Garage Door Cable Repair in Farmington, MO
When a lift cable snaps, frays or slips off its drum, the repair puts it back or swaps it, evens out both sides, and traces what wore it so the failure doesn't repeat.
A door that sits crooked in your Farmington garage, rides with one corner high, or has a loose steel cable swinging beside it has lost a cable. Don't run it again until someone repairs it.
Clues pointing to a cable
One side sits low
The bottom edge is higher on one side, whether the door is open or shut.
A cable dangles alongside the door, or sits unwound from the top drum and hangs slack.
Rust or broken strands, most often at the bottom corner where the cable is anchored to the door.
The door lurches or twists while moving, or a corner snags in the track.
A sharp crack, then a door that wouldn't budge or sagged on one side.
Door crooked or a cable hanging? Don't move it; just describe what you can see and hear.
Contact UsRole of the cables
Springs hold the energy and the cables carry it down to the door. With torsion springs, a cable climbs from a bracket at each lower corner to a drum fixed on the shaft.
When the springs unwind, the drums take up the cables and the door climbs level. Extension-spring doors work differently: the cables loop around pulleys mounted on the springs beside each track.
Each cable has to carry an equal share of the weight.
If one side fails, the survivor carries the entire door, which then skews in the opening while rollers, track and panels start taking new damage.
What wears them out
Corrosion low on the cable
The bottom of the cable sits where water and road grit collect, and with about 45 inches of precipitation a year in Farmington, rust works its way upward from there.
Wear over time
Each cycle rubs steel against the drum and bracket.
A failed spring
Once a spring breaks, that side's cable goes slack and frequently hops off the drum.
An obstruction on the way down slackens a cable, so it can unspool off the drum.
Drums or pulleys sitting off-line, chewing at the strands raw over time.
Before help arrives
Skip the opener when the door hangs crooked; it twists the door further and may pull it from the tracks.
Leave the bottom brackets alone
A bracket holds the cable against full spring tension on most doors, and loosening it can whip the cable loose with force.
Don't move the door from where it stopped. Keep family, pets and vehicles away from it, and never force a half-open door shut.
Stages of a cable repair
Spring tension comes off first, before any part is disconnected. That step is what makes cable work hazardous without proper tools.
Finding the cause
A spring failure behind the jumped cable has to be repaired as well, or it will recur.
Both cables normally get replaced together; they aged side by side, and a new cable beside a worn one pulls out of step.
Drums, pulleys and brackets are inspected and replaced when they caused the wear on the cables.
Spring force is restored and each side set level, and a few complete open-close runs confirm the door climbs square and quiet.
Describe what's happening
A sentence or two is enough to begin, and you needn't be able to name the part that failed.
What affects cable repair cost
A single cable put back on its drum or a full set of new ones
Torsion or extension design, which changes both parts and labor.
Knock-on damage from the failure
A bent track, a damaged roller, a cracked lower panel.
Worn drums, pulleys or corroded bottom brackets replaced alongside the new cables.
A second failed spring, a frequent find, since one break tends to bring on the other one.
If the cable isn't to blame
A visible gap in a spring coil overhead
Begin with spring repair; the cable is normally a casualty, not the culprit.
Quick answers
Is re-seating a cable on its drum a DIY job?
Not safely. Putting the cable back means taking the spring's load off first, since it sits under tension. It seems minor, yet it is exactly the sort of job that ends in the emergency room.
If just one cable broke, should I replace both?
Typically. They wore alike, and a mismatched pair lifts unevenly. When the other cable is nearly new, ask the repairer whether it can stay.
What keeps the bottom of a cable from rusting?
Keep the bottom seal tight so water won't pool at the corners, rinse off slush during Farmington's average 8.7 inches of snow, and have the cables checked on a maintenance visit.
More garage door help
Garage Door Spring Repair
Springs that have snapped, torsion or extension, replaced to suit the weight of your door.
Details →Garage Door Off Track Repair
Doors that have left their tracks re-hung, with bent track and worn rollers dealt with.
Details →Garage Door Maintenance
A routine check of springs, cables, rollers and the safety reverse before something breaks.
Details →Contact us
Say which side hangs lower and whether a cable is loose, and send a photo of both bottom corners. Ask for the quote in writing; the Missouri Attorney General mediates complaints about contractors.