Edmonds houses center on a 1973 build year - a decade ahead of the 1985 median we see across the rest of the towns we cover. That earlier build date matters because openers from that era, if they haven't been swapped yet, are almost always a basic chain-drive unit on a steel rail bolted straight to a wood header with no reinforcement plate. After fifty years, the gear set inside that motor housing has usually worn past the point of a simple fix, and the chain has stretched enough that the door doesn't seat square anymore. Add to that the cold, damp climate this whole corridor sits in - exposed chain, sprocket, and the motor's external hardware corrode faster here than they would somewhere dry, and that corrosion is usually what finally kills the unit, not the motor itself. We see openers in Edmonds that have never been touched since the house was built, which is longer than almost any manufacturer rates the part for. The honest answer, most of the time, is replacement rather than a patch repair - chasing parts for a fifty-year-old chain-drive unit usually costs more in labor than a new belt-drive opener costs outright.