A reliable electrical system is the backbone of your home. Key Heating & Air Conditioning provides a variety of electrical services including repairs, installation, and maintenance so that you're never left in the dark.





  • Electrical Repair and Installation: We handle all of your electrical needs, from minor repairs to full installations. No matter the age of your house or the complexity of the project, we have trained technicians to get the job done.


  • Electric Panels: We can replace or reconfigure your old electric panel to make sure your homes power needs are sufficiently and safely met. 


  • Safety Inspections: Feel safe knowing your smoke & carbon monoxide detectors are correctly multi-linked and up-to-code.


  • Indoor Lighting and Outdoor Lighting: Brighten things up with new indoor and outdoor lighting fixtures for your home.


  • Whole-House Surge Protection: Ditch the unsightly power surge protectors attached to every outlet and upgrade to a whole-home surge protection system.


  • Home Generator Systems: Be prepared for anything, anytime with the help of a home standby power generator.

Contact Us

Phone: 603.436.8811

Text:     938.444.4537

Email Us


8 Continental Dr. Exeter, NH 03833

6 Central Ave. Wolfeboro, NH 03894

69 Main St. Alton, NH 03809

Mailing Address

8E Continental Dr.

Exeter, NH 03833

© 2020 by Key Heating & Air Conditioning Inc.