Garage Door Cable Repair in Smithtown, NY
A garage door cable that has frayed, snapped or slipped off its drum leaves the door hanging crooked and unsafe to run. We replace lift cables in pairs from $205, re-seat cables that have jumped the drum, and fix the rusted bottom brackets that usually caused the problem.
What should I do if my garage door cable breaks? Stop using the door. Unplug the opener so nobody presses the button, keep cars and people clear, and call (631) 881-8120. A door on one cable can twist out of its tracks. Cable repair is one of the jobs we can usually finish on the first visit.
What Garage Door Cables Do
On a torsion-spring door, the spring bar runs across the top of the opening with a grooved drum at each end. A steel cable wraps around each drum and runs down the side of the door to the bottom bracket on the lowest section. When the spring unwinds, the drums turn, the cables wind up, and the door rises evenly on both sides.
On an extension-spring door, the cables run through pulleys at the end of each spring and do the same job. Either way, the cables carry the full lifting force of the springs. That is why a frayed cable is a real risk: when it finally parts, it does so under hundreds of pounds of tension.
Cables are thin — usually about an eighth of an inch — and made of many small strands. They are designed to last for years, but they sit right at floor level, where water, slush and salt from the driveway collect. That is where they fail.
Signs of a Worn or Broken Cable
- Strands sticking out of the cable near the bottom corner of the door, like a frayed rope.
- Rust on the cable or on the bottom bracket it hooks into.
- A cable hanging loose beside the door, or lying in a coil on the floor.
- The door rises crooked, with one side leading.
- The cable has slack in it when the door is closed instead of being snug.
- A cable has unwound from its drum and is wrapped around the bar.
Any of these means the cable needs attention before the next time the door runs.
Cable and Drum Repair Prices
We replace cables in pairs. The cable on the other side has the same age and the same exposure, and a new cable next to a tired one makes the door lift unevenly. Most cable jobs also include checking the drums, the bottom brackets and the spring balance.
| Service | From |
|---|---|
| Lift cables, pair | from$205 |
| Cable drum, each | from$79 |
| Bottom bracket | from$65 |
| Center or end bearing plate | from$85 |
| Off-track reset and re-hook When a loose cable has pulled the door out of the track | from$185 |
| Both torsion springs If the springs are also worn | from$489 |
Every price on this site is a starting price. The final price depends on the door, the parts and the work needed, and you get it in writing before any work begins. The $45 service call is only charged if no repair is done. Sunday emergency calls add $45.
Why Cables Fail at the Bottom Corner
The bottom bracket sits an inch off the garage floor. Every storm, every melted snowbank on the car, every bit of road salt tracked in ends up in that corner. Over a few winters the steel strands rust, the bracket rusts, and the cable starts to fray where it bends around the bracket pin.
When we replace cables, we look hard at the bottom brackets. If they are rusted thin, we replace them too, because a new cable on a weak bracket just moves the failure point. On doors where water pools at the bottom, a new bottom weather seal helps keep the corner dry.
Homes near the water in Kings Park, Fort Salonga, Nissequogue and Head of the Harbor see this sooner, because salt air reaches the hardware all year. Inland, in Nesconset or Hauppauge, it is mostly winter road salt.
When a Cable Jumps the Drum
Sometimes the cable isn't broken at all — it has come off the drum. This happens when the door comes down on a trash can or a bike and stops on one side while the opener keeps lowering; the slack cable then slips out of the drum's grooves. A broken spring can do it too, and so can a cable that has stretched with age.
The fix is to secure the door, release the spring tension, re-wind the cable onto the drum, and re-set the tension. If the cable has kinked where it slipped, we replace the pair. We also check why it happened — a sensor that should have stopped the door, or an opener set to push too hard.
What We Check on a Cable Call
Secure the door
A door hanging on one cable is clamped in the track before anything is loosened, so it cannot drop.
Find the cause
Rusted brackets, a worn drum, a broken spring, a door forced down on an obstacle — we look for the reason so it doesn't happen again next month.
Replace and balance
New cables on both sides, set to equal tension, door balanced and tested by hand and with the opener.
Cable problems often show up with other wear. Related pages: spring repair · off-track doors · noisy doors.
Garage Door Cable Questions
Straight answers with our starting prices. Last updated October 2026.
How much does garage door cable repair cost?
Replacing both lift cables starts at $205. If a cable drum is cracked or worn, a drum starts at $79 each, and a rusted bottom bracket starts at $65. We always replace cables in pairs so both sides lift evenly.
Why did my garage door cable snap?
Most cables fail at the bottom corner of the door, where they attach to the bottom bracket. Moisture from rain, snow and road salt rusts the steel strands there, and once a few strands break, the rest follow. A spring breaking can also throw the cable off its drum.
Can I use my garage door with a broken cable?
No. With one cable gone, the door lifts on one side only, twists in the opening and can jam or come off its tracks. Leave it closed if you can, unplug the opener, and call.
What does it mean when a garage door cable comes off the drum?
The cable has unwound from the grooved drum at the end of the spring bar. It usually happens when the door hits an obstacle on the way down, when a spring breaks, or when the cable has stretched. The door then hangs crooked. We re-seat or replace the cable and check why it came off.
Are garage door cables and springs the same thing?
No. The springs store the energy that lifts the door; the cables are thin steel ropes that carry that force from the spring drums to the bottom corners of the door. A door has two cables, one on each side, and they wear out separately from the springs.