What Does a Demolition Worker Do? Strip-Out, Dismantling and the Certificate III in Demolition

More than knocking things down

The national description of CPC30426 describes specialist demolition workers who dismantle and demolish public, residential, commercial and industrial structures of all types, and process the resulting materials for salvage, recycling and waste disposal. Much of the job is careful strip-out: removing fixtures, linings and services before the structure itself is touched.

Sorting materials matters. Separating timber, metal, concrete and other waste streams supports recycling and keeps disposal costs and environmental impact down.

Following the plan

Workers carry out the sequence set by the demolition plan and the supervisor. That includes keeping to the agreed order, not removing structural members early, and reporting anything that doesn't match what was expected, such as cracking, movement or materials that weren't identified in the survey.

Hazards on a demolition job

The main risks include unplanned collapse, falling objects, falls from height, mobile plant, sharp and heavy materials, noise, dust and hazardous materials. Asbestos, lead paint and silica dust need particular care: suspected materials are left alone and reported, and only appropriately licensed people remove asbestos where a licence is required.

Exclusion zones, dust suppression and isolation of services are everyday controls, with personal protective equipment as a last line of defence rather than the main control. Workers should never assume a service is disconnected without confirmation.

Where the qualification fits

OnShift describes its Certificate III in Demolition course as an experienced-worker pathway for people with years on site who lack the formal qualification. An adviser checks suitability, and assessment draws on evidence of work you have performed. A qualified assessor decides competency.

Licensing and regulatory requirements for demolition work differ between states and territories, so a qualification on its own may not authorise particular work. If you are new to demolition, our NSW demolition worker training is a shorter starting point.