Most of the houses we get called to in Coeur d'Alene went up somewhere between 1950 and 2003, with the bulk of that stock dating to the 1980s and 90s across the six main areas of town. That matters more than people think. A door and opener installed when a house was built is now anywhere from 20 to 70 years old, and torsion springs are rated for a number of open-close cycles, not a number of years - once a household hits that count, the spring is going to go, usually without warning.
Add in the cold moderate climate band we sit in. Steel contracts in the cold, grease stiffens, and the metal fatigue that's already working on an older spring speeds up every winter. A door that's been fine for years will suddenly bind, sag on one side, or drop hard and fast when a cable finally lets go. We see this pattern constantly on homes from the 1980s and 90s vintage that make up most of the local market - original hardware, original springs, decades of cold-weather cycling, and nobody's touched it since move-in.