Because Colonial Pine Hills' housing mostly dates to the early 1990s, the parts that get pulled off the truck out here are fairly predictable: torsion springs sized for a standard steel double door, steel roller tracks, and chain-drive opener boards and circuit boards from that generation. We also carry the weatherstrip and bottom seals that this climate chews through - winters here register as severe cold, and a seal that's cracked and brittle lets wind-driven snow pack into the bottom of the track.
We don't stock every opener logic board ever made, and on some of the older chain-drive units the exact replacement board isn't something we can grab same-day - occasionally that part has to be ordered in, which pushes a repair out a day or two. That's the honest limitation: most of this neighborhood's hardware is covered, but not every single model.