The springs are located at the top inside part of the garage door.
How to tighten overhead garage door springs.
The torsion spring helps the garage door open and close easily.
If it was opening too quickly move it to the next lower hole.
Retest the door balance as you did in step 1.
How to safely adjust your garage door spring.
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.
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.
Once the spring is free of tension remove from its track hanger.
There are two torsion springs at each side of the garage door.
Adjust the springs on both sides of the door the same way.