The typical Mount Vernon house went up around 1967, which puts most of the neighborhood squarely in that mid-1960s wave of one-piece and early sectional doors on side-mounted torsion springs - hardware that isn't stocked on shelves the way modern extension springs are. Fifty-plus years on, that means the springs, drums, and bearing plates we find are often the originals, or a first replacement from decades back that's now due again. Add the region's cold-climate band: hard freezes stiffen the lubricant in torsion springs and dry out nylon rollers, so the door that worked fine in October starts binding or slamming down hard once the temperature drops. That combination - old hardware plus a real winter - is why a lot of our Mount Vernon calls land between late fall and early spring, and why the fix usually involves more than a squirt of oil.