The garage door springs do most of the lifting when it comes to lifting your garage door. There are large amounts of stress put on these springs, and eventually they break down. If it's not lifting properly, chances are you need a new spring. Here are some simple tips to see if your garage door springs are broken.
The door is only opening a couple of inches - then stops.
A loud bang went off when opening the garage door.
It's visibly broken - there's separation or gap in the spring.
If any of the above happened, your spring likely needs to be replaced. The springs are vital to making your garage door lift. Without them it's impossible, the large amonut of weight and pressure over time the springs break.
