Garage Door Cable Snapped: What to Do Right Now
A snapped lift cable usually announces itself with a crooked door: one side drops, the bottom panel hangs at an angle, and a frayed steel cable dangles beside the track. HomeGuide puts replacing both cables at $150 to $250.
The door is now carried unevenly, and the spring on the broken side may still be wound. Leave it where it is, keep people clear, and have a technician replace the cables and check what caused the break.
If this is unsafe or getting worse right now, don't wait — send an emergency request and it's flagged for priority routing to an independent local pro.
What to do in the first 5 minutes
- Stop using the opener and the wall button. Running a door on one cable can pull it off the track or bend panels.
- Keep children, pets and cars out from under the door and away from the dangling cable.
- If the car is inside and the door is stuck, leave it there. Don't pull the manual release on a door that's partly open; it can drop.
- From a safe distance, look at the bottom corners and the drums above the door and photograph the broken cable and any rust.
- Call a local garage door technician and mention the cable, the door size and whether you heard a bang first, which can mean a spring broke too.
Do not do this
- Never try to re-thread, tie or replace a lift cable yourself. The cables work against springs that store enough energy to cause serious injury.
- Never touch the bottom brackets. They are the cable anchor point and carry spring tension.
- Don't stand or reach under a door hanging on one cable.
- Don't try to lift the door by hand to free the car; HomeGuide says garage doors weigh 150 to 400 pounds.
What's likely going on
Normal wear
HomeGuide says thousands of open-and-close cycles make individual wire strands fray and eventually break. Fraying near the bottom bracket is the usual warning sign.
Rust
Humidity and salt air corrode the braided steel. HomeGuide notes this is most common in humid or coastal areas, which is why Gulf and Florida markets see more cable calls.
A spring broke first
When a spring snaps, the cables suddenly carry the door's full weight, and HomeGuide says that extra load often makes a cable snap too.
Cable came off the drum
A door that hit an obstruction or a slack cable can unwind from the drum and fray against the bracket. A technician will check drums and pulleys while replacing the cable.
Diagnose it now
What it typically costs
HomeGuide's third-party estimate puts standard replacement of both cables at $150 to $250, re-tensioning at $100 to $200, a full cable-system overhaul at $200 to $400, and emergency after-hours service at $250 to $350 or more. If a spring broke too, HomeGuide lists springs plus cables at $200 to $500.
Frequently Asked Questions
Can I use my garage door with one broken cable?
No. HomeGuide's cable guide says never to operate a door with broken or damaged cables. The door can come off the track, bend or drop. Leave it closed if it's closed, and keep clear if it's open.
Should both cables be replaced?
Usually. Both cables have the same age and wear, and HomeGuide's $150 to $250 figure for standard replacement covers both, which keeps the door balanced.
Is a snapped cable covered by insurance?
Usually not when it's wear or rust. If a car or storm caused the damage, check your homeowner's or auto policy and photograph everything before the repair.
Why did my cable snap right after a spring broke?
When the spring lets go, the cables carry the whole door. HomeGuide says that sudden load often makes a cable snap too, so ask the technician to check the springs, drums and bottom brackets together.
The service that handles this
Guidance only — independent local providers assess and price their own work. Last reviewed: October 16, 2026.
Sources for the cost figures
- HomeGuide: Garage Door Cable Repair Cost (third-party estimate, Oct. 8, 2025) (third-party estimate)
- HomeGuide: Garage Door Spring Replacement Cost (third-party estimate, Oct. 27, 2025) (third-party estimate)
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