Mould Remediation

Contractors in the Disaster Recovery Australia network hold current IICRC certification in mould remediation. Certification confirms that a contractor has been independently assessed on the knowledge required to safely and effectively remediate mould-affected properties.

Mould remediation is not the same as surface cleaning. A certified contractor follows a structured process that addresses contamination at the source — including concealed mould in wall cavities and subfloors that is not visible from a surface inspection.

A certified mould remediation contractor follows this sequence:

• Assessment — inspecting the full extent of mould growth, locating the underlying moisture source, and determining whether air or surface sampling is warranted
• Containment — establishing physical barriers to prevent mould spores spreading to unaffected areas during remediation
• Remediation — removing materials that cannot be cleaned, treating salvageable surfaces, and managing air quality throughout
• Moisture source resolution — confirming the underlying moisture problem is fixed so mould does not return
• Clearance testing — post-remediation testing confirming mould levels are within acceptable limits before containment is removed

In warm, humid Australian conditions, mould can become established within 24 to 72 hours of water exposure. Properties affected by cyclone inundation, flash flooding, or storm surge that were not dried promptly frequently develop mould in wall cavities, under flooring, and in ceiling voids before it appears on surfaces. A certified contractor conducts invasive assessment where needed — not just a surface inspection — to find and address concealed mould growth.

Mould insurance claims are among the most disputed property claims. Documentation from a certified contractor — assessment findings, scope of works, remediation records, and clearance test results — establishes that mould arose from an insured event and was professionally remediated. If your insurer disputes the extent of mould damage or the required scope, this documentation is the evidence base for an AFCA complaint.

Before a mould remediation contractor starts work, ask:

• Can you show me your current IICRC certification number?
• Will you identify and address the underlying moisture source?
• Will you set up containment before starting remediation?
• Will you conduct or arrange clearance testing on completion?
• What documentation will you provide for my insurer?