Bud M.
10/20/2025
Matt did a great job on the service of my gas furnace and tankless gas water heater. Very professional and knowledgeable and helpful. The office scheduling went well and is a pleasure to deal with.
Key Heating & Air Conditioning
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8 Continental Dr
Exeter, NH 03833
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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Reviews
3.547 reviewsMichael 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...
Ryan T.
11/11/2025
Justin is very knowledgeable about all aspects of our geothermal system and was very helpful in answering all of our many questions. Key Heating and Cooling has also been very responsive to our...
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
Skip ..
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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