SES technician in a respirator removing black mould-affected plasterboard in an Auckland home

Mould removal and meth decontamination - tested, treated, cleared

Black mould through the ceiling, or a meth reading on a pre-purchase test: SES finds the cause, removes the contamination and gives you clearance results a landlord, buyer or insurer will accept - not a bleach-and-repaint job that comes back in three months.

24/7 emergency line021 639 196

  • Clearance testing included
  • NZS 8510 meth standard
  • Moisture source fixed, not hidden
Mould-affected bathroom ceiling being treated in an Auckland home

Mould removal that deals with the cause

Mould is a moisture problem first. We find the source - leak, condensation, failed waterproofing, ground moisture - then remove affected linings, HEPA-vacuum and treat surfaces, dry the structure and verify with air or surface sampling.

Repairs, ventilation and repainting follow through SES Property Maintenance. Common jobs: rental properties under Healthy Homes standards, post-flood homes, body-corporate apartments, clinical and food-handling spaces.

Meth wipe sample being prepared for laboratory analysis

Meth decontamination to NZS 8510

New Zealand’s standard, NZS 8510:2017, sets 1.5 µg per 100 cm² as the level at which a property should be decontaminated. SES tests (screening and lab-analysed wipe samples), decontaminates - removal of soft furnishings and porous linings where needed, chemical wash of hard surfaces, HVAC cleaning - then re-tests and issues a clearance report.

Used by landlords, property managers, buyers and insurers across the North Island.

How it works

How remediation runs

  1. Step 01

    Assess and test

    Moisture mapping or meth sampling, photos, and a plain-English report on what is affected.

  2. Step 02

    Fixed quote

    Scope, price and what needs to leave the property; insurer copy if you want it.

  3. Step 03

    Contain and remediate

    Negative-pressure containment, removal, cleaning and treatment; asbestos or lead handled by our licensed crew if discovered.

  4. Step 04

    Clear and hand back

    Independent or in-house clearance sampling, clearance report, reinstatement booked.

Technician assessing mould growth before quoting

What mould and meth remediation costs

Localised mould (one room) typically NZD [800-2,500]; whole-house mould after flooding is quoted after assessment.

Meth testing from NZD [xxx]; decontamination of a standard three-bedroom home typically NZD [5,000-15,000] depending on readings and how much material must be removed. Fixed price after assessment.

SES technician in PPE handing over a clearance report

Why landlords, buyers and insurers use SES

Every job ends with sampling and a report - and the fault that caused it is fixed, so it does not come back.

  • Clearance you can rely on - every job ends with sampling and a report, not a promise.
  • Cause fixed - the leak or ventilation fault is identified and repaired, so the mould does not return.
  • Licensed for what is behind the wall - pre-2000 linings often contain asbestos; our Class A & B crew handles it on the same visit.

Mould and meth services in Auckland, Whangarei, Hamilton, Hawke’s Bay and Wellington

Crews based in Auckland with regular mould and meth work in Whangarei and Northland, Hamilton and the Waikato, Hawke’s Bay and Wellington.

Mould and meth FAQs

Straight answers to the questions procurement teams, facilities managers and property owners ask us most. If yours is not here, call the office or send us the scope and a division lead will answer it directly.

  • Can’t I just clean mould with bleach?

    Surface mould on tiles, yes. Mould in plasterboard, timber or carpet has roots in the material and a moisture source behind it; bleach removes the stain, not the problem.

  • Is black mould dangerous?

    Any extensive mould can affect breathing, allergies and asthma, and the Healthy Homes standards require rentals to be free of it. Treat significant growth as a health issue, not a cosmetic one.

  • What meth reading needs decontamination?

    Above 1.5 µg/100 cm² under NZS 8510:2017. Lower readings usually need a clean and re-test only. We explain your results before quoting.

  • Will my insurance cover meth or mould?

    Meth contamination is often covered as a sudden event; mould depends on the cause (a burst pipe usually yes, long-term neglect usually no). We provide the report either way.

  • How long does it take?

    Mould: one to three days on site plus drying time. Meth: two to five days for a standard home, then clearance sampling with lab results in two to three working days.

Send photos or your test results - fixed quote within 24 hours

The address, a few photos or the lab report, and a technician will price the job and tell you what has to leave the property.

Get in touch

Tell us about your project

Get in touch to discuss the site, the scope and the timeframe. We’ll provide practical advice, quick answers, and a delivery-focused approach within one business day.