Guide

Asbestos before renovating a New Zealand home

If you hire a builder to refurbish a home built before 1 January 2000, that builder must identify the asbestos likely to be disturbed and, so far as is reasonably practicable, have it removed before the work starts (regs 22 and 26). Test first, remove second, clear third, renovate fourth.

Published 15 September 2026 · Updated 15 September 2026 · Written and checked by the team at NZ Asbestos Removal

The short version

A PCBU refurbishing or demolishing a home must identify the asbestos likely to be disturbed and, so far as reasonably practicable, remove it first (regs 22, 26).
Before a workplace structure is demolished or refurbished, a competent person must determine whether asbestos is present (reg 20).
Licensed removal cannot start until at least 5 days after WorkSafe is notified (reg 34). Build that into the programme.
The area cannot be reoccupied until a clearance certificate is issued (reg 42), so the trades cannot start early.
Sequence: test, quote, notify, remove, clear, renovate.

Whose duty it is

If you are paying a builder, the builder is a PCBU and carries the duty. Before a workplace structure is demolished or refurbished, a competent person must determine whether asbestos is present (reg 20). For a home, a PCBU refurbishing or demolishing it must identify the asbestos likely to be disturbed and, so far as is reasonably practicable, have it removed before the work starts (regs 22 and 26).

In practice that means the conversation happens before the quote is signed, not when a sheet cracks on day three. A builder who says "we'll deal with it if we find it" is describing a programme delay and a cost you have not budgeted for.

The order to do things in

Test or survey. One material you are about to disturb: a $249 test. A whole building, or a scope that is still moving: a refurbishment survey, which is intrusive and is designed for exactly this moment.
Get a removal quote. If it is positive, the class decides who may do the work. Ask for a fixed quote naming the licensed remover.
WorkSafe is notified. The licensed remover notifies WorkSafe in writing at least 5 days before starting (reg 34).
Removal. The licensed remover does the work under a removal control plan.
Clearance. An independent person inspects and issues a clearance certificate (regs 41–42).
Renovation starts. Not before the certificate.

What it does to your timeline

Two hard stops sit in that list. The five-day notice (reg 34) is a statutory minimum, not a scheduling preference: licensed removal cannot begin earlier. And the area cannot be reoccupied until the clearance certificate is issued (reg 42), which means your other trades cannot slip in behind the removalists.

Add the lab turnaround on the test itself and the remover's own lead time, and a positive result typically moves a renovation start by a couple of weeks rather than a couple of days. Testing early is the cheapest way to protect the programme.

What it does to your budget

The only published New Zealand figures we could source come from CheckMyBuilder (updated June 2026): a typical asbestos removal job around $7,000, a range of roughly $1,000 to $40,000 and up, and $30–150 per m². The asbestos removal cost page sets those out with the licence class attached, and explains why you cannot get a fixed price before the material is tested.

We do not publish per-material prices — roof versus ceiling versus cladding per m² — because we could not source them from a New Zealand provider. Anyone quoting you those numbers should say where they came from.

Before you sign the building contract

Ask how the builder will meet regs 20, 22 and 26 on your job, and who is doing the identifying.
Ask what happens to the programme and the price if asbestos is found. Get it in writing.
Get the test done yourself if the builder is vague. A $249 test buys a firm answer before you commit.
Keep the laboratory report and the clearance certificate with the property file.

We are not a licence holder. NZ Asbestos Removal is not a WorkSafe asbestos licence holder. Removal we arrange is carried out by licensed partners named, with their licence class and number, on each quote.

How we make money, and why the clearance is independent

Sources

Every rule and price on this page was checked against its source on 15 September 2026.

Questions people ask

Does my builder have to check for asbestos before renovating?

If the home was built before 1 January 2000 and your builder is refurbishing or demolishing part of it, yes: as a PCBU they must identify the asbestos likely to be disturbed and, so far as reasonably practicable, have it removed first (regs 22 and 26). Before demolition or refurbishment of a workplace structure, a competent person must determine whether asbestos is present (reg 20).

How long does asbestos removal delay a renovation?

At minimum, the 5 days' written notice a licensed remover must give WorkSafe before starting (reg 34), plus the removal itself and the clearance inspection — the area cannot be reoccupied until a clearance certificate is issued (reg 42). Add lab turnaround on the test beforehand.

Do I need a survey or just a test?

A test answers one material. A refurbishment or demolition survey is intrusive and covers the parts of a building your work will affect — the right tool when the scope is broad or still moving.

Can I renovate around asbestos and leave it in place?

Sometimes, if the material is non-friable, in good condition and genuinely will not be disturbed. If your work touches it, reg 26 points at removing it first. The surveyor's report and the remover's assessment are what settle it.

Who pays for the asbestos removal, me or the builder?

That is between you and your builder and depends on the contract you signed. It is the reason to settle the question before the contract is signed rather than mid-job.

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