Childcare mould in NSW is not simply a building-maintenance issue: it is a regulatory, duty-of-care and parent-communication matter rolled into one, and how a service responds in the first 24 hours largely determines how it unfolds from there. A manager who moves quickly, documents thoroughly and communicates transparently with families usually resolves the situation without escalation. One who delays or minimises typically does not. This guide outlines the practical steps for Illawarra early-childhood and school managers, and is not a substitute for advice from your approved provider, ACECQA, the NSW Department of Education or your own WHS advisers.
Quick answer (BLUF)
When mould is discovered in a childcare centre or school, the right response is to close the affected space immediately, arrange a professional mould inspection, and communicate with parents and staff honestly and quickly. Young children spend most of the day at floor level, are still developing respiratory systems, and cannot reliably communicate what they are experiencing. The NSW Health mould factsheet is the appropriate source to reference in parent communications. Early action with a written inspection report is the fastest path to a safe reopening.
Why early-childhood settings warrant a lower tolerance
Children in early childhood settings spend six to nine hours a day breathing the air in a single room or building. Their immune and respiratory systems are still developing. They spend significant time on the floor, in play areas and in sleep rooms, all at the level where settled spores are most concentrated.
Our guide to mould in babies’ nurseries and toddler rooms covers the underlying biology. Our mould and asthma in the Illawarra guide explains why mould exposure and asthma triggers are closely linked, including in children who have not yet had a formal diagnosis.
For these reasons, the practical threshold for acting on visible mould in a childcare or school setting is lower than in an adult workplace. “It’s only a small patch” is not a sufficient response when the occupants are under five.
Discovery: the first 24 hours
When mould is discovered, whether by a staff member, parent or contractor:
- Photograph the affected area clearly with a timestamp before touching anything. Do not attempt to clean or cover the growth.
- Close the affected room or area. If the growth is in a shared space such as a kitchen, hallway or HVAC duct, seek advice immediately on how far the closure should extend.
- Notify the service’s approved provider, director and WHS officer within the same business day.
- Arrange a professional mould inspection and testing as soon as possible. Same-day or next-day attendance is appropriate for an early-childhood setting.
- Keep a written log of discovery time, who was notified, and what actions were taken. This log becomes important if the matter is reviewed by a regulator.
Do not dilute cleaning product and spray the visible growth in an attempt to resolve the issue before the inspector arrives. That spreads spores, makes extent harder to assess, and does not address the moisture source driving the growth.
Notification and communication basics
Notification obligations in NSW early-childhood settings depend on the type and scale of the issue. This guide does not substitute for your service’s own policies or ACECQA, quality standards obligations. In general terms:
- Families with children in the directly affected room should be notified on the day the decision to close is made, before they drop off children the following morning
- Notification should state what was found, what action has been taken (closure and inspection), and the expected timeline for further information
- Avoid language that minimises (“it’s very minor”) or alarms without evidence (“we believe children may have been harmed”)
- Staff in the affected area should be notified at the same time as families
- Subsequent communications should update families on the inspection findings, the remediation scope and the post-remediation verification plan before reopening
Transparency in the first communication is far better than a drip-feed of information over several days. Families who feel they are not being kept informed escalate complaints faster than those who receive prompt, factual updates.
Room closure vs occupied-works
For any mould job in an occupied childcare or school building, the default should be: affected rooms are closed and empty during works. Full stop.
Our HEPA vacuuming and negative-air containment guide explains why containment matters: without it, remediation activity aerosolises spores into the building air. Attempting to run a childcare group in a room adjacent to active remediation, even with a plastic barrier between them, is not appropriate.
Practical scheduling:
- Small, contained jobs (one room, one cause, clear extent) can often be completed in one to two days if the room is emptied and access is available after hours or over a weekend
- Larger jobs covering HVAC systems, ceiling voids or multiple rooms require the affected zone to be out of use for longer; plan for a realistic programme from the contractor
- Parents should be advised of the closure period and the contingency arrangements before the closure starts
Our mould remediation service works with schools and childcare centres on scheduling that minimises disruption to operations. The what a remediation day actually looks like guide gives a step-by-step walkthrough of what the crew does on site.
