What to Do If You Find Mould in Your Rental Property
Last updated: 3 August 2025
Step 1: Identify the Type and Extent of Mould
Look for common signs like black spots on walls, a musty smell, or peeling wallpaper. Take clear photos of the affected areas, and note down when you first noticed the issue.
Step 2: Notify Your Landlord in Writing
Inform your landlord or letting agent as soon as possible. Describe the mould, where it is, and attach your photos. Always do this in writing (email is fine) so there’s a record of your complaint.
Step 3: Understand Landlord Responsibilities
In most cases, the landlord is responsible for fixing the underlying cause of damp or mould, especially if it’s due to structural issues, leaks, or poor ventilation. The law requires rented homes to be 'fit for human habitation'.
Step 4: Allow Time for Repairs
Give your landlord a reasonable amount of time to investigate and fix the issue. They may send someone to inspect the property or arrange for repairs. If they ignore the issue, you may need to escalate.
Step 5: Contact Your Local Council
If your landlord doesn’t act, contact your local council’s environmental health department. They can inspect the property and may issue an enforcement notice requiring the landlord to fix the problem.
Step 6: Keep Evidence and Monitor Your Health
Continue to document the mould, including any worsening or spread. Mould can trigger asthma, allergies, or breathing problems — especially in children, the elderly, and people with existing conditions.
Preventative Tips (If You Can)
- Open windows regularly to ventilate rooms
- Avoid drying clothes indoors without proper airflow
- Wipe down condensation on windows and walls
- Use extractor fans in kitchens and bathrooms