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Garage Door Cable Repair in Dover, MA
If your door is hanging at an angle, with one corner low and a cable hanging loose by the bottom roller, that corner has lost its support. On the larger carriage-style doors common on Dover’s wooded lots, that usually means a cable has come off the drum or frayed through, and the door needs to come off its track before anyone touches it again.
A cable failure is not a cosmetic problem. The door is still attached to a torsion spring wound tight enough to lift a few hundred pounds of wood or insulated steel, and with one cable gone that force has nowhere controlled to go. We see this on Dover calls more than you’d expect, given how many long driveways and detached garages sit back from these roads.
Garage Door Cable Repair in Dover
Most residential doors use two lift cables, one on each bottom bracket, running from the bottom corners up to drums mounted on the torsion spring shaft. The cable is what actually lifts the door – the spring just supplies the counterweight force through the shaft and drums. When a cable frays at the bottom bracket, slips off a drum, or snaps outright, that side of the door drops. The opener will keep trying to drive the door through its track, which bends the track, racks the hinges, and can strip the drive gear.
Repair means winding the spring down to relieve tension, pulling the drum and cable off the shaft, checking the drum groove and shaft key for wear, and installing a new cable rated for the door’s weight and the correct drum size. If the old cable failed because it was undersized or the wrong length for the door, we correct that at the same time rather than just matching what was there. On older wood doors we also check whether the bottom bracket itself has pulled loose from the stile, which is a separate repair and the usual root cause of repeat cable failures on heavier doors.
What we look at
What we look at
We don’t replace a cable in isolation. A cable rarely fails on its own – something upstream is usually putting extra load on it.
Door balance and movement
We disconnect the opener and move the door by hand to see where it wants to sit. A balanced door should hold position anywhere in its travel. If it slams down or shoots up, the spring is doing too much or too little work, and that imbalance is what overloads one cable while the other stays slack.
Spring type and cycle rating
We confirm whether you have torsion springs on a shaft above the door or older extension springs running along the horizontal tracks, and check the cycle rating stamped or recorded on the spring. A spring near the end of its rated cycles is a common trigger for cable wear, since a tired spring lets the door drop unevenly on every open-close cycle.
Cable and drum condition
We inspect both cables for fraying, rust, and incorrect winding on the drum, and check the drums themselves for cracks or a worn groove. If one cable has failed, the other is usually close behind, and we’ll tell you honestly if it needs replacing at the same time rather than waiting for a second breakdown call.
Track alignment, opener settings, and safety reversal
We check that the vertical tracks are plumb and the horizontal sections are level, since a dropped cable often bends the track on its way down. We also check the opener’s force and limit settings, because an opener fighting a misaligned or out-of-balance door will over-tighten its force setting to compensate, which is dangerous. Last, we run the safety reversal test – the door has to stop and reverse on contact with an obstruction – before we consider the job finished.
Homes in Dover
Dover has a lot of larger lots with detached garages set away from the house, plus a good number of custom-built colonials and farmhouse-style homes where the garage was added or expanded to match a bigger house footprint. That means wider two-car doors, taller openings for larger vehicles, and in some cases carriage-house style doors built from real wood rather than steel. Wood doors are heavier than a standard steel section door of the same size, which puts more load through the cables and the drums, and it’s a big reason we check bracket condition closely here.
We also still find older single-door garages on some of the town’s original homes, often with lighter-duty extension spring systems from an earlier build era. Those systems use a different cable routing with safety cables through the extension spring itself, and they fail in a different way than a torsion system – something we confirm on-site before quoting a repair, since the parts and the labor are not the same.
What it costs
Cost depends on what’s actually wrong, not just the broken cable.
What it costs
A straightforward cable replacement on a standard two-car steel door, with the spring and drums otherwise in good shape, runs between {PRICE_LOW} and {PRICE_HIGH}. The range moves based on whether both cables need replacing, whether the drums or bottom brackets are damaged, whether the spring is also due for replacement, and whether the door is a heavier wood or custom carriage-style unit that needs a higher cycle-rated spring to match. We’ll give you the actual number once we’ve looked at the door, not before.
How fast we can get there
We cover Dover from our Bellingham base as part of our regular service area.
Got Questions?
Common questions
Can I drive my car out if a cable has snapped but the door is still partway open?
If the door is being held up by the opener or anything other than a sound cable system, don't trust it to stay in place. A door with a broken cable can drop suddenly. Call us before you try to move it, even partway.
Is it ever just one cable, or do both need replacing?
Sometimes it's one. But cables usually wear at a similar rate since they carry the same load, so if one has frayed through, the other is often close behind. We check both and tell you honestly what's needed.
Why did my cable snap if the door was working fine a day before?
Cable wear is usually gradual – fraying at the bottom bracket or a worn drum groove – and it can look fine right up until it isn't. A spring nearing the end of its cycle life or a door that's slightly out of balance both accelerate that wear without obvious warning signs.
Do you carry cables for older wood garage doors?
Yes. Wood doors need cables rated for the extra weight, and we size the replacement to the door rather than installing a generic cable that will wear out again quickly.
Will my opener need adjusting after the cable is fixed?
Often, yes. Once the door is rebalanced and the new cable is installed, we check the opener's force and limit settings, since those are frequently set to compensate for the fault that caused the cable to fail in the first place.
How fast we can get there
Dover is about 12 miles from our shop in Bellingham, which puts it comfortably within the area we run cable and spring calls every week. We don’t quote a fixed response time here because it depends on where our trucks already are that day, but it’s a route we know well and a town we work in regularly.
Call AB Garage Door
If a cable has let go and the door is sitting crooked, don’t try to lift it level or disconnect the opener and force it closed. Call us, tell us what you’re seeing, and we’ll walk you through what to avoid until we get there.
Request a Free Quote
Reach AB Garage Door at {PHONE} for cable repair in Dover, or send details through our quote form and we’ll follow up with next steps and an honest estimate.