Plumbing Inspector

A plumbing inspector examines plumbing installations, water and drainage systems in buildings across residential, commercial, and industrial sites to verify compliance with the National Construction Code, AS/NZS plumbing standards, and state or territory building regulations. They assess work completed by licensed plumbers, issue inspection reports, and either approve systems for use or direct remedial work before sign-off.

Inspect underground and above-ground water supply pipework, drainage systems, and hot water services against AS/NZS 3500 standards and local code requirements. Test water pressure, flow rates, and backflow prevention devices using pressure gauges and flow meters to ensure safety and compliance. Examine trap seals, ventilation stacks, and grease arrestor installations on drainage systems to prevent siphonage and sewer gas entry. Verify correct installation of backflow prevention devices and cross-connection controls in accordance with AS/NZS 3500 and state or territory plumbing regulations. Inspect gas water heating systems, booster heaters, and associated fittings for correct installation and safety certification. Review plumbing plans and specifications against the National Construction Code and issue approval or rejection notices. Conduct final inspections of completed plumbing work before buildings receive occupancy permits or after renovation projects. Document inspection findings, take photographs, and prepare detailed inspection reports detailing defects and remedial actions required.

The standard entry pathway requires a diploma, advanced diploma or associate degree (ABS skill level 2). Specific qualification requirements vary by employer and state. Some employers may accept equivalent experience. Check yourcareer.gov.au for available courses and dewr.gov.au/skills-reform/free-tafe for subsidised training options.

You'll need to learn dense technical standards (AS/NZS 3500, National Construction Code) that change regularly, and most councils won't hire you without plumbing trade experience or a relevant qualification first. The work is repetitive inspection of similar systems, and you're often the bearer of bad news telling tradies their work doesn't meet code, which creates tension on job sites.

Local councils employ most plumbing inspectors, so jobs concentrate in major metros where building activity is highest. Regional areas have fewer positions but less competition. Most work is based from council offices with site visits, though some private certification bodies in metros now hire inspectors as building activity increases.

Published for ANZSCO unit group 3121, the wider group this job sits in, not for this job on its own.

This is the median for full-time employees who are not managers and are paid at the adult rate, before tax and salary sacrifice. It is a guide to what the work pays, not a wage rate.

Source: ABS Survey of Employee Earnings and Hours, May 2025, customised report.

• Adjust weight of cargo to capacity of freight transport vehiclescore
• Attention to Detailcore
• Incident Reportingcore
• Policy and Procedure Adherencecore
• Policy Interpretationcore
• Problem Solvingcore
• Quality Assurance and Checkingcore
• Record Managementcore
• Regulatory and Legislative Awarenesscore
• Report Writingcore
• Risk Identificationcore
• Stakeholder Communicationcore
• Time Management and Prioritisationcore
• Verbal Communicationcore
• Verification and Authenticationcore
• Written Communicationcore
• Check payrolls
• Complaint Handling
• Continuous Learning and Upskilling
• Electronic Document Management
• Microsoft Office Suite Proficiency
• Negotiation
• Process Documentation
• Research and Analysis
• Workload Self-Management

• ABS OSCA 2024, occupation definition and task statements
• ABS Survey of Employee Earnings and Hours, May 2025, customised report.
• ABS, 2021 Census of Population and Housing based on usual place of residence (Custom Report). OSCA Experimental Estimates.

Role data is drawn from official Australian Government sources, and each figure names where it comes from. Where a role is not in the ABS classification, the page shows no government figures for it. Data may not reflect every local variation.

Where our numbers come from.

Last updated: 30 October 2026