Plumbers serve the sewer and plumbing system. They are related to each other. In fact, today one system is not used without the other. When replacing sewer pipes and water mains, a leakage can occur, in this case it is impossible to do without the help of plumber. The specialist will help to establish or restore the work of the sink, toilet, kitchen sink, bath, faucet or dishwasher. Water is also used in the hot water system and heating system. Therefore, in case of their breakdown, you will have to contact a plumber.