Plumbers help maintain, install, and repair water and sewerage services. Common plumbing tasks include unclogging toilets and drains, repairing leaks, connecting fixtures to a water supply, and fixing piping and hot water systems.
Master plumbers or licensed plumbers are qualified plumbers who have undertaken additional study and exams to become licensed. Only licensed plumbers can issue compliance certificates, work unsupervised, and provide the full range of plumbing services.