Cable Repair for University Park's Late-1980s Garage Doors

Most of the garage doors we see called out to in this part of our service area went up around 1987, which puts them squarely in the stretch of 1980s-90s construction that covers this whole corridor. That means steel sectional doors, usually 16x7 for a double bay, hung on extension springs with a cable running down each side to a drum or pulley at the bottom bracket - not the torsion-and-drum setup that newer builds get. Extension spring cable is thinner gauge than what goes on torsion systems, and after three-plus decades of summer heat cycling through the garage, the galvanized coating on that cable wears thin at the pulley contact point. You'll see it fray there first, not at the bottom bracket where people expect it. On a 16-foot double door, a frayed cable under spring tension doesn't just squeak - it can let one side of the door drop while the other holds, racking the whole section against the track. Heat matters here too: this area sits in a moderate-heat climate band, so the garage itself runs warm enough most of the year to dry out the factory lubricant on that cable faster than it would in a cooler market, which speeds up the wear nobody's looking for.

We'll say this plainly: don't do this one yourself. A frayed cable on an extension-spring door means the spring above it is still under full tension, and releasing that tension without the right bars and a second set of hands is how people lose fingers or get hit by a swinging bracket. If you're handy and want to do something useful before we get there, you can visually check whether the fray is on one side or both and whether the door is sitting level in the opening - that tells us a lot before we arrive and saves time on-site. Everything past that, leave the spring alone.

Once we're on-site with the right cable length for a 16x7 or 9x7 door, the cable swap itself runs well under an hour for most of these 1987-era steel doors - releasing tension, pulling and replacing both cables, re-tensioning, and running the door through a few cycles to check for drift. Where it runs longer is if the bottom brackets are elongated or the drums show wear, which we find more often on doors that have never had the cable serviced since the house was built. We travel in from Grapevine, so plan your appointment window around that drive rather than a walk-up same-hour fix.