Murphy's median household income runs $165,109, well clear of the $121,724 median across the rest of the Plano Garage Door Pros service area. That gap matters for one reason: at this income level, most owners call for a new door well before the old one fails outright. A spring that's starting to sag, an opener that grinds on the second try, a bottom panel that's dented from a decade of teenage drivers backing out fast - these get replaced, not nursed, because the labor to keep patching an aging system costs more against the household budget than swapping it does.
The houses themselves tell the other half of the story. Murphy's median build year sits at 2005, a few years past the 2001 median across the wider service area, which itself spans housing built between 1973 and 2015. A door installed here in the mid-2000s came with a steel skin, foam-core insulation, and a torsion spring sized for that specific weight. Fine when new. After fifteen-plus years of Texas heat cycling the panel and hardening the lubricant on the spring coils, that same setup is due, and it's due at the same age across most of the subdivision at once, not on some staggered replacement schedule.