Algonquin's build year sits at 1994, which puts it squarely in the era when torsion springs became standard on new construction and extension springs started fading out. That's a real difference from the older stock nearer Schaumburg, where a lot of doors are still running original extension-spring hardware from the 1970s. It also means most Algonquin garage doors are sized and weighted for a torsion system from day one - heavier steel panels, factory opener brackets built around a torsion bar, not retrofitted onto older side-mount hardware. When a torsion spring fails on a 1994-era door, the fix has to match the original engineering: right wind, right wire gauge, right drum spacing. Get that wrong and the door either won't balance or it'll wear the opener out chasing an uneven lift. With 10,914 households in Algonquin and a median income of $131,753 - noticeably above the $112,168 median across the broader service area - most of what we see here are original torsion systems reaching the end of their spring cycle life around the same age, not a patchwork of decades-old repairs.