What this service covers
The giveaway is asymmetry. One side of the door sits several inches lower than the other, the door binds hard in the tracks, and there may be a loose loop of cable dangling beside the vertical track.
Cables rarely fail without warning. They fray strand by strand at the bottom bracket and around the drum for weeks before letting go, which is why a technician who spots fraying during another repair will point it out.
Signs you need cable repair
If any of these describe your door, this is the service you want. If you are not sure, describe the symptom on the phone and we will tell you which it is.
- The door hangs visibly crooked, with one bottom corner lower than the other
- A loose or slack cable hanging beside the track
- Frayed, kinked or rust-stained cable strands near the bottom bracket
- The cable has jumped off its drum and wound onto the shaft or under itself
- The door binds, scrapes or jams part-way through its travel
- The door drops suddenly on one side when closing
- Grinding from the top of the vertical track as the door moves
What the technician does
- 1
Secure the door before touching anything
The door is clamped or supported so it cannot drop while the cables are off. This is non-negotiable — an unsecured door with a cable removed can fall its full weight.
- 2
Find the underlying cause
Cables do not usually fail on their own. The technician looks for the reason: a worn drum, a bent bottom bracket, a track out of plumb, a rough spot in the track, or a spring that has lost tension and allowed the cable to go slack and unwrap.
- 3
Replace both cables and re-seat the drums
Cables are replaced as a pair so both sides carry identical wear. Drums are re-seated, the set screws torqued to the shaft flats, and cable tension equalised so the door tracks straight.
- 4
Level, balance and test
The door is re-levelled, spring balance is rechecked, the opener's force and limits are reset, and the door is cycled several times to confirm the cables stay seated and wind evenly.
Parts and brands we handle
Cable and drum hardware is stocked in the standard residential sizes:
- Galvanized aircraft-grade lift cables in standard 7x7 and 7x19 constructions
- Cable lengths for 7ft and 8ft door heights, and high-lift configurations
- Cable drums matched to door height and drum type
- Bottom brackets and bottom fixtures, replaced when bent or corroded
- Torsion shafts, bearings and set-screw hardware
- Safety containment cables for extension spring systems
How long it takes
A straightforward pair of cables with drums re-seated takes about 60 to 90 minutes. If the door came fully off track when the cable let go, or a bottom bracket or track section was bent, add time — that combined repair is quoted before work starts.
Safety warning
Do not pull the emergency release cord while the door is raised and a cable has failed. With one cable gone the door is held by a single point and can swing or drop. Leave the door where it is, keep vehicles and people from underneath it, and do not attempt to re-wind a cable onto its drum — the drum turns with full spring tension behind it.
Why this comes up in Hamilton
Road salt is the main enemy of garage door cables in Hamilton. Slush carried in on vehicles collects at the bottom of the door, and the bottom bracket and the lowest few inches of cable sit in that salted meltwater all winter. Corrosion works from the outside strands inward, so a cable can look serviceable at eye level while it is nearly gone where it wraps the bottom fixture.
Homes with sloped or short driveways — common on the Mountain and through Stoney Creek — see more of this, because water runs toward the door rather than away from it. Wiping the bottom track dry after heavy winter use, and having the cables inspected each spring, is a genuinely effective preventative in this climate.