Drainworks responded promptly to our call, identified the core problem (tree roots), and scheduled work so that it wouldn't run over the weekend if additional problems were found. Since of course additional problems were found, this was appreciated. The workers were courteous, put down fabric to protect the floors, and cleaned up after themselves.
The reason we docked them a point was because the final camera inspection wasn't done the day they finished the work, it would have been much more convenient than setting up yet another appointment. Also, I would have appreciated seeing the damaged pipe length at the end, to get a sense of what we just spend several thousand trying to fix.