If your cables are tightly wound on the pulley but 1 side of the door is uneven then you need to adjust the tension on the torsion spring mounted above the center of the garage door frame.
Single panel garage door adjustment.
Maximum door weights and sizes.
Lift the top rod upward to move the bottom rod until it s flush against the door to adjust the tension in the spring.
In most cases this visit will be a really brief one as adjusting a garage door usually does not take much time.
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.
Without the springs the door is very difficult to lift.
Adjust the springs on both sides of the door the same way.
When garage doors won t close all of the way or they close unevenly spring adjustment may be called for.
If the door was closing too quickly move the spring to the next higher hole on the bracket.
Light duty jamb type.
Retest the door.
How to do a simple adjustment on a garage door opener.
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.
A visit of a repairman typically costs not less than 130 180.
Once the spring is free of tension remove from its track hanger.
How to do a simple adjustment on a garage door opener.
Adjusting garage door springs is a common repair.
You can do this with a jigsaw or a circular saw sanding off the bottom and replacing it in the frame so it sits properly.
Add more concrete to the floor.
If you have a wooden garage door then you can trim the door down to make it fit properly.
If the repairman has to replace parts the price will go up.
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If you don t have a wooden garage door you may be looking at a garage door replacement.