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Garage Door Cable Snapped or Frayed
in Colorado Springs, CO
Steel cables run from the bottom corners of the door up and around drums near the springs, and they carry a significant share of the door's weight during operation. In Colorado Springs, the freeze-thaw cycle through spring keeps the garage floor wet for weeks at a time, and that standing moisture corrodes the lower portion of the cables where they attach at the bottom bracket. Homes in areas near Fountain Creek or lower-elevation neighborhoods see this faster because of longer wet seasons near the ground.
Quick Answer
Garage door cables are steel wires that work with the springs to control the door's weight as it moves. In Colorado Springs, moisture from spring snowmelt and winter ice near the garage floor corrodes cables from the bottom up, causing them to fray and snap. A technician replaces the cables and checks the drums and springs at the same time. A snapped cable is a safety emergency and the door should not be used until it is repaired.
Telltale Signs
Warning Signs to Watch For
- One side of the door is visibly lower than the other when closed
- You can see frayed wire strands or kinks in the cable near the bottom corner
- The door will not open at all or only rises a few inches before stopping
- A snapping or popping sound was heard just before the door stopped working
- The cable is visibly slack or hanging loose on one side
Root Causes
What Causes Garage Door Cable Snapped or Frayed?
Corrosion from Snowmelt Moisture
Colorado Springs gets an average of 57 inches of snow a year, and that snow tracks into garages on tires and boots and melts near the door. The bottom cable bracket sits close to the floor where water pools, and steel cables rust from the outside strands inward until enough wires break to snap the whole cable.
The Fix
Cable Replacement with Galvanized Cable
A technician replaces both cables at the same time using galvanized steel cable, which resists corrosion better than plain steel. Replacing both prevents the second cable from snapping a short time later after the first one is fixed.
Cable Drum Wear or Misalignment
Cables wind around a drum at each end of the torsion spring shaft. If a drum cracks, slips, or is not aligned correctly, the cable winds unevenly and cuts into itself on the drum edge on each cycle. This frays the cable from the top down rather than from the bottom up.
The Fix
Drum Replacement and Cable Re-Winding
A technician replaces the damaged drum and winds a new cable correctly so it sits in the groove without overlapping. The spring tension is checked and adjusted at the same time because an uneven cable often signals the spring needs attention too.
Spring Failure Transferring Load to Cable
When a spring breaks, the full weight of the door shifts onto the cables instantly. Cables are not designed to hold the door alone without spring tension, and the sudden shock load of a spring failure will snap a cable or at minimum kink it badly. This is why a broken spring often takes out the cable at the same time.
The Fix
Combined Spring and Cable Replacement
A technician replaces the spring and both cables together when a spring failure has damaged the cables. Replacing only the spring and leaving a kinked cable means the cable will fail again soon.
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 | Corrosion from Snowmelt Moisture | Cable Drum Wear or Misalignment | Spring Failure Transferring Load to Cable |
|---|---|---|---|
| Cable is frayed or rusty near the bottom corner bracket | |||
| Cable is frayed or kinked near the top drum | |||
| Both the spring and cable failed at the same time | |||
| One side of the door hangs several inches lower than the other | |||
| Cable is completely slack and the door is resting on the floor unevenly |
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