Providing professional HVAC services throughout Niagara and Erie county since the 1950s. Gray Furnace was established by Mr. Neal Gray in 1952, working out of his parents old chicken coops. Richard Swearengen took over Gray Furnace Service in 1967, who worked long hours to build the business it is today. Now two generations later the business has grown and expanded in the HVAC field, providing reliable, responsible quality workmanship for 62 years. We offer 24/7hour service, Free estimates and second opinion's.

We install new heating and cooling equipment for all residential and commercial properties. We diagnosis and service all make and model heating and cooling equipment. We specialize in new construction and design of HVAC systems.  Need a new hot water tank? We install new hot water tanks and tankless water heaters, whole house humidifier's and air cleaners (HEPA & electronic) as well as UV lights. Gray Furnace installs water back up sump pumps. We offer air conditioning and furnace tune ups. Gray Furnace always offers free estimates military senior discounts.