A: Yes. Plumbers use shielded transition couplings (banded couplings) to connect new PVC to existing clay lines. It is code approved everywhere in the US.
A: Weekend/holiday rates can run $400–$600 per hour plus parts. A simple root blockage removal costs $250–$500; a broken pipe repair starts at $2,500. clay sewer pipe repair
"Did your parents buy a house built in 1965? You have clay sewer pipes. Here is the problem. (Point at roots). They look like this after 40 years. A: Yes