To work as a Plumber in Alberta, a person must be a Registered Apprentice or a Certified Journeyman. Plumbers plan, install and service plumbing systems, fixtures, piping equipment and controls. These piping systems may be used to transport water, waste, gases or hot liquids. Plumbers may specialize in the types of work they do, such as installing water conditioners and installing hydronic heating and chilled water systems.