The doors with two springs are easy to replace.
How to install garage door spring.
There are two types of garage door springs.
The general process is simple and safe.
A pair of new springs cost about 25.
In the past extension springs were safer to install but didn t have containment cables running through the center of the spring.
A couple of carabiners can.
Install the new spring reinstall the pulley and reconnect the safety cable and you re done.
Open the door to relieve the spring tension and secure it open with c clamps in the tracks.