Jack the Plumber was recommended to us by a friend as being "one of the last trustworthy tradespeople around". We have certainly had good experiences with him. He has diagnosed and fixed a few different plumbing problems in two different houses. The first job we had him do was a large one -- replacing the old drain out to the city line with a new one. We got competitive quotes and his was (by far) the lowest, and we were pleased with the results. He's always been very responsive when we call.