Cerritos houses cluster around a median build year of 1974, which puts a lot of original steel and early aluminum panel stock on tracks that have been repainted more than once but never fully replaced. That's newer than the 1968 median across Huntington Beach's wider service area, so the doors here tend to be one design generation ahead - lighter gauge steel, slightly different panel spacing, hardware that's more likely to still be in production. The mild temperate climate this whole region shares doesn't crack panels with freeze-thaw the way it would inland or up north, so when a panel fails here it's almost always mechanical: a car bumper, a basketball, a spring that let go and buckled the bottom section on its way down. Sprinkler overspray and years of UV do the slow damage - chalky paint, hairline stress cracks along the bottom panel where water sits. None of that is dramatic, but it adds up on a door that's now approaching fifty years old in a lot of these neighborhoods, even if the house itself has been remodeled twice since.