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Asbestos Removal

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Australia used asbestos in housing for longer and more widely than almost anywhere else, so asbestos removal here is ordinary residential work rather than an industrial specialty. Wall and ceiling sheeting, eaves, bathroom linings, roof sheeting, fences, flue pipes, electrical backing boards and the backing under vinyl flooring are all common places to find it in a house built before the 1990s.

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This type of work often has to be done by a licensed or certified trade. Ask to see licences and proof of insurance before work starts.
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What most homeowners get wrong is the deliverable. You are not buying an empty room; you are buying a document that says the room is clean. SafeWork NSW describes what a clearance inspection involves — a visual inspection and, where there is an enclosure, clearance air monitoring — and what the clearance certificate has to state: that the assessor found no visible asbestos residue, and that the airborne asbestos fibre level was below 0.01 asbestos fibres per millilitre.

The certificate also has to come from somebody with no stake in the removal. SafeWork NSW's independence requirement is that the assessor must not be involved in the removal of asbestos for that specific job, or in any business or undertaking involved in that removal. In practice that means two engagements rather than one: the removalist, and separately the person who signs off that the removalist is finished.

Friable and non-friable, and why the distinction runs everything

Australian asbestos law divides the material by how easily it releases fibres, and every other rule follows from that split. Victoria's definitions are typical: a Class B licence covers non-friable asbestos, or asbestos-contaminated dust associated with or derived from the removal of non-friable asbestos, while a Class A licence covers friable asbestos, or asbestos-contaminated dust other than the dust derived from non-friable removal.

Most asbestos in an Australian house is non-friable when it is intact — bonded sheeting that will not crumble under hand pressure and does not shed fibres while it is left alone. Friable material is the smaller and far more dangerous category, and it turns up in old pipe lagging, some textured coatings, loose-fill insulation and, importantly, in any bonded material that has been badly weathered, mechanically damaged or heated.

The consequence is a difference in kind, not degree. Class A work is enclosed, negatively pressurised, air-monitored and supervised throughout; Class B work is controlled but does not carry that apparatus. Getting the classification right at the start is the difference between a correctly scoped job and a variation halfway through.

What a clearance certificate actually certifies

SafeWork NSW sets out the two limbs a clearance inspection has. The first is visual: the assessor looks for residue, and the certificate must state that no visible asbestos residue was found. The second applies where the removal was carried out inside an enclosure, and it is a measurement: clearance air monitoring, with the certificate stating that the airborne asbestos fibre level was below 0.01 asbestos fibres per millilitre.

For Class A work the monitoring is not just at the end. SafeWork NSW requires air monitoring before, during and if necessary after removal work, carried out using the membrane filter method, with results below 0.01 fibres per millilitre before the enclosure is dismantled. That sequence is what makes it possible to say the fibres did not go anywhere, rather than simply that the material left.

Keep the certificate. It is the document a certifier, a purchaser, an insurer or a future contractor will ask for, and it is the only evidence that the area was cleared by somebody qualified to say so rather than by the person who had an interest in finishing.

Who may sign, and why they cannot be the removalist

SafeWork NSW divides the sign-off by class of work. Class A removal work must be assessed by the holder of a licensed asbestos assessor licence. For Class B work, either a licensed asbestos assessor or a competent person may carry out the clearance inspection and issue the certificate.

Independence is the condition attached to both. The assessor or competent person must not be involved in the removal of asbestos for that specific job, and must not be part of any business or undertaking involved in that removal. A removalist who offers to provide the clearance certificate as part of the package is describing something that is not a clearance certificate.

Licensed asbestos assessors in New South Wales also do more than clearances: SafeWork NSW lists taking asbestos samples, developing asbestos registers and producing pre-demolition asbestos surveys among their work. If you need to know what is in a building before you decide anything, that is the person to call first.

