Housing across our service area runs 1958 to 2003, with a median build year of 1983 - and Rialto sits right at 1982, almost dead center of that range. That means a lot of these doors and openers are original or close to it: torsion springs rated for a specific cycle count that's long since been used up, steel rollers that have worn their tracks, and chain-drive openers from before today's standard safety features. The moderate heat band this area sits in doesn't crack panels the way a harsher desert climate would, but it still dries out nylon rollers and plastic idler bearings over three or four decades, and that's usually what fails first - not the spring, the roller it rides on. With 26,856 households in Rialto's footprint, that's a lot of garages built in the same ten-year window, carrying the same hardware, aging out at roughly the same pace. It's not bad luck when three neighbors call in the same month. It's the housing stock doing what 40-year-old housing stock does.