Yucaipa sits in a moderate-heat climate band, which is kinder to door hardware than the blazing interior valleys - springs and openers here tend to fail from age and cycle count rather than heat-cooked lubricant. Combine that gentler climate with a median build year of 1978, and you get hardware that's old but not cooked, which is exactly why so much of it is still hanging there, original, decades past when it should've been swapped. Across the broader area - 136,012 owner-occupied houses among 250,595 households - the building stock runs newer on average than Yucaipa's own numbers, which is part of why we open every Yucaipa quote by checking the bracket and jamb before we talk about the door panel at all.