Licensing differs across the borders, sometimes sharply

Asbestos is regulated by each state and territory's work health and safety regulator, and although the Class A and Class B structure is broadly shared, what sits around it is not. Victoria, for example, states on its government asbestos site that unlicensed removal of asbestos can be carried out by homeowners, while recommending professionals particularly for large jobs or friable materials. That is a materially different starting position from the one a homeowner in another state will read.

What does not vary is the treatment of friable material. Victoria's licence definitions put friable asbestos squarely in Class A, and WorkSafe Victoria states that a Class B licence holder is not permitted to perform Class A work. No jurisdiction lets an unlicensed person handle friable asbestos.

So the instruction is the same everywhere and the answer is local: find your own state or territory regulator, read what it says about licensed and unlicensed removal at your address, and check the removalist's licence number and the assessor's licence number on that regulator's public register rather than on a quote.

How a licensed removal is run

  • Identification first: sampling and analysis, or an assumption that the material is asbestos, so the class of work is known before anyone quotes.
  • Notification to the state regulator where the work requires it, with the notice period that regulator sets.
  • A written control plan naming the method, the controls, the waste route and the supervisor, which Victoria requires for Class B work and more besides for Class A.
  • Informing nearby occupants, which is a duty on the removalist in Victoria rather than a courtesy.
  • Site setup: signs and barricades, exclusion of everyone not doing the work, and decontamination facilities for the people who are.
  • For Class A work, an enclosure and a supervisor present on site at all times, with air monitoring before, during and where necessary after the removal.
  • Removal using methods that keep the material wet and intact rather than broken, then controlled bagging and disposal at a facility licensed to receive it.
  • Clearance inspection by an independent assessor or competent person, and the clearance certificate before the area is reoccupied.

What the household should and should not do

  • Leave intact, undamaged, painted sheeting alone unless it is in the way of work; management is a legitimate option and disturbance is the risk.
  • Never sand, drill, cut, water-blast, dry-sweep or blow anything you suspect contains asbestos, and never send those tasks to a handyman as a small job.
  • Move out of the affected area entirely while licensed removal is under way, and keep children and pets off the property for the duration.
  • Do not accept a clearance from the removalist's own staff or a related business, because that does not satisfy the independence requirement.
  • Ask where the waste is going and keep the disposal documentation, since a landfill that accepts asbestos is a specific, licensed facility rather than the nearest tip.
  • Have any material that has been weathered, heated or physically damaged assessed rather than assumed non-friable, because damage is what moves material between the classes.

The paperwork to hold afterwards

  • The clearance certificate, stating no visible asbestos residue and, where an enclosure was used, the airborne fibre result.
  • The air monitoring records for Class A work, including the results that allowed the enclosure to be dismantled.
  • The removalist's licence details and the assessor's licence details, as they appeared on the regulator's register at the time.
  • The notification lodged with the regulator, where the work required one.
  • Waste disposal dockets identifying the facility that received the material.
  • An updated record of what asbestos remains in the building, since removing one element rarely removes all of it.

Asbestos Removal: frequently asked questions

What is an asbestos clearance certificate and do I need one?

It is the document that says the area is safe to reoccupy after licensed removal. SafeWork NSW describes the clearance inspection as a visual inspection plus, where there is an enclosure, clearance air monitoring, and says the certificate must state that no visible asbestos residue was found and that the airborne asbestos fibre level was below 0.01 asbestos fibres per millilitre. Keep it: a certifier, a buyer, an insurer or the next contractor will all ask for it.

Can the company that removes the asbestos also certify the job?

No. SafeWork NSW requires the assessor or competent person issuing a clearance to be independent, meaning not involved in the removal of asbestos for that specific job and not part of any business or undertaking involved in that removal. That is why an asbestos job has two invoices rather than one. A removalist offering to include the clearance certificate in their own package is describing something that will not stand up.

What is the difference between a Class A and a Class B asbestos licence?

The material. Victoria's definitions are representative: a Class B licence covers non-friable asbestos and the asbestos-contaminated dust derived from removing it, while a Class A licence covers friable asbestos and other asbestos-contaminated dust. WorkSafe Victoria states that a Class B holder is not permitted to perform Class A work. Class A work comes with the enclosure, the air monitoring and the constant supervision that friable material requires.

