Cables
Why Your Garage Door Is Crooked or Hanging Unevenly
A crooked garage door, with one side lower than the other, is a door telling you that its lifting system is no longer even. Garage doors are lifted from both bottom corners at the same time. When one corner gets less support, the door tilts. It may still open, but it is under strain, and using it can turn a small repair into a bigger one.
How a Door Is Supposed to Lift
On a torsion system, a steel cable runs from each bottom corner of the door up to a drum on the shaft above. The spring turns the shaft and both drums wind their cables at the same rate. On an extension system, each side has its own spring, cable and pulley. Either way, the two sides must share the load equally. A crooked door means they no longer do.
Common Causes of a Lopsided Door
A slipped or broken cable
Cables can fray, rust and snap, or they can jump off a drum. When one side loses its cable, that corner sags or drops. You may see a cable hanging loose or tangled near the drum. This is the cause technicians find most often.
A drum that has slipped
Each drum is held to the shaft by set screws. If they loosen, the drum can turn on the shaft and let out cable on one side. The door then hangs low on that side.
One extension spring is weak or broken
With extension springs, each side has its own spring. If one stretches out or breaks, that side loses lift and the door tips.
A roller out of the track
If a roller has jumped the track, the door can bind and twist as it moves. It may look crooked partway up, and it can come out of the track altogether. Our guide on a garage door that comes off track covers that problem.
An uneven floor
Sometimes the door is fine and the concrete has settled. If the door is level when partway up but leaves a gap at one side when closed, the floor may be the issue. A thicker bottom seal can help in that case.
Why You Should Stop Using It
- A door hanging on one cable puts the whole load on the other side. That cable can snap.
- An uneven door can twist panels and bend the tracks.
- The opener keeps pushing against the bind, which wears its gears.
- If the remaining support fails, the door can come down fast.
What You Can Do Right Now
Leave the door where it is. Unplug the opener so nobody presses the button by habit. Take a look from inside, without touching cables or springs, and note what you see. A loose cable, a gap in a spring or a roller outside the track are all useful details when you call. Do not try to rewind a cable onto a drum. The cable is under spring tension and can cut skin or fingers.
How It Gets Fixed
A technician releases the spring tension safely, levels the door, replaces worn or damaged cables, resets the drums and rebalances the springs. They will also check rollers and tracks for damage caused by the uneven travel. The garage door cable repair page explains what that work involves. If you are in North Arlington, your local page has the same contact options.
Call (973) 400-5103 or use Get Estimate to schedule garage door service.