Minnesota sits in a severe cold climate band, and that matters more on a door built in 1959 than on one built last year, because the original doors on these houses went up before insulated panels were standard. An uninsulated steel door in a severe-cold climate doesn't just let heat out - the temperature swing between the garage and the house side of that wall stresses the door's own hardware, the hinges and track bolts, in a way an insulated panel doesn't.
Across the wider service area we cover from Edina, there are 238,610 households and 114,022 owner-occupied houses spread over 48 named communities, most of it 1960s-70s stock. Crystal's 9,307 households sit right at the early edge of that range, which means the fault pattern here shows up a touch earlier than it does in the newer pockets a few miles out: springs and rollers on doors that have already seen one Minnesota winter too many, on hardware that was never built to handle this climate in the first place.