Meridian sits in a cold-climate band with real winter swings, and that matters more than people think for a door that's mechanically original. Steel contracts in cold weather, which tightens tolerances on tracks and rollers that were already worn from age. A torsion spring under tension behaves differently at 20 degrees than it does at 70, and that's often the push that turns a slow leak of wear into a sudden snap.
Because most of the service area's housing dates to 1977-2009 with the bulk from the 2000s, a huge share of doors are hitting spring-replacement age and cold-weather stress at the same time. This isn't a coincidence specific to any one street - it's the same hardware, installed in the same decade, now meeting the same winters. Houses built more recently, or much older with already-replaced hardware, don't show this pattern nearly as often.