What Can Go Wrong
Across the wider service area the median house went up in 1983, but Duncan's median build year sits at 2001 - call it a generation newer. That matters for what breaks. A 1983 door is more likely to be riding on an old extension-spring setup with a cheap non-contact sensor retrofit bolted on later. A 2001 door in Duncan is more likely to have come with a factory torsion system and a belt or chain opener already wired for a safety reversal sensor - which means when it fails, it's usually the opener logic board, a worn drive belt, or a torsion spring rated for a heavier insulated panel, not the older hardware we see closer to the center of the service area.
Cold-moderate winters still do the same thing to any door built in any year: steel contracts, lubricant gums up, and a spring already near the end of its cycle count lets go on the first hard freeze morning when the door gets used twice as much. In Duncan's newer stock that usually shows up as a torsion spring snapping clean rather than a cable fraying first, because the cable routing on newer tracks is better protected. Either way, the door comes down fast and won't come back up until that part is replaced.
The DIY Question
If the door won't open and you can see a spring coiled open on itself above the opener, stop
That's stored tension that can break a finger or worse, and on a newer torsion system like most of what's in Duncan, the winding bars and clamps aren't something to improvise with a wrench from the kitchen drawer.
What you can check yourself
The wall button battery, whether the opener's lock switch got bumped, and whether the sensors at the bottom of the track are aligned (a knocked-loose sensor is a five-minute fix and costs you nothing to rule out before calling anyone). If the door moves but binds partway, that's usually a track or roller problem, not a spring problem, and it's safer to leave alone too - a bent track under load can jump the rollers.
Honest limit here: we don't talk anyone through a torsion spring swap over the phone
And we won't sell you the parts to try it. It's not a trust issue, it's a physics one - the spring stores enough force to do real damage, and the newer systems common in Duncan use different wind tension than the older ones, so guessing the turn count is how people get hurt.
The Cost of This Job
We don't have a Duncan-specific price list to quote here, and listing a number that's really Greer's rate wouldn't be honest to either town. What we can tell you is what drives the cost on a call like this: whether it's a spring, a cable, or an opener board, whether the door is a single or double, and whether the broken part took anything else down with it when it failed.
Duncan's median household income runs a bit below the service area's $55,671 average, at $51,596, and with 1,676 households in the area, it's a smaller, newer-built pocket compared to the roughly 97,161 households across the full territory. None of that sets a price - it just means when we quote a job out here, we're quoting the part and the labor for your actual door, not a boilerplate number pulled off a bigger page.
Booking a Visit
We run out of Greer, about 5 miles from Duncan, so a call here doesn't go through a dispatcher juggling the whole territory - it comes straight to the truck that covers this stretch. Tell us what the door is doing: stuck open, stuck shut, making a bang before it quit, or just dead silent at the opener. That tells us what to load before we leave.
We can't promise a response window on this page - that detail lives on the main Greer emergency page, not here, because it depends on where the truck already is that day. What we can tell you is that a 5-mile run is a short one, and a call that comes in with good detail about the fault gets the right spring or part on the truck the first time instead of a second trip.
What the Fix Involves
On a torsion spring job
The most common emergency call on newer doors like Duncan's - the truck brings matched spring pairs rated to the door's weight, winding bars, and vise grips to secure the door during the swap. Both springs get replaced together even if only one broke, because the other one is on the same clock and failing it separately a few weeks later is a second emergency call nobody wants.
If it's the opener instead
More common on newer installs with belt-drive units - the check starts at the logic board and the drive belt before anything gets swapped, since a bad capacitor or a stripped gear can look identical to a dead motor from the outside.
One thing we won't do
Push a full door replacement on an emergency call just because the door is newer. A 2001-era door with a blown spring is almost always a repair, not a replacement - the panel and track are usually fine. Replacement only makes sense when the track is bent beyond pulling straight or the panel itself is cracked, and we'll say so on site rather than upsell it.
