Thank you all for your helpful replies. Here’s a tally for those who expressed an interest. A-1 Sewer— recommended by several people. They only do sewer lines, not general plumbing. Other recommendations: Al Huntermark 412-576-4765 Ky at Greater Pittsburgh Plumbing 412-223-2560 (recommended by two people) Terry’s Plumbing 412-364-9114 Poilucci Plumbing 412-782-5050 Brickhaas Plumbing Matt Mertz Good luck to all and thanks again for the helpful responses.