How To Change A Garage Door Extension Spring

This video will show you how to replace the extension springs on your garage door.

How to change a garage door extension spring.

Open the garage door to remove all spring tension and clamp it in place. At the far end of the door rail remove the spring end from its mounting pin. 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. If both springs are old you should replace them both at the same time.

Purchase new garage door extension springs. Detach the cable and thread it around the pulley to free the spring. The following steps will walk you through how to replace an extension garage door spring. Do not use a digital scale as they often will not respond to the door weight changing as rollers no longer stick to the track.

Place scale under the garage door on the side of the door with the broken extension spring. You may need to use a 2x4 or some other object to pry the garage door open.