United Garage Door sells complete lines of C.H.I. and Haas for both Residential and Commercial garage doors. We offer replacement parts for over 80% of garage doors currently in use. United Garage Door is a certified LiftMaster dealer, also carrying Linear openers and Genie replacement parts. Focusing solely in the wholesale market, United has locations in Cleveland, Columbus, and Pittsburgh. We cater to small and large businesses, while still offering parts to the general public.