When you call someone for a pipe leaking, you expect the plumber will actually hunt down and find the source of the leak. Even paying for the exploration is fine, just to have the damage stopped.
To show up at someone’s house and state “you need to have your drain system completely redone, in the ceiling and below the floor” without even finding the source of the leak is just incompetent and lazy. After asking twice exactly where the leak was coming from and how to get it to stop and hearing that the only way I was getting any help was to agree to re-plumb, I thanked him for his time, and frankly, wasting mine.
This is a terrible service for plumbing and I wouldn’t recommend anyone waste their time when there are many other plumbers that actually want the work.