Lagger

A lagger applies insulating materials to pipes, vessels, and plant equipment in industrial, construction, and maintenance settings to minimise heat loss, prevent condensation, or provide acoustic or fire protection. Working from plans and specifications, laggers measure, cut, fit, and secure lagging materials such as foam, fibreglass, mineral wool, or pre-formed pipe sections, often working at heights or in confined spaces.

Measure and mark pipe and equipment dimensions using tape measures, callipers, and marking tools to determine lagging material requirements. Cut lagging materials including foam, fibreglass, mineral wool, and pre-formed sections using hand saws, utility knives, and shears to fit pipe diameters and surface contours. Apply adhesives, bitumen, or mastic to surfaces and lagging materials using brushes, trowels, and spray equipment to secure insulation in place. Fit and wrap lagging around pipes, vessels, and ductwork, ensuring complete coverage and tight sealing of joints to minimise thermal bridging and air gaps. Secure lagging using wire, cable ties, bands, or mechanical fasteners to prevent slippage or movement during operation or temperature cycling. Install protective outer coverings such as aluminium sheet, canvas, or plastic cladding over lagging to shield from damage, weathering, or mechanical wear. Apply sealants and tapes to joints and seams between lagging sections to prevent moisture ingress and maintain insulation integrity. Work at heights using scaffolding, ladders, or elevated work platforms while maintaining balance and observing fall prevention protocols.

The standard entry pathway requires a Certificate I or compulsory secondary education (ABS skill level 5). 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.

The work is physically demanding and repetitive, with a real risk of RSI from cutting, wrapping, and securing materials all day. You'll spend a lot of time in awkward positions at height or in tight spaces, and the job doesn't lead to higher-paid supervisor roles easily. Pay growth is limited compared to other trades.

Some work exists in major construction projects, but most is maintenance-focused in established industrial areas. Remote work isn't an option for this hands-on role.

• Adaptability and Flexibilitycore
• Attention to Detailcore
• Incident Reportingcore
• Policy and Procedure Adherencecore
• Problem Solvingcore
• Quality Assurance and Checkingcore
• Regulatory and Legislative Awarenesscore
• Risk Identificationcore
• Team Collaborationcore
• Time Management and Prioritisationcore
• Verbal Communicationcore
• Workload Self-Managementcore
• Active Listening
• Advise on construction materials
• Basic Arithmetic and Numerical Accuracy
• Calculate needs for construction supplies
• Continuous Learning and Upskilling
• Inventory Tracking
• Process Improvement Identification
• Supplier Communication

• ABS OSCA 2024, occupation definition and task statements
• 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