Plumbing Foreman Job Description

What Does a Plumbing Foreman Do?

Safe drinking water, working drains and legal installations for tenants, patients, and students rest on the plumbing crew that looks after a building. Plumbing foremen make sure that code is followed and inspections are passed, and that jobs are staffed and finished on time. Some run crews for contractors on new buildings, and others lead the plumbing shop at a university or hospital.

Also known as: Plumbing Supervisor, Plumbing Assistant Supervisor

Plumbing Foreman Duties and Responsibilities

The primary responsibilities of a plumbing foreman include:

• Assign plumbers and apprentices to service calls, remodels and new construction each morning.
• Pull permits and book the plumbing inspector for checks before walls close and at the finish.
• Review drawings for pipe sizing, venting and fixture counts, and flag conflicts with other trades.
• Run the backflow testing program and keep certificates current for every device.
• Order pipe, fittings, fixtures and water heaters, and control stock in the shop and trucks.
• Inspect joints, slopes and supports before cover-up, and correct work that misses code.
• Handle emergency calls for burst pipes, sewer backups and gas leaks, and dispatch the right crew.
• Keep time sheets, job costs and daily reports for each project or work order.
• Train apprentices on code, soldering, PEX and cast iron work, and track their hours.
• Meet building users and contractors to plan water shutdowns with the least disruption.

Required Skills and Qualifications

To succeed as a plumbing foreman, you will need the following skills and qualifications:

• Journeyman or master plumber license, as the state requires
• Deep knowledge of the local plumbing code, such as the IPC or UPC
• Backflow tester certification
• Crew leadership and scheduling
• Reading plumbing plans and isometrics
• Job costing and material control
• Composure during floods and sewer emergencies
• Clear communication with inspectors and building users

Education and Training

To become a plumbing foreman, in most states you will need a journeyman license, and some employers want a master license before you can pull permits. Foremen typically learn the trade through a plumbing apprenticeship after high school, but some start out by working as helpers for a contractor. Leadership usually comes after years on the tools.

Salary and Job Outlook

Employment of first-line supervisors of construction trades and extraction workers, which covers plumbing foremen, is projected to grow about 5 percent from 2025 to 2035, according to BLS. The group should see about 67,000 openings a year, according to the same projections, and many plumbing foremen are promoted from their own crews. Given that most states license plumbers, a journeyman with a clean inspection record stands a good chance when a foreman post opens.

Outlook source: U.S. Bureau of Labor Statistics, Employment Projections, 2025 to 2035, First-line supervisors of construction trades and extraction workers.