Most of the housing stock in our service area went up between 1950 and 1994, centered around 1976. Ortonville sits right in that window, with a median build year of 1972. That means a lot of these garages were framed for openers that don't exist anymore - quarter-horsepower chain units with exposed gears, no rolling code, and rail systems that don't match today's mounting brackets. When one of those finally quits, we're not swapping a part, we're re-engineering the header bracket and the rail angle to fit a modern unit into a 50-year-old frame. Cold makes it worse. This area sits in a severe cold climate band, and an unheated garage built in the early '70s wasn't insulated with today's assumptions. Grease in an old gearbox thickens in January, plastic drive gears get brittle, and openers that limped along all summer start binding or slipping their limit switches the first hard freeze. That combination - 1970s framing plus real winters - is why opener failures here cluster in November and again in March, not evenly through the year.