
Toxic Mould Testing Services NZ
Mould growth in buildings can affect indoor air quality, occupant health, and building integrity. Drug Screening provides professional toxic mould testing and assessment services across Christchurch and the wider Canterbury region to help identify potential mould issues and support informed decisions.
When Toxic Mould Testing May Be Required
Testing helps confirm whether mould is present and supports appropriate next steps.
- There is visible mould growth
- Occupants are experiencing unexplained respiratory or health symptoms
- There has been water damage, flooding, or persistent moisture
- A property has poor ventilation or a musty odour
- Pre-purchase or tenancy concerns exist

Our Toxic Mould Testing Approach
Our mould testing services are conducted using recognised industry sampling techniques. We do not provide remediation services, allowing us to remain independent and unbiased.
Surface sampling of visible mould growth
Air sampling to assess airborne spores
Laboratory identification of mould types (if required)
Written reports outlining findings and limitations

Not sure if testing is required?
We're happy to talk you through it.
What Our Reports Provide
Our reports are factual, balanced, and designed to be easily understood.
- Identification of mould presence
- Type(s) of mould detected
- Laboratory results and observations (if required)
- Clear explanation of findings
- Guidance on whether further assessment or remediation may be required

Important Information
Mould testing is used to identify and assess, not to diagnose health conditions. Results should be considered alongside building condition, moisture sources, and professional advice.
We focus on providing evidence-based information, without unnecessary alarm or overstatement.
“We focus on providing clear, factual information to help you make informed decisions about your property.”
Get in TouchMould Testing — Frequently Asked Questions
Common questions about mould testing in Christchurch and Canterbury
How do I know if my property has a mould problem?
Signs include visible mould growth on walls, ceilings, or in wet areas, a persistent musty smell, occupants experiencing unexplained respiratory symptoms, or a history of water damage, flooding, or condensation issues. Testing can confirm the presence of mould and identify the types involved.
Is mould testing necessary if I can already see mould?
Visible mould can be tested to identify the type present, assess the extent, and provide a documented baseline. Testing is particularly useful before purchasing a property, when making an insurance claim, during a tenancy dispute, or when you want an independent professional report.
What types of mould are dangerous?
Many mould types can affect indoor air quality and health, but some — such as Stachybotrys (often called 'black mould') — are associated with more serious health effects. Laboratory analysis can identify which species are present so appropriate action can be taken.
How much does mould testing cost in Christchurch?
Costs vary depending on the size of the area being assessed and the number of samples required. Contact Drug Screening Canterbury to discuss your situation and receive a tailored quote.
Does Drug Screening Canterbury carry out mould remediation?
No — we provide independent testing and assessment only. We do not perform mould remediation. This means our results are completely unbiased and we have no commercial interest in finding a particular outcome.
Not sure if testing is right for your situation? Contact us — we're happy to talk it through.