Plumbers perform some or all of the following duties:

• Read blueprints, drawings, and specifications to determine the layout of water supply, waste, and venting systems
• Install, repair, and maintain domestic, commercial, and industrial plumbing fixtures and systems
• Cut, thread, and bend pipe using hand and power tools
• Join pipes using couplings, clamps, screws, bolts, cement, soldering, and brazing equipment
• Test pipes and plumbing systems for leaks using air and water pressure gauges
• Ensure plumbing installations comply with the National Plumbing Code and safety standards
• Install and maintain high-efficiency water heaters and water-treatment systems
• Work with modern plumbing technologies such as greywater recycling systems, hydronic radiant heating, and smart leak-detection devices

These are the typical employment requirements and benefits associated with this occupation in Canada:

• Completion of secondary school is usually required
• Completion of a four- to five-year apprenticeship program is usually required to be eligible for trade certification
• Trade certification is compulsory in Nova Scotia, Prince Edward Island, New Brunswick, Quebec, Ontario, Saskatchewan, and Alberta
• Trade certification is available but voluntary in other provinces and territories
• Red Seal endorsement is highly recommended for interprovincial mobility and higher earning potential
• Strong knowledge of plumbing systems, installation methods, and code compliance is essential
• Experience with green plumbing technologies and high-efficiency mechanical systems is an asset