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Broken or Frayed Garage Door Cables
in Plano, TX
Lift cables run from the bottom corner of the door up to a drum near the spring shaft, and they take enormous tension every time the door moves. When a cable snaps or frays badly, the door drops on the broken side, bends the panel, and can injure anyone standing nearby. In Plano, cables corrode faster on the sections closest to the floor because spring rain and humidity sit in the bottom track hardware and rust the cable ends first. Most cable failures happen in houses where the garage door hasn't had any service in 5 or more years.
Quick Answer
Garage door cables do the actual lifting work alongside the spring, and they snap when the spring breaks suddenly or when rust eats through the individual steel wires. Plano's wet spring season and humid summers speed up rust on unprotected cables. A technician replaces both cables at the same time even if only one is broken. Do not try to use the door and call (361) 470-4268 right away.
Telltale Signs
Warning Signs to Watch For
- Door is hanging at an angle, lower on one side than the other
- You can see loose wire strands sticking out from the cable
- The cable has gone completely slack and is coiled on the floor
- There is a loud snap sound followed by the door dropping
- One side of the door scrapes the track or frame when opening
- The bottom corner bracket has pulled away from the door panel
Root Causes
What Causes Broken or Frayed Garage Door Cables?
Spring Break Shock Load
When a torsion spring snaps, it releases all its stored energy instantly. That shock load can yank the cable hard enough to snap it at the drum or fray the last few inches near the bottom bracket. The broken spring and broken cable almost always need to be addressed in the same repair.
The Fix
Cable and Spring Replacement Together
Replacing only the cable while leaving a suspect spring in place means the cable may snap again quickly. The technician replaces both parts at once and re-tensions the system to the correct balance.
Rust and Corrosion at Cable End
Plano gets around 40 inches of rain per year, and the spring rainy season keeps the garage floor and bottom track wet for weeks at a time. That moisture collects in the small swaged fitting at the cable's end and rusts the individual wires from the inside out. The cable looks intact until the corroded section snaps under load.
The Fix
Cable Replacement and Bottom Hardware Inspection
The technician replaces both cables and inspects the bottom brackets and drums for rust damage. Applying a dry lubricant to the cable ends and bottom hardware after replacement slows the corrosion process.
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 | Spring Break Shock Load | Rust and Corrosion at Cable End |
|---|---|---|
| Cable snapped right after hearing the spring break | ||
| Cable frayed at the very bottom near the door panel bracket | ||
| Door dropped suddenly on one side without any warning sound | ||
| Both the spring and cable are visibly broken at the same time | ||
| Rust visible on the cable end fitting near the bottom corner |
Free Inspection
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