Elmhurst's housing stock centers on a median build year of 1964, a decade or so ahead of the 1976 median across the wider service area we cover. That gap matters more than it sounds. Doors going up in the early-to-mid 1960s came standard with steel-and-wood sandwich panels, single-torsion springs mounted on brackets that weren't always centered right, and openers - if a house even had one - on chain drives with no safety reversal sensors at all. A lot of that original hardware is still up. Not because anyone's been careless, but because a torsion spring on a well-built door from that era can run twenty, thirty years before it lets go, and a track that's never been bumped by a car doesn't need touching. When we get a call from this side of town, we're often looking at a door that's never been serviced since the house was built, on hardware nobody stocks new anymore. That's a different job than walking into a house from 1995 with a stamped steel door and a screw-drive opener. Same trade, different parts, different failure points. We show up ready for either, but the 1964-era door is the one where we bring extra bracket hardware because we already know what we're likely to find.