The new generation of garage doors are reasonably priced, safe and easy to install and they are no longer a convenience for only a select few. You should consider changing your garage door if it is too old or if it has an old motor or pulley system. The garage doors can be selected by the type of the chain System they use: screw-drive system, chain drive system or computer controlled system. The screw drive system has a mechanism that moves the length of a steel rod; it is a lifting mechanism that is mounted in your garage ceiling. The chain drive system is made of a chain that moves the door along a pair of tracks; this is the most common and affordable system but also has the disadvantage of being extremely noisy. The computer drive mechanism doesn’t use any screws or chains; the system’s body is mounted150
