
+1 (603) 436-8811
http://www.keyhvac.com
Key Heating & Air Conditioning is a full service HVAC Service & Installation Company - For over 30 years we have served the residents of the NH Seacoast, North Shore of MA, Maine Seacoast, and now, the Lakes Region. We are a family owned and operated company that specializes in all the latest technology including geothermal and ductless heat pump systems. We are a design build company and can help you with all your HVAC needs. We provide a comprehensive service membership program and 24/7 emergency service. Our sales department is available for FREE in home estimates and energy assessments. We have an in house training facility and all installation & service technicians are factory trained and have over 200 years of combined experience.

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3.044 reviews
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5/13/2025

Justin did an excellent job!!! Highly recommend him for service on our Mini-Split. Very proficient, with great quality work. An asset to Key HVAC!!!

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Steven B.
10/13/2025

Chris and the install team for my heat pump were prompt, polite and efficient. A pleasure to have them work on my house

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Michael W.
9/25/2025

I scheduled maintenance for my on demand water heater and forced air furnace. The employee showed up without the proper equipment to do any of the work I requested. I had to provide the vinegar...

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Gary B.
9/5/2025

I've been with them since 2018. I'm enrolled in the annual maintenance program, and have had them out for services. Very satisfied, and the HVAC field techs have been super nice and very...

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Joe G.
4/2/2025

We had a problem with our Geothermal HVAC and Key gave us a speedy a response and expert attention. Everyone was terrific from the office staff to the technicians who came to our home. They were...

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United States›New Hampshire›Exeter›Key Heating & Air Conditioning

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