Most of the houses we work on across this service area were built between 1968 and 2003, with the bulk going up in the 1980s and '90s. That means a lot of original torsion springs and openers that are thirty-plus years old now, still hanging on because garage door hardware doesn't fail on a schedule, it fails when it fails. Common calls: a spring that's lost tension enough that the door won't stay up, rollers that have worn their tracks oval, and openers with drive gears that have finally stripped.
The climate band here is mild temperate, not the hard freeze-thaw cycle that chews up hardware up north. That spares us some of the cracking and seizing you'd see elsewhere, but it doesn't spare doors from age. A spring rated for a certain number of cycles wears out on cycle count and humidity exposure, not on a calendar.