Elmhurst's housing stock centers on 1964, which puts a lot of these garages in the same window as the broader area's 1960s-70s build wave. Doors from that period were often installed with steel hardware that's now past its rated cycle count, and if the door has never been serviced, the failure shows up as a spring that lets go without warning - usually on a cold morning, since the metal contracts and the extra resistance is what finally snaps a spring that was already close to done.
The other common call is a door that reverses off the track when a roller finally gives out. On older single-car doors especially, worn rollers let the panel walk sideways under load until it jumps the track entirely. Both of these read as "the door won't open" to the homeowner, but they're different jobs on the truck, and telling us which one it is when you call saves time on-site.