How to add a mould remediation division to your restoration business – and do it right!..
(An adapted article by Nate Cisney for Cleanfax, March 25, 2025)
In many cases, restoration companies offer mould remediation without fully understanding or adhering to the required industry standards. A common mistake involves approaching mould removal with inadequate containment, insufficient personal protective equipment (PPE), and improper disposal methods. This can result in further contamination and potential harm to both technicians and occupants.
Clients are often told that mould is hazardous to health – particularly for immunocompromised individuals, young children, and the elderly – but without following appropriate protocols, this message becomes inconsistent and may undermine trust. For example, allowing unprotected staff to work in contaminated areas or using equipment like fans that disturb mould spores only increases the risk of exposure.
Proper PPE, containment procedures, HEPA filtration, and validated cleaning and clearance methods are essential to mitigate risk and align with best practices in the industry
Key Considerations Before Offering Mould Remediation
Before introducing mould remediation as a service, restoration professionals should evaluate the following:
- Training & Certification:
Technicians should hold recognised certifications such as the IICRC’s Applied Microbial Remediation Technician (AMRT) or similar qualifications. - Legal and Insurance Requirements:
While New Zealand does not currently require specific mould remediation licences, companies must ensure appropriate insurance and compliance with the Health and Safety at Work Act 2015. - Investment in Equipment:
Mould remediation requires specialised tools including HEPA-filtered air scrubbers, negative air machines, PPE, containment materials, and moisture detection instruments. - Health and Safety Considerations:
Stagnant water can harbour harmful pathogens, and wet surfaces can lead to slips, falls, and accidents. Conducting a water damage assessment helps identify these hazards and ensures the safety of everyone in the affected area, particularly during clean-up and repairs.Cleaning Systems – Ascend Training offers several courses to upskill in all these areas;
2-Day Water Damage Restoration & Structural Drying Course, IICRC Health & Safety Technician Course - Assessment and Testing:
Independent assessment is recommended to verify successful remediation.
(See Cleaning Systems Ltd resource article “Water Damage Assessments & Mould Sampling”) - Documentation and Scope of Works:
Detailed documentation is essential for transparency, insurance, and liability protection. - Market Competitiveness:
Businesses must compete on quality, professionalism, and compliance. - Liability Risk:
Mould is a recognised environmental health hazard requiring careful management.
The Role of Mould Sampling
Where there is water, there is a high likelihood of mould growth if moisture is not quickly and properly mitigated. Mould thrives in damp, warm environments, and can begin growing within 48 hours of water exposure. Mould sampling plays a critical role in both detecting the presence of mould and assessing its impact.
Here’s why mould sampling is essential:
- Early Detection of Hidden Mould: Mould can grow in hidden areas, such as behind walls, under floors, or in ventilation systems. Mould sampling allows for early detection, even when it is not visible to the naked eye. This ensures that mould problems are addressed before they become widespread, reducing the health risks and cost of remediation.
- Determining Mould Type: Not all moulds are created equal. Some types of mould, such as Stachybotrys (commonly known as black mould), are particularly hazardous to human health. Mould sampling helps identify the type of mould present in the property, enabling targeted remediation strategies that address the specific health risks posed by the type of mould.
- Health Implications: Exposure to mould can cause a range of health problems, from mild allergic reactions to more serious respiratory issues and infections. People with asthma, allergies, or compromised immune systems are particularly vulnerable. Mould sampling provides crucial information on the concentration of mould spores in the air, helping to gauge the level of risk to occupants.
- Ensuring Thorough Remediation: After water damage has been repaired, mould sampling can confirm whether remediation efforts have been successful. Post-remediation testing ensures that the mould has been adequately removed and that spore levels have returned to safe levels.
- Documenting Conditions for Legal or Insurance Purposes: Like water damage assessments, mould sampling is often required for insurance claims, legal disputes, or health inspections. It provides objective, scientifically valid data that can be used in reports to certify that a property is safe and free from mould-related hazards.
(Read the full article on “Water Damage Assessments & Mould Sampling” – Cleaning Systems Resource Library)
Considering Mould Remediation as a Service Offering?
Mould remediation, when executed to the highest standard, contributes to healthier environments and positions service providers as trusted professionals.
Furthermore, both water damage AND mould assessments should be conducted by professionals who have the necessary training and equipment. Water damage can involve complex factors, such as moisture mapping, infrared thermography, and assessing the porosity of affected materials. Similarly, mould sampling requires specialised tools to collect air and surface samples, which are then analysed in a laboratory.
Training Pathways for Mould Remediation Professionals:
Cleaning Systems NZ, through its Ascend Training division, delivers a range of industry-recognised courses to help businesses and technicians develop the necessary skills and knowledge for safe and effective mould remediation in New Zealand.
Training Pathways
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