Bloomingdale sits in a mild temperate band, so we're not chasing the frost-heave foundation shifts or extreme heat warping that cause trouble in other parts of the country. What ages a garage door here is cycle count and time, plain and simple - open and close it twice a day for 30-plus years and the spring steel fatigues even if nothing ever looks wrong on the outside.
Most of this neighborhood was built out in the same stretch, so a large share of the doors are hitting that same age wall at roughly the same time. That's different from a street with a mix of 1960s and 2000s construction, where failures are scattered across different hardware generations. Here, when one original opener on a given street starts slipping its gears, it's a decent bet the house two doors down is carrying the same risk, just a few months or years behind it.