Princeton's housing stock skews newer than a lot of the area we cover - median build year here is 2012, and most of what we see on these streets is wider double-car doors, 16x7 steel sectional units on longer horizontal tracks. That size matters for an off-track repair. A door that width carries more roller load per side, and when it jumps track, the rollers usually bind against the track flange rather than popping clean out, which changes what we're pricing.
We don't quote a number here because we haven't priced this specific job for you yet - it depends on whether the track itself bent, whether a roller sheared, and whether the cable came off the drum in the process. What we can tell you is the pattern: on a 2000s-era double door, off-track calls in this area run heavier on labor than parts, because the track sections on wider doors are longer and take more time to re-square once they've been knocked loose. A single-car door off its track is usually the cheaper fix of the two, and we still see those on some of the older lots mixed into Princeton's newer subdivisions.
If your door has come off track more than once in the same spot, that's a hardware wear issue, not bad luck, and it's worth fixing the cause instead of resetting the track again.