Housing in the Sparks service area was mostly built between 1938 and 2003, with the heaviest concentration going up through the 1980s and 90s across the five main areas here. That means a lot of original torsion spring setups are now 25 to 40 years old - well past the cycle count most springs are rated for, even with light use. Steel fatigues on a schedule whether or not anyone's paying attention to it, and a spring installed during that build boom is due or overdue. On top of the age factor, this area sits in a cold climate band with severe winters, and steel contracts and loses tension faster through repeated freeze-thaw swings than it would somewhere milder. Garages that aren't insulated see bigger temperature shifts inside the space, which stresses the spring coils and dries out lubricant on rollers and hinges faster than you'd expect. The combination - aging hardware from that 1980s-90s building wave plus a hard winter climate - is why spring failure and stiff, slow-moving doors show up here on a predictable cycle rather than at random.