Most calls start with the door hanging unevenly, one corner low, or a loud bang followed by the door refusing to open. Sometimes it's slower: a cable that's started to fray will make a light ticking or scraping sound near the top of the door's travel, right where it winds onto the drum, weeks before it lets go entirely.
On homes in this area with older one-piece or early sectional doors - and with housing here dating back to 1938, with a lot of it from the 1980s and 90s - the cable and drum setup is often original or a first-generation replacement, which means the cable gauge doesn't always match the door's current weight if panels or insulation were added later.
If you catch it early, at the ticking or fraying stage, it's a controlled repair. If you catch it late, at the snapped-and-crooked stage, the door has usually come off the bottom bracket on one side and the track has taken some abuse too, which turns a cable job into a cable-plus-track job.