A typical version of an overhead garage door used in the past would have been built as a one-piece panel.The panel was mounted on each side with an unequal parallelogram-style hinge lifting mechanism. Newer versions of overhead garage doors are now generally built from several panels hinged together that roll along a system of tracks guided by rollers.The weight of the door may be 400 lb (180 kg) or more but is balanced by either a torsion spring system or a pair of extension springs.A garage door opener is controlled motorized mechanism for opening garage doors adds convenience, safety, and security often used with a remote or a button on wall.Garageworks offers premium garage door services in Houston. Trust us for expert repairs and installations of overhead and rollup doors.