Dmc plumbing & heating today and let’s get started on your project! If you think you have a blocked sewer, please contact us so we can find out whether it is a public or private sewer. Bob the plumber charges by the job, not the hour, which saves you money know the price before we do the work! Request residential and commercial property searches or order detailed mains and sewer maps. Is your old boiler on the blink, and you have no hot water ? Boiler & central heating.