Bartlett's housing stock centers on 1992, which puts most garages here well past the extension-spring era. By the early 90s, builders had standardized on torsion springs mounted on a shaft above the door, wound to counterbalance a steel sectional door rather than the old single-panel wood slabs some of the 1955-era construction in this service area still carries. That matters for the repair: a torsion spring job means pulling the old spring off the center bracket, matching wind direction and wire gauge to the door weight, and re-tensioning on the shaft rather than stretching a new cable along the horizontal track. It's a 45-minute-to-90-minute job for a tech who's done it, longer if the drum or cable is worn enough to need swapping at the same time. We check both springs on a double door even if only one broke, because the other one is usually close behind it on the same wear clock. We're driving 7 miles out from Hoffman Estates to get to Bartlett, so we bring both common torsion sizes rather than guessing and making a second trip.