The Complications
A lot of garage doors in Bannockburn are still running the cables and drums that went in when the house was built, somewhere around 1975. Nobody thinks about garage door cable until it snaps, and a cable that's been on the drum for close to fifty years is well past any reasonable service life. The complication with original hardware is that it was matched to a door and spring set that may have been adjusted, repainted, or had a panel replaced since, but the cable itself just stayed put. When one side finally frays or jumps the drum, the door comes down crooked or won't move at all. On a cold morning, a cable that's already thinning from age snaps a lot easier, because the steel gets brittle and the door is heavier to lift when the lubricant in the rollers and hinges has stiffened up. We see this pattern across the areas we cover near Deerfield, and a street with mostly 1970s-era houses tends to produce more of these original-hardware failures than a block built in the 2000s.
How Long It Takes
Most cable jobs are a single visit. Once we're on site and have looked at the drums, the spring, and the track alignment, replacing one or both cables usually takes under an hour of hands-on work. It takes longer if the cable broke under tension and damaged the drum or bent the shaft, which happens more often on doors that have never had the cable touched since installation. We travel from Deerfield to reach Bannockburn, a trip of about 2 miles, so there's no separate branch or depot adding time to the drive - just the usual scheduling around the job ahead of yours.
What You Are Seeing
A frayed or broken cable usually shows up as one corner of the door sagging lower than the other, or the door hanging crooked in the track when it's partway up. Sometimes you'll hear a loud bang from the garage - that's the cable letting go and the door dropping suddenly onto whatever is left holding it. Other times it's more gradual: the opener strains, the door shudders going up, or you can actually see a few strands of wire sticking out near the bottom bracket. If the cable has come off the drum but hasn't snapped, the door may simply refuse to open evenly, pulling to one side. Any of these is a sign to stop using the opener until someone looks at it, because a door running on a damaged cable can come off the track entirely.
What the Fix Involves
We start by releasing spring tension safely, then pull both old cables even if only one has failed - a cable that's fifty years old on one side is close behind on the other. We check the drums for wear grooves where the old cable has worn a path, and the bottom brackets where the cable attaches, since those can crack with age too. New cable goes on sized to the door's weight and drum diameter, then we re-tension the spring and run the door through a full cycle, checking that it tracks straight and stops level at the floor. If the drums themselves are worn or pitted from decades of use, we'll say so and price replacing those rather than just working around them - a new cable on a bad drum doesn't hold.
