
Garage Door Spring Replacement
Broken or fatigued springs replaced as a matched pair and re-tensioned to the door.
View detailsFrayed, slack or unwound lift cables renewed so the door travels level again.

Lift cables transfer the spring system's force from the drums at the top of the opening down to brackets at the bottom corners of the door. They are steel wire under constant tension, and they are supposed to sit in their drum grooves with equal wraps on both sides. When a cable frays, unwinds, snaps or simply loses tension, the door stops travelling level, and a door that is not level is on its way to leaving the track. Cable work therefore always includes finding out why the cable lost its path, because putting it back without answering that guarantees a repeat.
Cable life is governed by alignment, balance, cycles and exposure rather than by age alone. Replacement is the right answer whenever strands are broken, the wire is kinked or flattened, or corrosion has roughened the surface, because none of those conditions improve. A cable that has merely come off its drum while remaining undamaged can sometimes be re-seated, provided the underlying cause is corrected at the same time. Sections of the door itself do not need replacing because of a cable failure, unless the door came down hard or twisted in the opening while the cable was slack.
Our troubleshooting guides walk the diagnostic checks in order so you can confirm the fault before booking.
The cable anchors a few centimetres above the slab, exactly where meltwater, road salt and grit collect. Wire that has been pitted by rust loses strength long before the damage looks serious from a distance.
A broken spring or a jammed roller removes tension from the cable, and once it goes slack the drum loses its winding pattern. The cable then jumps a groove and the door lifts crooked.
A loose vertical track or a failed bottom roller pulls the door off its normal travel line, which changes the angle at which the cable approaches the drum and makes it climb out.
Cables need equal wraps and equal tension, set with the spring system controlled and the door held square. Re-seating one side casually leaves the door out of level and the fault comes straight back.
Cable corrosion is a Newmarket geography problem as much as a maintenance one. The detached brick houses around Leslie Valley Drive have front-facing garages on hilly ground in the East Holland River watershed, and Quaker Hill and Gorham-College Manor include plenty of sloped and pie-shaped driveways. Where a driveway falls toward the door, every warm afternoon sends meltwater to the threshold and every cold night freezes it there, right at the bottom bracket where the cable anchors. That repeated wetting and freezing, combined with road salt carried in on tyres, is what pits the wire. Rinsing the threshold area when the weather allows genuinely helps.
Do not grab, pull or attempt to re-seat a slack cable, and do not unbolt a bottom bracket. Those brackets are connected directly into the lift load and stay under full spring tension even when the door is open, which is why they can move violently when released. Broken strands are sharp enough to cut through a glove. Keep clear of a door that is hanging unevenly and do not cycle it to see whether it will straighten itself out, because each cycle drags more hardware out of position. Leave it and send the details through the form.
The door is clamped or supported so it cannot move, and the spring tension situation is established, before any hand goes near a cable, drum or bottom bracket.
Springs, drums, shaft, bearings, rollers, brackets and track are inspected to identify what removed tension or damaged the wire in the first place. The cable is usually the symptom.
Damaged, kinked or corroded cable is replaced with correctly sized lift cable, both sides together, because the surviving cable has the same age and exposure as the one that failed.
Drums are set so both cables carry equal wraps at equal tension, and the door is run through full travel by hand to confirm it stays in its grooves and rises level before the opener is reconnected.

Broken or fatigued springs replaced as a matched pair and re-tensioned to the door.
View details
Worn rollers, bent track and loose brackets corrected for quiet, guided travel.
View details
A pre-winter inspection and adjustment that catches wear before a January morning does.
View detailsFill out the form and we'll confirm your appointment by email.
Garage Door Cable Repair is available across every Newmarket 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.