Perris sits in a moderate-heat climate band, and that matters more for a 1999-era door than people expect. Vinyl seals and nylon rollers on a door that age have been through roughly two and a half decades of daily heat cycling, and that's what actually cracks the weatherstrip and dries out the roller bearings - not one bad summer, but all of them stacked up. Combine that with the housing stock: a large share of homes across this service area were built in the 1980s and 90s, and Perris's own median year, 1999, puts it on the newer end of that run, but still well past the point where original hardware is holding up. Household income here runs about $82,523, close to the $83,246 median across the wider area, which tells us these are mostly owner-occupied homes where people replace a door when it's actually due, not before - which is exactly the pattern we see when we go out on these calls.