Alameda's housing stock is heavily weighted toward 1960s and 70s construction across the city's 53 named areas, and that era of building used torsion hardware and track hangers that don't match what's sold in home centers today. When a spring snaps or a roller shears off, the replacement part often has to be matched to an older mounting pattern rather than grabbed off a shelf. The mild temperate climate here is actually part of the problem in a quiet way - because there's no hard freeze to force an obvious failure, homeowners often run a worn spring or a bent track well past the point where it should've been replaced, because nothing ever looked broken until it was. With 172,438 owner-occupied houses across the service area and a median household income of $163,199, a lot of Alameda owners can afford to replace an opener outright rather than keep patching a chain drive from the 1990s, and once we're on site that's often the more sensible call than chasing one more repair.