
Garage Door Spring Replacement
Torsion and extension spring replacement done with proper tensioning tools.
View detailsFrayed, slack, and snapped lift cables replaced and re-seated on the drums.

Lift cables connect the bottom of the garage door to drums at the ends of the torsion shaft. They are what translate spring torque into an even upward pull on both sides of the door. Cable repair addresses fraying wire, a cable that has slipped off a drum, incorrect routing, damaged bottom fixtures, and the track or balance faults that led to cable trouble. A loose cable is also a symptom. We inspect why tension changed before restoring the cable path and leveling the door.
Cable life varies with door alignment, moisture exposure, spring condition, and how often the door runs. A cable with intact strands and correct drum wraps may remain serviceable; visible fraying, kinks, corrosion, or a damaged end fitting are replacement signals. If a cable has slipped because a spring broke or a track binds, correcting cause prevents the replacement cable from repeating the failure.
Work through the symptom first — some of these turn out to need no technician at all.
A cable can leave its drum when the door moves unevenly, the shaft shifts, or tension is lost during a bind. Once the cable overlaps or unspools, the door no longer receives equal lifting force on both sides.
Repeated bending over drums and exposure to moisture can break individual wire strands. Fraying weakens the cable and creates sharp strands that catch on hardware, making an otherwise small defect progress quickly.
A roller that binds in a bent track can make one side lag behind. The cable on the other side continues to wind, changing tension until a cable loosens or comes off its drum.
When a torsion spring breaks, the shaft can no longer keep the cables properly tensioned. The door may drop unevenly and a cable can unwrap, even though the cable itself was not the original failure.
De-icing brine and road salt can be carried into a garage on winter tires, then dry onto low steel hardware near the door. In Mississauga, that exposure can accelerate corrosion on cables, bottom fixtures, and the lower track long before upper hardware looks weathered. A quick visual check for broken cable strands or orange residue at the bottom corners is worthwhile every winter season. Cleaning salt residue helps, but it does not make a frayed cable safe to keep using.
Treat a loose or frayed lift cable as a high-risk condition. Cables are tied directly to spring tension, and bottom brackets are under load when the door is closed. Do not grab a dangling cable, cut off frayed strands, remove a bottom bracket, or try to wind the cable back onto its drum. The door can shift or fall while the cable is handled. Keep the opening clear and book cable service online for email confirmation.
We secure the door before touching the cable system. The opener is disconnected when necessary so it cannot pull against a crooked door or create more uneven tension.
Cables, drums, bottom brackets, springs, shaft bearings, rollers, and tracks are inspected together. This shows whether the cable failed, slipped, or was pulled out of position by another fault.
A serviceable cable is seated correctly or a damaged cable is replaced. The drums are aligned and both sides are set to carry equal tension as the door moves.
We operate the door manually through its range, watching cable wraps and bottom corners. The opener is checked afterward to ensure its arm is not masking a remaining balance issue.

Torsion and extension spring replacement done with proper tensioning tools.
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Off-track correction, worn roller replacement, and bent track realignment.
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Same-day emergency repair for doors that won't open, close, or stay on track.
View detailsFill out the form and we'll confirm your appointment by email.
Garage Door Cable Repair is available across every Mississauga neighbourhood inside the area below.
Map data © Google. Pin shows the service area, not a walk-in location — all work is done at your home.

A real callout, not stock imagery.
A sectional door pulled off its tracks, taken down and supported on site so it could be checked and re-hung safely — photographed on the job.