Get it right the first time.
Replacing a garage door extension spring.
Disengage the broken extension spring one end at a time.
Open the garage door to remove all spring tension and clamp it in place.
Disengage the opener from the door.
Replacing garage door extension spring safety cable.
The easiest way to do this is to take the broken spring to a local garage door dealer or home improvement center so they can help you find an exact match.
Purchase new garage door extension springs.
Unplug the power cord to your garage door opener.
The new spring s diameter length and wire size or gauge must be the same as your old spring.
With a second set of hands to help you along manually lift the door off the ground and lock.
At the far end of the door rail.
Some garage door openers have a neutral position for the trolley disconnect.
The following steps will walk you through how to replace an extension garage door spring.