The calls we get from Erwin cluster around a few things. Extension springs that have stretched out and lost tension, so the door feels heavy or won't stay open on its own. Rollers worn smooth on their axles from decades of use, making the door jump or stick partway up the track. And openers that were added after the fact to an older door, where the mounting bracket is working against hardware it wasn't matched to. Less common, but it shows up: panel rust at the bottom edge where ground moisture sits against older steel over a cold winter. If your door is doing any of that, it's usually fixable without a full replacement - though once the track itself has warped on an old single-panel door, patching it stops being worth the cost.