The climate across this part of Southern California sits in a mild temperate band, which sounds like it should be easy on a garage door - and mostly it is, no freeze-thaw cracking, no road salt. But mild doesn't mean static. Steel panels from the late 1970s and early 1980s expand and contract through daily heat cycles for decades, and on a door that's never been repainted, that cycling eventually prints as a bow across the panel face, usually on the side that catches afternoon sun.
At roughly 27,132 households, this is a smaller pocket within the wider coverage area, and household income here runs about $96,190, a bit under the $104,565 median for the territory as a whole. That matters less for the fault itself than for the fix: a lot of owners here are weighing a single-panel patch against a full door swap, and the 1980 build year is usually the deciding factor - the hardware is old enough that if the opener or springs are also near the end of their life, replacing the whole door can cost less over time than chasing discontinued panel stock piece by piece.