A house built in 1974 has had its garage door opened and closed something like 15,000 to 20,000 times by now, more if the garage doubles as a workshop or storage. The springs, rollers, and cables in that count are usually the same ones the builder installed, because a working door doesn't get anyone's attention until it stops working. Cerritos sits in the mild temperate band this whole area shares, so we're not dealing with hard freeze-thaw cycles that crack panels or swell wood jambs - the failures here are almost entirely mechanical fatigue and dried-out lubrication rather than weather damage. That's actually good news: it means most of what breaks was going to break eventually regardless of the year, and it breaks in predictable ways - spring first, then rollers, then the opener's gears once it's straining against a spring that's lost its tension. Household income in Cerritos runs higher than the surrounding service area, and we mention that only because it tends to mean people replace an opener before it fully dies rather than running it into the ground, which changes the mix of repair calls versus replacement calls we get from this side of town.