Water line replacement and sewer line replacement are big jobs. You need a plumbing company with the experience and know-how to get the job done safely, quickly and at a competitive price. If you suspect you are having a sewer backup or water back up give the expert plumbers of Coldwright Plumbing & Heating a call. When you call for sewer line replacement or water line replacement you will be greeted by one of our friendly plumbers and they will get to your location in Harford County or Baltimore County right away. Don’t let your sewer or water line stay backed up.