I've used Duncan Plumbing two times and they're been very successful in solving the problems in my situation. The first time, the problem was a stopped sewer line. Some plumbers had left some lead strips in the pipe after all these years, which Duncan Plumbing found out by running a camera through the pipe. The people at Duncan Plumbing tore it apart and had it replaced. The second time, they fixed something under the sink so that there would be a water line connecting to the refrigerator. People should use Duncan Plumbing!