Masterworks Plumber's Doug is very knowledgable, and keeps himself updated by learning latest information on his trade. Had very many years of experience under his belt. More than 25 years if I remember it right. Service is very professional. He arrives on time as promised. Informs the Customer of cheaper options if so desired. Informs the owner about what is being done, and answers questions at a level that the Customer will understand. So as a Customer, it was a rare privilege to be informally educated on something I previously had no knowledge of . Service is very reasonably priced. Calls are answered immediately at his office number. HIGHLY RECOMMENDABLE!!!