Jenison's housing stock centers on 1973, which puts most garage doors here squarely in the 1960s-70s band that makes up the bulk of this part of the service area. Doors from that period are almost always single-layer steel on extension-spring hardware, not the torsion setups that came standard later. Extension springs run alongside the horizontal track instead of over the header, and the roller brackets on that hardware were never built to the tolerances we see on newer doors. Add in a winter that this region's climate band classifies as severe cold, and the track rails contract just enough that a roller that's running a little rough starts catching the lip instead of riding through it. One hard catch and the door walks off the rail, usually on the side that gets more direct wind. We see this pattern often enough in Jenison that it's one of the more predictable calls we take from this suburb - not a mystery fault, just old hardware meeting a cold snap.