When a door jumps its track, most Parker homeowners try to force it back into the channel before calling anyone. Don't. A door hanging on one cable with the other roller popped out of the rail can drop without warning, and pushing on it just bends the track further. Call, describe what you're seeing (does it hang at an angle, is a cable dangling, did you hear a bang before it happened), and we'll tell you over the phone whether it's safe to leave alone until we get there.
We run out of Allen, about 4 miles from most of Parker, so there's no separate branch or crew stationed in town - one truck, one appointment window, same as any other stop on that route. If you need the door closed for security before we arrive, we'll walk you through wedging it without stressing the bent section any further.
Worth saying up front: if the track is torqued in more than one spot or the header bracket has pulled loose from the framing, we may tell you on-site that a repair isn't worth chasing and a full replacement is the better spend. We'd rather say that at the door than have you pay twice.