Garage Door Cable Repair for Hollis Homes

What the Fix Involves

Hollis sits five miles from our shop in Nashua, which is close enough that the truck rolling out usually hasn't had to guess twice about what's in it. A snapped or frayed cable repair means pulling the old cable off the drum, checking the drum itself for grooving, inspecting the bottom bracket where the cable anchors, and re-tensioning the opposite side so the door doesn't rack when it runs. On a double door, both cables get checked even if only one let go - if one side is worn from age, the other is close behind.

Most of Hollis went up around 1979, which puts a lot of doors here on galvanized aerial cable and steel drums that have had four decades to see New Hampshire winters. That combination holds up fine until the galvanizing wears through at the drum groove, and then the strands start to fray one at a time until the last one gives, usually on a cold morning when the cable is stiffest. We replace to the same cable diameter and drum pitch as the original setup rather than swap in whatever's closest, because a mismatched drum throws the cable off-track within a few cycles.

The DIY Question

A broken cable on a torsion system means the door is under spring load even though it looks dead. Pulling a wound torsion spring isn't something to improvise with winding bars you don't normally use, and a cable under tension that lets go wrong can take a finger or snap back hard enough to hurt. If your cable has popped off the drum but isn't frayed or broken, sometimes it can be re-seated without full replacement - that part a careful homeowner can sometimes assess, from the outside, without touching the spring. Anything past that, leave it. It's not a pride thing, it's a leverage thing: the forces involved don't care how careful you are.

What Can Go Wrong

The failure we see most in Hollis is a cable that frays at the drum first, because that's where it flexes hardest every cycle. Left alone, a fraying cable eventually snaps, and when it does, the door drops unevenly and can jam sideways in the tracks or crack a bottom panel if it was already weak. On the older end of the stock here, from the late 1970s and earlier builds in the area, we also find drums that have worn an uneven groove from decades of cable wear, which means a new cable on an old grooved drum will fray again in months rather than years. New Hampshire's cold winters add another layer: cold cable is stiffer and less forgiving when it flexes, so failures cluster in the coldest stretches rather than spreading evenly through the year.

Stocked Parts

We stock the standard cable gauges and drum sizes that fit the torsion and extension setups common to houses built through the 1980s and 90s, which covers the bulk of what's in Hollis and the surrounding towns. For a straightforward snapped cable on standard hardware, the parts are usually already on the truck, which matters more here than a long drive time does - the five miles from Nashua is not the bottleneck, having the right drum pitch is. Uncommon cable lengths, oversized commercial-style doors, or older proprietary drum styles sometimes need an order, and we'll tell you straight if that's the case rather than force a part that's close but not right.

How Long It Takes

A single cable replacement on a standard torsion system is usually a same-visit job once the truck is on-site - there's no mystery to diagnosing a snapped cable, the hard part is doing the re-tension correctly so the door doesn't drift off level afterward. Add inspection time if the drum shows wear or if the opposite cable is close to failing too, since replacing one side and ignoring a worn match on the other just means a second call in a few months. The short run from Nashua to Hollis means the appointment itself isn't where the time goes; it goes into doing the spring and cable work right the first time.

Frequently asked questions