The climate here sits in a cold-moderate band, which isn't the brutal freeze-thaw cycle you'd get further north, but it's enough to matter on a door built with 1990s-era galvanizing. Steel coatings from that era hold up fine for years, then start flaking at the hinge points and spring coils right when a cold snap tightens everything up and adds load. With median household income in Gardendale running above $81,000, a lot of these houses have had one or two opener upgrades since they were built - newer motor, same thirty-year-old spring. That mismatch is common: a homeowner replaces the opener because it's the visible, noisy part, and never touches the spring underneath it, which is the part actually doing the lifting. When the spring finally goes, it usually takes the cable or a roller bracket with it, because the rest of the hardware was never upgraded to match the new motor's cycle count. That's the failure we see from doors of this era more than any other.