What Garage Door Cables Do
Garage door cables are steel lifting cables that run from the bottom corners of your door, up through pulleys, and wrap around drums mounted on the spring shaft. They work in tandem with the springs — when the door opens, the springs unwind and the cables carry the door's weight evenly on both sides.
Without properly tensioned cables, the door becomes unbalanced. One side rises faster than the other. Sections bind on the track. In the worst cases, the door drops suddenly with its full weight — 150 to 400 lbs — with no warning.
Why Cables Break
Cables fail for several reasons:
- Normal wear — steel cables flex thousands of times over years and eventually fray
- Rust and corrosion — Long Island's coastal humidity accelerates rust on uncoated cables
- Spring failure — when a spring breaks, the sudden load change can snap the cable too
- Cable unspooling from drum — the cable comes off the drum, leaving the door unsupported
- Door impact — hitting the door with a vehicle can kink or snap a cable
Signs Your Cable is Broken
- Door hangs lower on one side than the other
- Cable lying slack on the garage floor
- Door moves in a jerky, scraping motion
- Opener strains or makes a grinding noise
- Door won't open fully or reverses
- Visible fraying or kinking in the cable
The Repair Process
Our technician arrives with cables for all standard door sizes. The repair process:
- Secure the door in a safe position
- Release any remaining spring tension
- Remove old cable from drum and bottom bracket
- Thread and attach new cable correctly
- Rewind cable on drum under proper tension
- Check and adjust spring tension if needed
- Test door balance and operation
Total time: 60–90 minutes in most cases. If the spring also needs replacing, add another 30–60 minutes. We handle both in the same visit.
Cable Repair Cost
| Service | Typical Cost Range |
|---|---|
| Single cable replacement | $100 – $175 |
| Both cables replaced | $150 – $250 |
| Cable + spring replacement | $220 – $400 |
| Cable drum replacement | $80 – $150 (add-on) |