Housing across the service area was built mostly between 1938 and 2005, with the median landing around 1980, and the heaviest concentration of stock going up during the 1980s and 90s boom across the 28 named areas we cover. That means a large share of the garage doors out there are original or close to it - torsion springs rated for a certain number of cycles that were installed thirty-plus years ago and have never been re-tensioned or swapped.
The climate does the rest of the damage. This is a cold, severe-winter climate band, and cold is hard on garage door hardware in specific ways: steel springs lose a small amount of tension every cycle, and cold makes that steel more brittle at the exact moment it's under the most load, first thing on a freezing morning. Lubricant that was fine in summer thickens and drags on rollers and hinges. Weatherstripping that was pliable in July turns stiff and cracks in a hard freeze.
Put a house from the 1980s building boom together with a real winter, and a garage door that never gets serviced is running on borrowed time. That combination - older original hardware plus a genuinely cold climate - is the reason maintenance calls cluster here the way they do.