Short answer
If a garage door cable broke, stop using the door. Do not press the button, lift the door or pull the emergency release cord: one side may be held up only by the other cable and spring. Unplug the opener if you can reach it from a step ladder. Keep kids, pets and cars away from the door, and call a garage door company.
Safety first
The cables and springs hold the weight of the door under heavy tension. Never touch a loose cable, the drums or the brackets at the bottom corners, and never stand under the door.
Broken garage door cable: what to do and what not to touch
1A bang, and the door hangs crooked
A cable snapped or came off its drum. One side drops lower and a loose cable hangs next to the door.
Read all the steps
- A bang, and the door hangs crooked. A cable snapped or came off its drum. One side drops lower and a loose cable hangs next to the door.
- No opener, no lifting. Running the opener or lifting the door puts all the weight on the other side. Unplug the opener if you can reach the plug safely.
- Leave the release cord alone. Pulling the emergency release can let the crooked door drop. Leave it connected to the opener.
- Keep kids, pets and cars clear. Nobody walks or drives under the door, even if it looks stuck. If the car is inside, leave it there for now.
- Call a garage door company. Say a cable broke and the door is crooked. Cables are usually replaced in pairs, and the springs get checked at the same time.
- Don’t touch it: call a garage door company Especially if: a cable is loose, frayed or hanging.
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Why cables break
- Rust and fraying, often at the bottom corners near the floor.
- A worn or broken spring that lets the cable go slack and jump off its drum.
- The door hit something or came off the track.
What to ask the technician
- A written price for parts and labor before the work starts.
- Whether they replace both cables, since they wear out together.
- Whether they check the springs, the rollers and the balance of the door on the same visit.
- What warranty comes with the parts and the labor.
When to call a garage door technician
- A cable is loose, frayed or hanging.
- The door is crooked or one side is lower.
- The door is stuck open and you can’t secure the garage.
- Your car is trapped inside and you need it.
Frequently asked questions
Can I replace a garage door cable myself?
It is not safe. The cables work with springs under heavy tension, and the job means unwinding the spring. Leave it to a technician with the right tools.
Can I use my garage door with a broken cable?
No. The door can come down crooked or fall. Leave it where it is, unplug the opener and call.
What happens when a garage door cable snaps?
You usually hear a bang, the door drops on one side and a loose cable hangs near the track. The door may jam or hang crooked.
Should both garage door cables be replaced?
Usually yes. They are the same age and wear at the same rate, so technicians often replace them as a pair.
Is a broken garage door cable an emergency?
It is urgent when the door is stuck open, hanging over the doorway or your car is trapped. Use the "24/7 emergencies" filter to find companies that answer now.