Springs fail from cycle count, not calendar age, and the 2000s building boom that put up most of the housing stock across this service area means a large share of doors are now well into the range where original springs give out. A house built in 2005, the median year for construction here, has had roughly two decades of daily door cycles on the same coil.
Climate plays a smaller role here than in colder regions. This area sits in a moderate-heat band, so we don't see the extreme cold-snap failures that show up further north, where metal contracts hard overnight. Instead, springs here wear out the ordinary way: thousands of open-close cycles, sun and heat cycling the coil, and the slow metal fatigue that comes with a decade or two of daily use.
With 56,975 households and 36,095 owner-occupied houses spread across the towns we serve, the pattern repeats block by block. A neighborhood built in one construction wave tends to have springs failing in the same rough window, which is why some streets seem to have a run of garage door calls the same season.