Most of the garage doors we get called out for in Aurora sit on houses built between 1958 and 2005, with the bulk of that stock going up in the 1980s and 90s across the area's 22 named neighborhoods. That means a lot of torsion springs and extension springs that are now thirty-plus years old, running on the original drums and bearing plates, or on a first replacement spring that's finally hit the end of its cycle count.
The cold-severe climate band Aurora sits in makes it worse. Steel contracts hard in a deep freeze, and a spring already near the end of its rated cycles is more likely to snap on the first single-digit morning of the season than in July. Nylon rollers get brittle the same way, and cables that have a little fray in them tend to let go when the metal is cold and stiff rather than warm and forgiving.
We also see a fair number of openers from that same building era still running original drive gears or capacitors. They weren't built to last fifty years, and a lot of them are past due. None of this is a defect in how the houses were built - it's just the math of a housing stock that's mostly 40 to 60 years old sitting in a climate that's hard on metal.