Service Area

We’ve Got You Covered Key Heating & Air Conditioning, Inc., is proud to serve New England. We have installed and serviced heating and cooling systems for customers in New Hampshire, Massachusetts and Maine. Here are some of the communities where we’ve brought our expertise: Service Call Areas: New Hampshire Atkinson Barrington Brentwood Chester Danville Deerfield […]

Safety & Efficiency Membership Program

Peace of Mind Key understands that your home’s heating and cooling systems are an investment. Our Safety & Efficiency(S&E) Membership Program will enhance the safety and extend the life of your residential heating and cooling systems. To ensure your complete peace of mind year round we offer, with the partnership of Honeywell, a monitoring service […]

Maintenance Department

We’ve Got You Covered Our factory trained technicians at Key service all brands of equipment. Whether your home heating and cooling system needs a repair, cleaning or a tune-up, we are here to help keep you safe. We use a flat-rate pricing system that takes the guesswork out of your bill. Our pricing includes up-front […]