To adjust your garage door s side mounted springs first open your door fully and secure it in place with a c clamp below the bottom roller.
Tighten garage door torsion spring.
The article provides installation instructions for springs and adjustment information torsion spring information.
This can make the other parts of the garage door last a much longer time.
It may take a few trips up the ladder but resist the urge to tighten your door too quickly this can lead to busted springs and serious injury.
A quarter turn at a time will do it.
Once your garage door is secured remove the spring hook from the track hanger which will allow you to move the hook and adjust the spring s tension.
I have been in construction most of my life and i personally know a few garage door installers.
Remove the winding bars and repeat the process on the other torsion spring before releasing the c clamps and testing the door.