Scoping the inspection and remediation
A commercial mould inspection in a childcare or school setting should cover more than the visible growth patch. The inspector should assess:
- The moisture source driving growth (roof, plumbing, condensation, HVAC)
- The full extent of affected materials, including ceiling void access
- HVAC air-handling units and ductwork if the space is ducted
- Whether any soft materials such as carpet, soft furnishings or sleep mats need disposal
- Indoor air quality testing if there is evidence of spore spread beyond the visible area, or if the extent is unclear
The remediation scope should be in writing before any work starts, including what materials will be removed, what the containment and negative-air setup looks like, and what the post-remediation verification step involves.
Post-remediation verification for reopening
A childcare centre or school should not reopen an affected space until independent post-remediation verification confirms that the work was completed to standard and the space is safe. Our post-remediation verification explained guide covers what that process involves.
Post-remediation verification for an early-childhood setting should include:
- Visual inspection confirming all visible growth and affected materials have been removed
- Moisture readings confirming the building materials are within acceptable range
- Air sampling before reopening if growth was extensive or if the HVAC system was involved
| Stage | What happens | Who does it |
|---|---|---|
| Discovery | Photograph, close room, notify | Service staff |
| Inspection | Assess cause, extent, scope | Independent mould inspector |
| Remediation | Containment, removal, drying, treatment | Qualified remediation contractor |
| Verification | Visual, moisture, air check | Independent assessor (different from remediator) |
| Reopening | Document clearance, notify families | Service director |
The verification should ideally be done by an independent assessor who was not the remediation contractor, so the clearance is not self-certified. Include the clearance report in the family communication when announcing the room is ready to reopen.
For an employer-side guide to the same process in adult workplaces, see office mould and sick-building complaints.
Ready to arrange an inspection? Contact us for a quote.
FAQs
Do I have to report mould in a childcare centre to the regulator?
It depends on whether the mould represents a risk to health and safety that is notifiable under your service’s regulatory obligations. This guide does not provide regulatory advice. Speak with your approved provider, your WHS officer, and your service’s own policies. When in doubt, consult the NSW Department of Education directly.
Can we clean the mould ourselves with the centre’s cleaning staff?
No. Cleaning visible mould with standard cleaning products disturbs spores and spreads them through the air. Without proper containment and HEPA vacuuming, a cleaning effort can increase rather than reduce contamination in the space. A qualified mould inspection and professional remediation is the appropriate response.
How long will the centre be closed?
A single-room, contained job in a well-prepared space can often be completed, dried and verified within two to four days. Larger jobs involving HVAC systems, ceiling voids or multiple rooms take longer. Your contractor should provide a realistic programme with milestones, not a vague estimate.
What do we tell parents while we wait for the inspection report?
Tell them: we found mould in [area], we have closed the space, we have arranged a professional inspection for [date], and we will update you when we have the inspection findings. Keep it factual and avoid speculation about health impacts. Parents who receive a prompt, factual communication almost always respond more calmly than the situation warrants on paper.
Can we open other rooms in the centre while one room is being remediated?
Usually yes, provided the contamination is confirmed to be contained to the affected room, the remediation contractor has established proper containment with negative-air pressure in the affected zone, and HVAC systems serving both areas have been checked. Confirm the containment plan with your contractor and document the decision.
Related reading
- Mould in babies’ nurseries and toddler rooms
- Mould and asthma in the Illawarra
- Office mould and sick-building complaints, Illawarra
- Post-remediation verification explained
- HEPA vacuuming and negative-air containment
- Indoor air quality testing and mould
- What a mould remediation day actually looks like
- Mould inspection and testing service
- Mould remediation service