The housing stock across this service area runs from 1948 to 2014, but the median sits around 1977, and most of the 91 named areas we cover are dominated by that 1960s-70s build wave. Torsion springs on doors that old are well past their rated cycle count even on houses where nothing else has been touched. Steel fatigues with use, and a spring that's been doing its job quietly for four decades is close to its last one.
Cold makes it worse. This region sits in a severe cold climate band, and steel contracts and gets brittle in a hard freeze. A spring with ten percent of its life left can handle a mild October morning and snap on the first real cold snap of the season, usually right when someone's trying to leave for work. Garage doors that get used twice a day, every day, in a climate with real winters, wear out their springs faster than the same door would in a milder place.
Across the 457,002 households in this service area, 185,075 are owner-occupied houses - most with an attached garage and a door that's original or close to it. That's a lot of aging torsion hardware sitting in cold garages, which is why spring failure is the single most common emergency call we get.