The area sits in a mild temperate climate band, so Highland City doors aren't fighting the freeze-thaw cycling or heavy snow load that wear out hardware fast in other parts of the country. What ages a door here instead is straight cycle count and sun - garages used daily, springs and openers doing their job thousands of times over a quarter century with no ice or deep cold to blame. With roughly 4,333 households in Highland City and most of those homes dating to around 1999, a large share of the original hardware is approaching the point where springs, rollers, and first-generation openers all start failing around the same age, not because of weather events but because that's simply how long the parts were ever built to last.