Most garage doors in Elmhurst went up around 1964, which puts them eight years ahead of the 1976 median we see across the rest of the service area we cover. That earlier build date matters because it's a different door: single-layer steel, no foam core, hung on a torsion spring wound to specs nobody wrote down for future reference. A lot of these are still the original 16x7 double or a pair of 9x7 singles, never swapped out, just serviced piecemeal over sixty years. The steel on these doors is thinner than what goes up today, and the tracks were set for a lighter panel than some owners have since bolted onto the same hardware after a cosmetic upgrade. When we get a call here, the first question isn't what's broken - it's how old the drum and cable drum combo actually is, because on a door this age, one worn part usually means the whole spring assembly is close behind it. We don't guess at that on the phone. We look at the door in person before we quote a fix.