How to Tell if Something Is Asbestos

Start with the age of your home

This is the single most useful clue. Asbestos was used in over 3,000 building products in Australia, and it wasn’t fully banned until 31 December 2003. As a practical rule:

• Built before 1990: assume asbestos may be present until a test says otherwise. It was standard through the post-war decades to the late 1980s.
• Built or renovated before 2004: asbestos is still possible — it was phased out gradually, not banned overnight.
• Built after 2003: generally asbestos-free, though always confirm if something looks suspect.

Victoria’s own guidance is blunt about it: if the suspect material was installed before 1990, the safest position is to assume it contains asbestos. Age doesn’t confirm it — but it tells you whether to take the possibility seriously.

Where asbestos is commonly found in the home

Asbestos turns up in specific, predictable places in older Australian homes. If your home is pre-1990 and you’re looking at a material in one of these spots, treat it as suspect:

Outside the house

• Fences — hard cement panels and corrugated “Super Six” sheeting
• Roofs — corrugated cement roofing, and decramastic (pressed metal) shingles
• External walls — flat fibro cladding and sheeting
• Eaves and soffits — flat cement sheet under the roofline
• Sheds and garages — often whole structures of cement sheet

Inside the house

• Bathrooms, laundries and kitchens — wall sheeting behind tiles (including patterned Tilux board), splashbacks
• Ceilings — flat fibro sheets, and textured “popcorn” finishes
• Floors — vinyl tiles, linoleum, and even the black adhesive used to stick them down
• Electrical — switchboards and old meter boards

Wet areas are a particular hotspot, because asbestos cement was valued for resisting fire and moisture — exactly what a bathroom needs.

Visual clues — and why they’re only clues

Certain features raise the odds a material contains asbestos. None of them confirm it, but together they tell you it’s worth testing:

• Cement-based and rigid — flat or corrugated sheets that feel hard and brittle rather than flexible
• Dimpled or pockmarked surface on one side of cement sheeting is a classic sign
• Grey or off-white colour, though paint can change this completely
• Fibrous, flaky or powdery texture, especially where an edge is broken or worn
• Fine fibres protruding from a degrading surface, or fluffy white dust nearby
• Age and wear — brittle, cracked, weathered material in a pre-1990 home

Here’s the catch, and every authority stresses it: asbestos cement looks almost identical to modern non-asbestos fibre cement. Paint, dirt, weathering and repairs all change how it appears. Super Six asbestos fencing looks like post-1985 HardiFence. Tilux looks like any decorative panel. You genuinely cannot tell the dangerous from the safe by eye — and if the material has degraded, whether it’s friable or non-friable may have changed too.

 

What doesn’t work — common asbestos myths

You can’t smell it

Asbestos has no smell and no taste. The idea that it gives off a distinctive odour is a myth. Any smell from an old material comes from the soil, glue, dust or mould around it — not the asbestos. And trying to sniff a material to check only disturbs dust and increases your exposure. Don’t.

You can’t confirm it by breaking it

Some guides suggest snapping a sample to check the texture. Do not do this. Breaking a suspect material is exactly what releases fibres into the air. If you need to know the texture of an edge, look — don’t break it.

A warning label isn’t the test

Some asbestos products carry a warning label. Most don’t. No label absolutely does not mean no asbestos — the vast majority of asbestos in homes was never labelled at all.

The only way to know for certain

Every Australian health and safety authority says the same thing: the only reliable way to confirm asbestos is a laboratory test. A small sample is taken and analysed by a NATA-accredited laboratory (the National Association of Testing Authorities), with the result issued on a Certificate of Analysis. You don’t take the sample yourself — sampling disturbs the material, and doing it without proper procedure releases the exact fibres you’re trying to avoid. A licensed asbestos assessor or removalist takes the sample safely and arranges the lab analysis. Testing is inexpensive — usually $80 to $150 a sample — and it’s the cheapest step in the whole process compared to the cost of disturbing asbestos unknowingly. See our asbestos testing page for how it works.

What to do if you think you’ve found asbestos

If a material in an older home looks suspect, the safe sequence is simple:

• Don’t disturb it. Don’t cut, drill, sand, break or sweep it. Intact, undisturbed asbestos is generally low-risk — it’s disturbance that releases fibres.
• Don’t start the renovation yet. If your plan involves that material, pause until you know what it is. This is where most accidental exposure happens.
• Get it tested. A NATA-accredited test confirms it either way, so you’re deciding on facts, not a guess.
• If it’s confirmed and needs removing, use a licensed removalist for anything over the 10m² DIY limit — which is most real jobs.

The whole point is to turn an assumption into a fact before anyone picks up a tool. For a pre-1990 home, “assume it’s asbestos until tested” isn’t paranoia — it’s the position every Australian regulator takes.

Not sure what you’re looking at?

If you’ve found a suspect material in an older Dandenong home and you want certainty before you renovate, buy or start work — don’t guess and don’t disturb it. We arrange NATA-accredited testing and licensed removal across Dandenong and the south-east. Send us a photo to start.