Winnetka's median home dates to 1938, which puts a lot of these garages ahead of the wider service area's 1963 median. A door built for a house from that era wasn't sized or hung the way a door from the 1960s or 70s was. You're more likely to find a narrower single-car opening, an older wood or early steel panel, and hardware that was retrofitted at some point rather than installed with the house. That retrofit is usually where the trouble starts - a torsion spring or an opener bracket bolted onto framing that was never meant to carry it. When that connection fails, it fails without warning, and it fails on hardware that isn't a straightforward swap. We come from Skokie, about 5 miles out, so we're not guessing at what an older Winnetka garage looks like when we get the call - we're planning the truck for it before we leave.