Torsion and extension springs wear out on a schedule tied to age and cycle count, not to weather drama, and Benton's housing stock puts a lot of doors right in the failure zone. With a median build year of 1983, a large share of the springs out here are original or one replacement removed from original - meaning they're 30 to 40 years into a part rated for roughly 10,000 cycles. Do the math on a door opened twice a day for four decades and you land well past that number. The moderate heat band this area sits in doesn't cause the kind of spring failure you see from extreme cold-snap brittleness, but it does mean steady expansion and contraction on aging steel year after year, which fatigues a spring that's already near the end of its rated life. Add in that a lot of these 1980s-built garages still run the original hardware because nobody's had a reason to touch it, and you get springs failing not from one bad day but from four decades of ordinary use finally catching up.