Who can take a sample to find out whether it is asbestos?

Not you, ideally. In New South Wales, SafeWork NSW lists taking asbestos samples, developing asbestos registers and producing pre-demolition asbestos surveys among the work a licensed asbestos assessor does. Sampling means disturbing the material, which is the exact activity that releases fibres, so it is worth paying someone who does it under controls. The alternative that costs nothing is to assume the material contains asbestos and treat it accordingly.

Are the rules the same in every state?

No, and the differences are large enough to matter. Asbestos is regulated by each state and territory's work health and safety regulator. Victoria's government asbestos site states that unlicensed removal of asbestos can be carried out by homeowners while recommending professionals, particularly for large jobs or friable materials — a different starting point from what a homeowner elsewhere will read. What is constant is friable asbestos, which is Class A work in every jurisdiction. Check your own regulator before assuming anything.

Should I remove asbestos that is in good condition?

Not necessarily. Intact, undamaged, sealed or painted bonded sheeting that nobody is going to disturb can be managed in place, and removal itself is the activity that generates fibres. The reasons to remove are that it is damaged, that it is weathering, or that work you are doing will disturb it. The reason to reassess is damage of any kind, since weathering, heating or mechanical damage can move material out of the non-friable category and into the one that requires a Class A licence.

Sources

  1. SafeWork NSW: Working as a licensed asbestos assessor
  2. Asbestos Victoria: Licensed asbestos removalists
  3. WorkSafe Victoria: Fire-damaged non-friable asbestos-containing material and licence classes

Written by the LokalMatch editorial team. Last reviewed 22 September 2026. How we write and check our guides

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What affects the cost of asbestos removal

Prices depend on the details of your project. We only publish price ranges when they’re backed by real LokalMatch quote data or reliable sources. Until then, here’s what usually changes the price:

  • Interior or exterior approach
  • Length of foundation wall to excavate or treat
  • Depth, soil conditions and access for equipment
  • Crack repair, underpinning or other structural work
  • Weeping tile, sump pumps and backwater valves
  • Restoring landscaping, driveways or finished basements
  • Testing and safe removal of mould or asbestos, where needed

How to compare asbestos abatement contractors before you hire

  • Choose a contractor who finds the source of the water before recommending a fix, whether that's grading, eavestroughs, cracks or drainage.
  • Ask them to explain the difference between interior and exterior waterproofing for your home, and why they recommend one.
  • For foundation cracks that are wide, growing or uneven, ask whether a structural engineer should assess them first.
  • For mould, asbestos or radon, hire professionals qualified for that specific work, and don't disturb suspect materials yourself.
  • Get a written quote that lists excavation, membranes, weeping tile, sump pumps and restoration of landscaping or finishes.

Questions to ask asbestos abatement contractors before you hire

  • Where do you think the water is coming from, and how did you confirm it?
  • Do you recommend interior or exterior waterproofing for my home, and why?
  • Should a structural engineer look at these cracks or this wall?
  • Does this work need a permit from my municipality?
  • Is your warranty transferable if I sell the house, and what does it cover?
  • How will you restore the landscaping, driveway or basement finishes afterwards?
  • If you find mould or asbestos, how will it be handled and by whom?

When to call a pro for asbestos removal

  • Water on the basement floor or damp walls after rain or snowmelt
  • Foundation cracks that are growing, or walls that bow or lean, which should be assessed by a qualified professional
  • Musty smells or mould that keeps coming back
  • Suspected asbestos in insulation, flooring or pipe wrap: leave it undisturbed and call a qualified abatement professional.

Asbestos removal permits and local rules

Some asbestos removal work needs a permit or has to meet local bylaws. Rules vary by municipality, so ask your pro whether a permit is needed and who will apply for it — and check with your city or town if you’re unsure.

Permits and licensing

Guides about asbestos removal

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