Murphy is a small town by household count - around 5,907 of them, a fraction of the housing stock spread across the wider Plano service area. That size matters because it means the town went up fast, in one era, instead of layering decades of construction on top of each other. Most Murphy houses were built close to 2005, squarely in the same 2000s wave that covers most of this region. That means the garage doors themselves are almost all steel sectional doors on standard-lift torsion springs, made for openers with photo-eye safety sensors rather than the older mechanical reversal systems.
What fails is what fails on 2000s-era doors after enough years of daily cycling: torsion springs that were sized for a builder-grade door and are now worn thin, plastic idler pulleys that have gone brittle, and openers original to the house hitting the end of their circuit board life. We don't see the older curved-track low-headroom setups or the one-piece slab doors that show up in towns with older housing stock - Murphy's age profile doesn't produce those. The failures we get called out for here are consistent, not scattered, because the houses themselves are consistent.
The moderate heat band this area sits in doesn't stress hardware the way real freeze-thaw climates do, so we're not chasing weather-cracked panels in Murphy. It's wear, not weather.