This region sits in a mild climate band with occasional freeze, which is easier on garage door hardware than a hard winter climate but not free of stress. Steel springs and cable still see temperature swings between damp fall mornings and the occasional cold snap, and that cycling of expansion and contraction adds up over the decades most doors in this area have been in service.
Because the housing stock here runs mostly 1980s and '90s construction, a large share of doors are old enough that the original springs and cable are near or past their rated cycle count, but not so old that homeowners think of the door as due for anything. That gap - hardware quietly aging out while everything still looks fine - is where a lot of these emergency calls come from. Nearby areas like Bryn Mawr-Skyway, two miles out, and Fairwood, three, share the same build era and see the same pattern, which is part of why this is a service-area issue, not a one-neighborhood one.