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In order to repair a garage door, repair or replace the trim, frame and track. Garage doors can be affected by a few specific problems, so repairing a garage door depends on what needs repaired, such as the door, opener or frame.


While some garage door problems can be fixed by a single person, the heavy weight of garage doors might demand extra help. If a panel needs to be replaced, a second set of hands is almost certainly necessary.


Malfunctioning circuit boards, a power surge or a thunderstorm are potential causes of a garage door opening by itself. In rare cases, a neighbor may accidentally open a homeowner's garage door, especially if the door has been operating for more than 20 years already.


The reasons a garage door might not open include broken springs, low batteries in the remote control and worn cables. Broken springs are a common problem for garage doors. Motors cannot lift garage doors on their own if a spring breaks or snaps. Installing new springs fixes this issue.


Except for repair of the motor and spring, most garage door fixes can be done without a manual or professional help. The level of complexity and process of a repair depends on the nature of the problem. The motor, track and rollers are common culprits of garage door issues.


Some common garage door motor repairs include replacing the main gear and replacing the control board. Both repairs are relatively simple, and parts cost between $20 and $80, as of 2016.


Common problems with garage door openers include problems with the remote control, out-of-adjustment limit switches and problems with the close-force adjustment. Many of these problems are within the ability of the homeowner to fix.


Retailers such as Loews, Wal-Mart, Home Depot and Sears that sell garage door opener systems also generally sell replacement parts. As of 2014, each of these retailers also sells universal garage door opener remotes that are compatible with most garage door opener systems.


Consumers can find a list of top 10 garage openers on the Top Ten Reviews website. The Chamberlain Premium wins the 2015 Gold Award for garage door openers.


Installing a garage door opener is a two-person job that requires removing the old opener, mounting and aligning the new unit and securing the motor. Read all instructions on the new unit before beginning installation.