Most of Independence went up around 1999, a good fifteen years newer than the 1984 median across the wider Florence service area. That gap matters more than it sounds. Builder-grade hardware from the late 90s - the torsion springs, the stamped steel rollers, the factory openers - was rated for a cycle count, not a lifetime, and a door opened twice a day for twenty-five years has used most of that count up. Nobody in this neighborhood has had a reason to look at it. The door still goes up. It just goes up a little slower, a little louder, with a little more strain on the opener motor than the motor was built to take. The spring that came with the house is very likely still the spring on the house, and 1999-era torsion springs are not the heavier-gauge stock you'd find on a door installed in the last ten years. When a spring from that build era finally lets go, it tends to go all at once rather than giving you a slow warning.