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Garage Door Cables Broken or Frayed
in Rochester, NY
Cables run along each side of the garage door and carry a large share of the door's weight when it moves. In Rochester, cables rust faster than they would in a dry climate because the garage floor stays wet from November snowmelt through April mud season. A frayed cable that snaps can let one side of a heavy door drop suddenly, which can damage the car underneath or hurt someone nearby.
Quick Answer
Garage door cables work with the springs to hold the door's weight and keep it balanced. When a cable frays or snaps, one side of the door loses support and it can drop or jam in the track. Rochester's cold and damp winters speed up rust and wear on cables that aren't maintained. A broken cable is a safety issue. Stop using the door and call (585) 514-4736 to have a technician replace the cable before the door falls.
Telltale Signs
Warning Signs to Watch For
- The door hangs crooked with one side visibly lower than the other
- You can see individual wire strands fraying or sticking out from a cable
- One cable lies slack on the floor or is piled up in the bottom corner
- The door makes a loud pop and then won't open or close
- The door feels very heavy when you try to lift it manually
- One side of the door drags against the track while the other moves freely
Root Causes
What Causes Garage Door Cables Broken or Frayed?
Rust and Corrosion on Cable Strands
Steel cables are made of dozens of thin wire strands twisted together. In Rochester garages without good drainage or ventilation, standing water and road salt tracked in by vehicles coat the cables and start rusting the strands from the outside in. Once enough strands rust through, the cable snaps under load.
The Fix
Cable Replacement With Rust-Resistant Cable
A technician replaces both cables at the same time, even if only one is broken, because the other is usually close behind. Galvanized or vinyl-coated cables hold up better in wet conditions.
Cable Drum Misalignment
Cables wind onto small drums at the top corners of the door as it opens. If a drum slips out of position, the cable starts winding unevenly and rubs against the drum edge. That edge cuts through the cable strands over time, and the cable fails well before it should.
The Fix
Cable and Drum Realignment
The technician resets the drum to the correct position, checks the cable winding pattern, and replaces the cable if it shows wear from the misalignment. Spring tension is also verified as part of this repair.
Self-Diagnosis
Which Cause Applies to You?
Check the signs you're observing to narrow down the likely root cause before your inspection.
| What You're Seeing | Rust and Corrosion on Cable Strands | Cable Drum Misalignment |
|---|---|---|
| Rust visible on the cable or individual strands sticking out | ||
| Door hangs unevenly and one cable looks tangled at the drum | ||
| Loud pop heard and door dropped or jammed immediately after | ||
| Slack cable piled up in the bottom corner of the door track | ||
| Garage floor stays wet in winter from tracked-in snow and salt |
Free Inspection
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An on-site inspection is the only way to confirm which cause applies to your property. Free, no obligation.
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