Teays Valley sits in the same cold-moderate climate band as the rest of the Charleston area, and that matters more than people think for a spring that's been in service since 1992. A hard cold stretch stiffens the lubricant on an aging torsion spring and turns a spring that's already marginal into one that snaps instead of just squeaking through winter.
It's also a wealthier pocket of the service area than most. Median household income here runs $106,798, against $61,160 across the broader area, and that shows up in the hardware people bought when these houses went up. Houses in this bracket were more likely to get a belt-drive opener with a battery backup, or a heavier insulated door, rather than the bare steel panel and chain-drive setup that was standard on the same-era builds elsewhere.
With around 5,659 households in the valley, that's a lot of openers hitting the same age window within a few years of each other, which is part of why we see clusters of the same failure - battery backup boards dying, belt-drive gears wearing thin - inside a short run of calls.