Snapped versus frayed cables
Most calls come in as one of two things: a cable that's snapped and dropped the door crooked in the opening, or a cable that's frayed and starting to pop strands off the drum, which is the warning sign before it breaks.

Spartanburg, SC
Broken or frayed garage door cables on Spartanburg's older housing stock. We explain why it happens here and what a repair involves before you call.
Job timing
We work cable repairs on lift cables, the ones that run from the bottom bracket up to the drum on the torsion shaft, across the whole Spartanburg service area - from Saxon and Arcadia in close to Boiling Springs, Pacolet, and Gaffney further out.
Most calls come in as one of two things: a cable that's snapped and dropped the door crooked in the opening, or a cable that's frayed and starting to pop strands off the drum, which is the warning sign before it breaks.
We don't stock every cable length and drum size off the truck for every door we might run into - some older one-piece setups and odd aftermarket openers take longer to source parts for, and we'll tell you straight if that's the case on your door rather than make you wait at the curb while we guess.
On a standard torsion-spring door with sectional panels, a cable swap is a same-visit job once we're on site. On older hardware, especially the kind still running on houses built before the 1980s, it can take a bit more time to match the drum pitch and cable gauge correctly, because that hardware wasn't standardized the way modern kits are.
Warning signs
A failing cable rarely announces itself cleanly. You'll usually see the door hang unevenly in the track, lower corner dropped, or hear a sharp pop followed by the door refusing to move at all.
Sometimes it's quieter: a cable that's visibly unwound a few strands near the bottom bracket, or one drum that looks like it's spooling wire unevenly compared to the other side.
On double doors especially, one side can go while the other still looks fine, which is what cocks the panel and jams it in the track. If you catch it at the fraying stage, it's a controlled repair.
If you catch it after the snap, the door's dead weight is now hanging on a spring and a single remaining cable, and that's not a DIY fix - the tension involved is enough to put someone in the ER.
Local causes
The service area runs through housing built mostly between 1938 and 2013, with the bulk of it going up in the 1960s and 70s across the 26 named communities we cover. That generation of door hardware - galvanized aircraft cable on steel drums, often with minimal corrosion coating by today's standard - was built for a lighter-use, shorter-lifespan expectation than what's installed new now. Add a cold-moderate climate with real seasonal swings, and you get repeated contraction and expansion cycles on the cable and the drum groove it sits in. That's what wears a strand thin at the same spot, year after year, until it lets go. Newer builds in the area with factory-coated cable and better drum tolerances see this far less. It's the mid-century stock, concentrated across towns like Woodruff, Chesnee, Jonesville, and the closer-in neighborhoods, where we see the most repeat cable failures, because the original hardware is still in a lot of those doors.
Pricing
We don't have a flat number to quote here without seeing the door - cable gauge, drum size, and whether the spring and bracket hardware are original or already replaced all change what parts we're pulling off the truck.
What we can tell you: if the cable snapped and dropped the door, that's usually a straightforward swap once we're on site, not a full hardware teardown, unless the drum or bracket got damaged when it let go.
If you're calling about a fraying cable before it breaks, that's the cheaper problem to solve every time, because it's a planned swap instead of an emergency one with a door stuck half-open in the track.
Ask for a number over the phone before the truck rolls if you want a sense of range, but know that the final figure depends on what we find once the spring tension is off and we can actually see the drum and bracket condition.
Questions
Leave it alone. A snapped cable means the door's weight is held by whatever's left - usually a spring and one remaining cable - and that setup can let go suddenly. Don't force the door up or down by hand, and don't run the opener. Call and we'll walk you through keeping it secure until we're there.
Most cables fray for weeks before they break, but the fraying happens up near the drum where you can't easily see it from the garage floor. On older hardware common in this area's mid-century housing stock, that wear is also faster because the original cable and drum coating weren't built to today's standard.
Not always, but check both. A cable under uneven tension can accelerate wear on the spring it's paired with, and a weak spring can put extra strain on a cable. We look at both sides of the system on a cable call rather than swap one part and send you off.
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Spartanburg Garage Door Pros repairs and installs garage doors, springs and openers in Spartanburg, SC and the surrounding area.