Do I Need a SWMS?
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You need a SWMS if your work includes any of the 18 categories of high risk construction work in the WHS Regulations, regardless of business size: sole traders and one-person subbies carry the same duty as companies, because the duty sits with the PCBU carrying out the work. The most common triggers for trades are a risk of falling more than 2 metres, work on or near energised electrical services, trenches deeper than 1.5 metres, work near powered mobile plant, and work likely to disturb asbestos.
Quick self-check for common trades
- ✓ Electrician: near energised installations or services, roof cavities with fall risk, EWP work: SWMS required
- ✓ Roofer or solar installer: any roof work above 2 metres: SWMS required
- ✓ Plumber or excavator operator: trench 1.5 metres or deeper, work near underground services with mobile plant: SWMS required
- ✓ Carpenter: frame or roof work above 2 metres, structural alterations needing temporary support: SWMS required
- ✓ Demolition: load-bearing demolition or likely asbestos disturbance: SWMS required
- ✓ Painter or tiler working entirely below 2 metres with no other HRCW category: SWMS not legally required, though builders often ask anyway
Sole traders and residential jobs
The SWMS duty applies to construction work, not to the type of client. A sole trader reroofing a house is doing high risk construction work (fall risk above 2 metres) and needs a SWMS, even with no builder on site to ask for it. On owner-builder and small residential jobs the person most likely to ask is the WHS inspector who visits after a complaint or incident.
When the builder asks even though the law does not
Principal contractors commonly require a SWMS for every trade on site as a blanket site rule, including work below the legal threshold. Contractually they can, and arguing the point costs more than the document. If the builder asks, the practical answer is to provide one.
Common questions
▸Do sole traders need a SWMS?
Yes, if the work is high risk construction work. The duty applies to the PCBU carrying out the work, and a sole trader is a PCBU.
▸Do I need a new SWMS for every job?
You need a SWMS that is site-specific to each job. You can start from your previous document, but it must be reviewed and amended for the new site, and the review should be evident (new site details, new date, new sign-offs).
▸Who signs the SWMS?
The person who prepared or approved it for the PCBU, and the workers carrying out the work, who must be consulted and acknowledge the SWMS before starting. Most builders also sight or countersign it.
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Start the questionnaireMore on swms basics
What Is a SWMS?SWMS vs JSA: What Is the Difference?High Risk Construction Work: The 18 CategoriesSWMS Requirements Under the WHS RegulationsDoes my job need a SWMS? (checker)Free SWMS template (PDF + Word)
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