Key Heating & Air Conditioning, Inc., is a company with a staff of factory trained technicians dedicated to the comfort needs of the communities in which we serve.

We strive to ensure our customers are 100% satisfied, not only with our workmanship, but with the customer service they receive from our trained technicians. Our customers are our number one priority. Read what they have to say about our company.Our combined trade experience exceeds over 150 years in all aspects of the HVAC industry.We have been in operation for a number of years. We are proud to be in excellent standing with the Better Business Bureau and also a member of the Greater Portsmouth Chamber of Commerce.Call us today at 436-8811 or send us an email. Our friendly staff will be glad to answer any questions you have in regard to our service, our products and our reputation.