Key Heating & Air ConditioningHVAC contractor in Gilford, NH

Key Heating & Air Conditioning is ranked #4 of 109 HVAC contractors in Gilford by CR Score, with 61 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

Key Heating & Air Conditioning is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

Serves Gilford and 11 towns within 25 miles: Laconia, Rochester, Barrington, Northfield, Franklin, East Concord, Somersworth, Moultonborough, Concord, Pembroke and Dover. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

Key Heating & Air Conditioning has a rating of 4.6 from 74 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

Call Key Heating & Air Conditioning on (844) 750-8811. The business is at 69 Main St, Alton, NH 03809, Gilford, NH. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.