Garage door springs come in two styles.
How to instal a garage door spring.
In the past extension springs were safer to install but didn t have containment cables running through the center of the spring.
You may need to use a 2x4 or some other object to pry the garage door open.
Unplug the garage door opener and clamp the door to the track.
Use locking pliers or a c clamp to secure the door to the track to keep it from opening when you release the tension on the springs.
Weigh your garage door.
Torsion see above which mounts on the header above the door and extension photo 1 which floats above the upper roller track.
Some garage door openers have a neutral position for the trolley disconnect.
The doors with two springs are easy to replace.
There are two types of garage door springs.
This can still be done when only one extension spring is broken.
A pair of new springs cost about 25.
Disengage the opener from the door.