With 4,916 households in Lewisburg, most sitting in that late-70s to early-80s build range, the same few failures repeat across the area. Doors sag at the bottom corners because the roller tracks were never plumb to begin with, not because anything broke that day. Openers from that era, where they haven't already been swapped out, are chain-drive units that grind louder every year before the gear finally strips.
Our winters here are cold enough that steel contracts and grease stiffens, which is harder on hardware that's already 40-plus years old than it is on anything newer. A door that limps along fine in September can refuse to open on the first hard cold morning because a spring that was already weak finally gives.