Interior Mould

Professional Mould and Moisture Testing, Nationwide

Talk to Property Risk NZ for the latest in condensation detection technology, surface and air mould spore sampling, and experienced reporting and recommendations.

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Mould Assessment Specialists

Mould in homes and buildings

Mould is a fungus usually found in damp, dark or steamy areas, recently flooded areas or in places with poor ventilation. It reproduces by making spores, which migrate through buildings and start to grow in damp or musty areas.

Mould and Health

Mould toxicity largely depends on the type of mould present and how much of it is around. Exposure to large numbers of ‘black mould’ spores, while not particularly dangerous per se, can increase the risk of an allergic reaction leading to breathing issues, eye, nose and throat irritation, wheezing, and skin rashes.

Repeated exposure to large amounts of mould can increase a person’s sensitivity, leading to a worsening of symptoms over time. While mould itself is not toxic, any mycotoxins it creates are. Stachbotrys chartarum, one of the black moulds, can cause fever, shortness of breath and nausea if exposed for longer periods of time.

According to the World Health Organisation, a considerable portion of the world’s 300 million cases of childhood asthma is attributable to exposure to indoor dampness and mould.

Condensation and Mould

Sometimes there is no water leak where mould is growing. Often mould will grow along external walls or in patterns on the ceiling where temperature differences occur on the surface. This is because elevated humidity levels will condense on different thermal areas of a room. This is especially true in bathrooms, kitchens and shower areas with poor ventilation.

Mould Testing

Property Risk NZ uses the latest innovative tools to find the source of mould. With our thermal imaging cameras, we can see areas of wall that have higher-than-usual moisture levels without any destruction to the property. This method of identifying areas of concern saves us time and saves you money. Moisture probes are the next step, allowing us to reliably quantify damp areas before we do more invasive testing.

We can take spore samples using tape lifts and have them analysed by a lab to identify the more dangerous moulds. Our high-speed air monitors allow us to run air spore tests in under 10mins. All our clients receive an accurate, in-depth report and recommendations for remediation.

  • Mould detection and species identification
  • Thermal imaging, moisture probes
  • Surface and air sampling
  • Reports and recommendations
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Tim Wheeler


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Frequently Asked Questions

We take our commitment to health and safety seriously. Our current professional memberships include the following:

Property Risk Sitewise Totika S365 NzismNzdaa

NZ Government Tenancy Services says the issue of dampness and mould is a combined effort between tenants and landlords:

“Rental homes need to be free from mould and dampness before being rented out. During a tenancy, tenants need to keep the house well-aired and remove any mould straight away.”

Landlords in particular should regularly check for interior moisture and mould before they balloon into much more serious issues. A small leak, ignored, can lead to expensive structural repairs years before they should be necessary.

No, we’re consultants only. We advocate for you as our client. To avoid a ‘conflict of interest’ we make sure we have nothing to gain by finding mould in your building. Being in the industry, however, we can source a range of competitive quotes from trustworthy contractors for any work that needs doing. We don’t receive ‘kickbacks’ for referrals or similar.

Property Risk NZ services the whole of New Zealand. We have offices in Auckland and Tauranga, but we have clients all across the country.

We can certainly take care of the whole process for you. We do everything from recommending clean up procedures, procuring contractors, overseeing works and writing up clearance documentation afterwards.

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Client Testimonials

Hear first-hand from our recent clients and read their experiences and feedback below.

Roy Lehndorf

General Manager

A&J demolition have a trusted relationship with the team at property risk, we appreciate their professionalism and open communication, adaptably and forward thinking, Its always a pleasure working with property risk and we are happy to recommend them to clients looking for help and solutions to property issues.

Grant Metson

General Manager

Property Risk NZ are great to work with; their communication is always swift and accurate. They understand our needs and provide the assessments that we require when we need them; and their focus on customer service cannot be faulted.

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Property Risk NZ provides non-intrusive Asbestos Management Surveys, as well as comprehensive Demolition and Refurbishment Asbestos Surveys. 

Property Risk Assessment

Our audit of your health and safety measure and compliance documentation can be tailored to suit your needs.

Slip Testing

Specialist equipment allows us to quantify and deliver recommendations on your building’s pedestrian access routes.

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