The standard failure here isn't a dramatic spring snap, it's a slow mismatch between 1971 hardware and modern opener demands. A lot of Rochelle garages had openers added or replaced well after the door itself, and the motor ends up doing the lifting work that worn springs and dry rollers can't. That's why a door can run fine for years and then seem to fail overnight: the opener was quietly compensating until it couldn't anymore.
Cold-severe winters make this worse specifically for houses this age, because steel contracts, grease stiffens, and a track that was slightly out of alignment in August becomes a binding point in January. We see this pattern across the 1960s-70s stock that makes up most of the 22 areas in our territory, and Rochelle's 1971 median puts it right in the middle of that group.
The honest limitation: if a door's track is badly rusted or the panels are rotted at the bottom, maintenance won't fix that. At that point we'll say so rather than charge for a tune-up that buys you six months.