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A garage door opener is a mechanical device that makes life easier. Because of this device all you have to do is press some buttons in your garage door remote while you are in your carand the garage door opens so you can just drive in. Garage openers are important so if they malfunction garage door repair for your opener should be requested immediately. Garage door openers are of four types. The chain drive opener, which is the most affordable, utilizes a metal chain that moves the garage door up and down the garage door tracks. Similar to this type is the belt drive opener, which uses a heavy rubber belt instead of a metal chain. Screw drive openers on the other hand have threaded rods that likewise move the door up and down the tracks. The fourth type is the computer controlled drive, which is installed directly above the door. More Info
