How To Fix A Garage Door Cable
Royal Garage Doors is rated 5.0 from 500+ reviews, with 15 years in business and technicians averaging 12 years of hands-on experience installing and repairing doors across Toronto and the wider GTA.
How do you fix a garage door cable?
How to fix a garage door cable: because the cables sit under spring tension, the job means relieving that tension, replacing both cables, re-seating them on the drums and re-balancing the door. A frayed or off-drum cable is not a safe DIY repair — Royal Garage Doors does it for $180–$260 + tax ($260 with bottom brackets).
Why is my garage door crooked / hanging on one side?
Usually a snapped or off-drum lift cable on that side. One cable lets go, that corner drops, and the door binds in the track. Stop using it before it jams
- Rating
- 5.0★ from 500+ verified Google reviews
- Experience
- 15 years in business across the GTA
- Warranty
- Workmanship guarantee; 5 years on hardware, 90 days follow-up
- Author
- Nick Thompson, Founder & Lead Technician
Signs of a failing garage door cable
- The door hangs crooked or one corner drops.
- A frayed or kinked cable dangling near the drum.
- The door binds, jams, or grinds on one side.
- Loose cable slack when the door is closed.
- The cable has jumped off the drum entirely.
Why cables fail
- Rust & fraying from moisture and road salt.
- Misaligned drums that grind the cable.
- Worn bottom brackets where the cable anchors.
- A broken spring suddenly shock-loading the cables.
How the repair works
- Open and clamp the door so the cables aren’t loaded.
- Detach the old cable from the bottom bracket and drum.
- Seat matched new cables on the drums and brackets.
- Tension both drums evenly so the door sits level.
- Cycle and balance-test the door.
Why it’s risky to DIY
Lift cables share the spring system’s tension. With an intact spring, the cable is fully loaded; if the spring is broken, the door’s full weight is unsupported. Either way a mistake can drop the door or whip the cable. Pair this with our spring guide to understand the system.
Royal Garage Doors recommendation
Cable repair is fast and same-day for a technician. Book cable repair in Toronto, check repair costs, or see track repair if the door also jumped the rail.
Frequently Asked Questions
Why is my garage door crooked / hanging on one side?
Usually a snapped or off-drum lift cable on that side. One cable lets go, that corner drops, and the door binds in the track. Stop using it before it jams or comes off-track.
Why do garage door cables break?
Rust and fraying from moisture (especially with road salt), misaligned drums that chew the cable, worn bottom brackets, or a broken spring suddenly loading the cables.
Is it safe to replace a cable myself?
It’s risky — the cables work with the springs under high tension. If the spring is intact, the cable is loaded; mishandling can cause the door to drop or the cable to whip. We recommend a technician.
Should both cables be replaced?
Yes. Cables age together; replacing the pair keeps the door balanced and avoids a second call when the other side fails.
How much does cable repair cost?
$180–$260 + tax for cables and brackets, or about $260 if the bottom brackets are replaced too. Free service call with the repair.
Sources & standards: Garage door safety follows the UL 325 standard for automatic operators, and our technicians are certified by the International Door Association (IDEA). Pricing reflects current Royal Garage Doors rates for the GTA.
The bottom line: done right, the result is a garage door that opens quietly, balances correctly and is safe to use every day — backed by Royal's 1-year labour warranty so the outcome lasts.
