Our family owned; award-winning company has been providing the best energy solutions for New England homeowners for over 30 years. We are proud to serve our community from our newest location at 69 Main Street in Alton, NH!
From free home energy assessments to comprehensive maintenance and the installation of all types of heating and cooling, ventilation and air quality systems, geothermal, and home generators, Key Heating & Air Conditioning, Inc. has the professional team to count on for all of your energy needs.
Service & Repairs
Replacements & Installs
Air Filtration & Humidifiers