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.
Retest the door.
If the repairman has to replace parts the price will go up.
Garage door springs are used to offset the weight of the door.
For doors weighing up to 200 pounds and measuring between 6 10 and 7 4 tall light duty hardware is generally used on single car garage doors up to 10 wide but it is also used on up to 16 wide aluminum and light weight steel doors.
How to do a simple adjustment on a garage door opener.
Lift the top rod upward to move the bottom rod until it s flush against the door to adjust the tension in the spring.
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.
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Light duty jamb type.
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.
Adjusting garage door springs is a common repair.
Maximum door weights and sizes.
If the door was closing too quickly move the spring to the next higher hole on the bracket.
In most cases this visit will be a really brief one as adjusting a garage door usually does not take much time.
If you have a wooden garage door then you can trim the door down to make it fit properly.
When garage doors won t close all of the way or they close unevenly spring adjustment may be called for.
Adjust the springs on both sides of the door the same way.
If you don t have a wooden garage door you may be looking at a garage door replacement.
A visit of a repairman typically costs not less than 130 180.
How to do a simple adjustment on a garage door opener.
If it was opening too quickly move it to the next lower hole.
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.