Key Heating & Air Conditioning. proudly serves the comfort requirements of the New Hampshire Seacoast, the North Shore of Massachusetts and Southern Maine communities. We work tight to supply the highest service available at realistic prices. We provide FREE HVAC system inspections to prepare your heating and/or cooling system for all seasons.


Contact Details

  Website
  City Exeter, NH
  Zip Code 03833
  Address 8 Continental Dr
  Phone Number (603) 436-8811

  • I would recommend this business

Our Geo Thermal A/C was acting up. It would not hold temp and kept shutting down. We called Key on 6/28 and with the weather they weren't supposed to come until 7/6 but called this morning cause they had a cancellation. Yahoo!
Walter came and in less then 5 minutes detected a clogged condensate line. 15 minutes later reeeelif ! KEY AND WALTER WAS OUTSTANDING AS USUAL!

Value for money
Service & support
Quality
Location
Overall ratingExcellent

  • I would recommend this business

Richard Chagnon came to our home today to assess a problem we have with our ductwork. Just regarding him, personally, I want to give the highest praise for his great communication skill, calmness, thoroughness, and overall intelligence and knowledge of HVAC matters. It could have been a stressful experience, but it was quite the opposite. Thanks, Richard!!

Value for money
Service & support
Quality
Location
Overall ratingExcellent

  • I would recommend this business

Key is great. For starters, they were able to fit me in last minute while accommodating my crazy work schedule. Also, the technician, Richard Chagnon, was friendly, very knowledgeable, and was upfront about everything. I have used Key in the past and have always had great experiences with them and I will continue to use them.

Value for money
Service & support
Quality
Location
Overall ratingExcellent

  • I would recommend this business

I am a new customer, and I was very pleased with Richard's service and honest information about my heating and AC systems. He showed up on time, was courteous with use of his mask, and cleaned up after inspection. I have some replacements ahead, and on the basis of today's experience, will call them for that work.

Value for money
Service & support
Quality
Location
Overall ratingExcellent

Social Activity

We love to hear that you are seeing our trucks on the road! Thank you for your support. If you are an Exeter Area Chamber Member we just posted a HOT DEAL for you to COOL OFF this summer! Check us out on the Exeter Area Chamber site. #exeterareachamber
Facebook   Full Post ›
Here are a few pics from a job in Ipswich! Happy Monday Everyone!! #whataview #awesomemancave #hvaclife
Twitter   Full Post ›
I posted a new photo to Facebook https://t.co/AGREUPVgjq
Twitter   Full Post ›
Check out that radiant heat! View is pretty good too! #KeyHVAC #hvaclife https://t.co/IFN1DYBstD
Twitter   Full Post ›
Nhsaves chart as of March 1st. Don't wait until they all turn red. Call Key today and find out how you could... https://t.co/QAyy2Dmsvg
Twitter   Full Post ›
Don't wait!!!! Get your Mitsubishi heat pump installed now!!!! Check out nhsaves.com to see that the money pots are all filled waiting to pay out for your new qualified high efficiency system! #mitsubishielectric #rebatemoney #hvaclife
Facebook   Full Post ›
How cool is this! We live all the great products from Honeywell! #keyhvac #lyric #hvaclife https://t.co/nVSw2V2TUG
Twitter   Full Post ›
Boiler Manifold build today in Portsmouth Sheet Metal shop for a home in Cambridge MA! Looks good Matty! Good job! #hvaclife #cambridgema #keyhvac
Facebook   Full Post ›

From Our Website

Our family owned, award-winning company has been providing the best energy solutions for New England homeowners for over 25 years. From free home energy assessments to comprehensive maintenance and the installation of all types of heating and cooling, ventilation and air quality systems, Key Heating & Air Conditioning Inc. has the professional team to count on for all of your energy needs. Our factory-trained technicians, project managers and installation crew have a combined trade experience of more than 150 years in all aspects of the heating, cooling and air quality business.


Key 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 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.