How to Replace a Broken Garage Door Spring

How to Replace a Broken Garage Door Spring
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If your garage door’s spring is broken, it could be dangerous and require professional repair. In this article we will walk you through the steps of replacing your garage door spring and how to ensure that it is done correctly. We’ll also show you how to re-wind the new spring properly, so that it doesn’t become too tight and break again sooner than it should.

Broken garage door spring repair: Determine whether your garage door operates on extension or torsion springs. Lighter, single garage doors operate on extension springs while larger, heavier sectional doors use torsion springs. Once you know which type your door uses, purchase the correct replacement springs from your local hardware store. Ensure that you get the right length, size and weight capacity of springs for your door.

Broken Garage Door Spring Repair: When and How to Fix It

Once you have the new replacement springs, carefully release all tension in the old springs. Unwinding torsion springs can be dangerous, but using winding bars rather than screwdrivers will help to reduce the risk of injury. Once the springs are fully released, carefully disconnect them from the cable drums at each end of the spring bar. Slide the cable drums off the ends of the spring bar, and then loosen the setscrews on the center bracket at the middle of the spring bar to remove the bar itself.

During the replacement process, carefully examine each spring for damage or signs of wear and tear. Make sure that you’re installing the proper size and weight capacity of springs for your garage door, and that you’re winding each one according to the manufacturer’s recommendation (usually about 30 quarter-turns for a 7 foot door). Reconnect the cable drums and then reattach the door panels.

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