Gardendale's housing stock centers on 1990, noticeably later than the median build year of 1980 across the wider Birmingham service area. That ten-year gap matters more than it sounds like it should. A house built around 1990 usually came with a lighter-gauge steel door, a standard torsion spring set sized for that door's lower weight, and - if it was built after 1993 - factory photo-eye safety sensors on the opener rather than a retrofit. What we find on these doors isn't the brittle, oversized hardware you get on an older Birmingham-area house. It's more often opener logic boards that have simply aged out, nylon rollers worn flat from twenty-plus years of cycles, and torsion springs rated for a lighter panel that someone later swapped for a heavier insulated one without re-rating the spring. The failure mode is different: less "the whole system is original and undersized," more "one component was replaced out of spec somewhere along the way."