Apprentice Plumber Responsibilities. Locate and identify the source of leaks. Work with the plumber to assess clients’ plumbing problems and repair them. Cut and install new pipes. Repair old pipes. Help with the preparation of estimates for clients. Respond to clients’ questions and answer them to the best of your abilities. Follow the plumber’s instructions while on the job and perform the tasks that they assign. Use a variety of tools to compl...
