Cutting, grinding, drilling or demolishing materials like tiles, concrete, bricks and mortar releases respirable crystalline silica, an extremely fine dust that, breathed in over time, can cause silicosis, lung cancer and other serious illness. For Gold Coast and Brisbane homeowners planning a renovation, the dusty demolition stage is the highest-risk part of the job, and the part most worth handing to a crew that controls it properly.
This guide explains what silica dust is, where it hides in a typical Queensland home, why the rules around it changed in 2024, and what you should do before your renovation starts.
What is silica dust?
Crystalline silica is a natural mineral found in many common building materials. On its own, sitting in a solid benchtop or a tiled floor, it is harmless. The danger appears when those materials are cut, ground, sanded or smashed, throwing up a cloud of microscopic dust particles. The finest of these, respirable crystalline silica, are small enough to travel deep into the lungs, where the body cannot clear them.
You cannot see the most dangerous particles, and you will not always smell or taste them. A renovation site can look "mostly clear" while the air is still carrying a hazardous load.
Where silica hides in a typical home
More of your house contains silica than most people expect. During a strip-out or demolition, silica dust commonly comes from:
- Floor and wall tiles, and the sand-and-cement bed they are laid on
- Concrete slabs, footings and besser block
- Bricks, mortar and render
- Natural and engineered stone benchtops
- Fibre-cement sheeting (common in older bathrooms, eaves and walls)
- Tile adhesive, grout and screed
This is why tile removal, concrete grinding and bathroom demolition are the dustiest jobs in any renovation: they disturb exactly the materials that contain the most silica.
Why the rules changed in 2024
Australia tightened its approach to silica significantly in 2024. From 1 July 2024, Australia became the first country in the world to ban the manufacture, supply, processing and installation of engineered stone benchtops, panels and slabs, in response to the silicosis epidemic among stonemasons. Then from 1 September 2024, stronger nationwide rules took effect for all crystalline silica work, not just engineered stone, introducing the category of "high-risk crystalline silica work" and requiring proper risk control.
For tradespeople, dust control is now a legal obligation, not an optional extra. For homeowners, it is a useful signal: any contractor still creating clouds of dry dust with an angle grinder is working to a standard the industry has moved on from.
The risk during a home renovation
As a homeowner you are not a "worker" on your own site, but a renovation still exposes you, your family and your neighbours, especially if the home is occupied during the work, or if you are tempted to do the demolition yourself.
Silica-related disease is cumulative and irreversible. Silicosis scars the lungs permanently and has no cure. The risk is highest for people doing this work repeatedly without protection, but a single badly managed demolition that fills a house with dust is not something any family should breathe, and that dust settles into carpets, wall cavities and air-conditioning for weeks afterward.
This is the core reason DIY demolition is a false economy: the saving is small, and the dust exposure, and the clean-up, are very real.
How a professional crew controls silica dust
A properly equipped strip-out crew treats dust as the main hazard of the job and plans around it. The controls that matter:
- Water suppression — wetting materials as they are cut stops dust becoming airborne in the first place.
- On-tool extraction with H-class HEPA vacuums — capturing dust at the source, as it is generated.
- Sealing and containment — plastic barriers and taped-off zones stop dust migrating into the rest of the home.
- Respiratory protection (P2 masks) for everyone on site.
- Proper clean-up — HEPA vacuuming, never dry sweeping, which just re-suspends the dust.
At Strip It Out we run low-dust tile removal, dust-controlled concrete grinding and HEPA-extracted bathroom demolition as standard, because keeping silica out of the air is the difference between a renovation you can live next to and one you cannot.
What homeowners should do before a renovation starts
A short checklist before the demolition stage begins:
- Ask your contractor how they control dust. "Water and HEPA extraction" is the answer you want; vague answers are a red flag.
- Do not do the tile or concrete demolition yourself. It is the single dustiest task and the one most worth paying a professional for.
- Vacate the work zone. Keep family, especially children and anyone with a respiratory condition, out of the area while demolition is underway.
- Seal off the rest of the house. A good crew does this as standard; confirm it is part of the plan.
- Expect a proper clean-up, with HEPA vacuuming rather than dry sweeping.
- Give neighbours a heads-up if you share walls or live in a unit or townhouse.
The bottom line
Silica dust is the most serious hazard in a home renovation, and it comes from the most ordinary materials: tiles, concrete and brick. The 2024 law changes made dust control a baseline expectation, not a premium. When you hire for a strip-out or demolition on the Gold Coast or Brisbane, choosing a crew that genuinely controls silica dust protects your family's health, your home, and everyone working on it.
Planning a renovation? Contact Strip It Out for a free, fixed-scope quote on low-dust strip-out and demolition.