How To Replace An Extension Spring On A Garage Door

The following steps will walk you through how to replace an extension garage door spring.

How to replace an extension spring on a garage door.

On one piece doors with side springs you open the door to relieve the spring tension and simply swap out the springs on the opener arm mechanism. If both springs are old you should replace them both at the same time. Disengage the broken extension spring one end at a time. Purchase new garage door extension springs.

Once in place disconnect the. 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. Thread the safety cable through the spring and tie it to the vertical bracket. Do not try to remove the extension spring that is not broken when the garage door is closed.

The new spring s diameter length and wire size or gauge must be the same as your old spring. Open the garage door to remove all spring tension and clamp it in place. As a side note you should replace both springs at the same time because your garage door won t close properly if one spring has more tension than the other. At this point you can place the safety cable clip onto the end of the new extension spring.

Detach the cable and thread it around the pulley to free the spring.