The mild temperate climate here means we're not dealing with the freeze-thaw cracking or extreme heat expansion that wears out seals and hardware faster in other parts of the country - that's a point in Newark's favor, and it's part of why doors from the 1970s are still running at all. What does wear them out is straight mechanical fatigue: five decades of daily cycles on original torsion springs and cables that were never designed to last that long. Newark's median household income, at $164,909, runs lower than the roughly $193,633 median across the broader Fremont service area, which in practice means more owners here are repairing a door for another five years rather than replacing it outright - a reasonable call on a door that's mechanically sound but cosmetically tired.