Most of the garage doors we get called out on in Sanford went in during the same stretch of construction: 1966 to 2002, with the typical house in this service area dating to 1984. That's not a coincidence. A torsion spring is rated for roughly 10,000 cycles, which sounds like a lot until you do the math on a door that's opened and closed twice a day for close to forty years. The same goes for openers - a lot of the chain-drive units still running in these houses are original equipment, long past the point where the gears and capacitors inside them are reliable.
Across the 31 named communities in this part of the service area, the pattern holds: 1980s and 90s construction dominates, which means 1980s and 90s hardware dominates too. The climate here is mild temperate, so we don't see the freeze-thaw cracking that kills doors up north. What we do see is heat and humidity working slower on the same parts - grease drying out in the torsion spring coils, bearings seizing from corrosion rather than cold, and steel rollers pitting inside their tracks. It's wear, not weather shock, and it sneaks up on people.