What Landlords Need to Know About New Mould Laws in 2025

As of 2025, landlords across the UK face stricter legal responsibilities when it comes to managing mould and damp in rental properties. These new regulations, including Awaab’s Law and the upcoming Renters’ Rights Bill, are designed to protect tenants’ health by ensuring landlords act quickly and effectively to resolve mould issues.

In this post, we’ll break down what these laws mean for landlords, how to comply, and why investing in proper ventilation and mould treatment is more important than ever.
 

Understanding Awaab’s Law: A Landmark Change in Social Housing

Named after Awaab Ishak, a toddler who tragically died due to prolonged exposure to toxic mould, Awaab’s Law became law in 2023 and will be fully enforced in social housing from October 2025. It mandates social landlords to:

  • Address serious mould and damp issues within 24 hours
  • Investigate hazards within 14 days and begin repairs within 7 days
  • Provide written reports and updates to tenants throughout the process

This law sets clear deadlines and holds landlords accountable for maintaining safe, healthy homes. Failure to comply can result in legal penalties and damage to reputation.
 

The Renters’ Rights Bill: Expanding Protections to Private Landlords

While Awaab’s Law currently applies to social housing, the forthcoming Renters’ Rights Bill aims to extend similar protections to the private rental sector by mid-2025 or 2026.

  • Under this bill, private landlords will be legally required to:
  • Quickly remediate mould and damp issues to meet Decent Homes Standards
  • Ensure adequate ventilation systems are in place to prevent recurrence
  • Cooperate with tenant complaints and new ombudsman processes

This represents a major shift in landlord obligations, with increased risks of enforcement action for non-compliance.


Why These Laws Matter

Health and Safety

Mould can cause or worsen respiratory issues, allergies, and other health problems, especially for children, the elderly, and those with pre-existing conditions.

Legal and Financial Risks

Ignoring mould issues can lead to:

  • Fines and legal action
  • Compensation claims
  • Costs of emergency repairs and tenant relocation

Protecting Your Investment

Proper ventilation and early mould treatment help preserve your property’s structure and value over time.

 

How Landlords Can Prepare and Comply

  1. Conduct Regular Inspections
    Schedule routine checks for damp and mould, especially in kitchens, bathrooms, and poorly ventilated rooms.
  2. Respond Quickly to Complaints
    Have a clear process to investigate and resolve tenant reports within the required timeframes.
  3. Upgrade Ventilation Systems
    Install or improve ventilation, such as extractor fans or MVHR systems, to reduce moisture buildup.
  4. Use Professional Mould Treatment Services
    Engage specialists who safely remove mould and address underlying causes to prevent recurrence.
  5. Keep Detailed Records
    Document all inspections, communications, and remedial work to demonstrate compliance.

How Lulec Ventilation Solutions Can Help

At Lulec Ventilation Solutions, we understand the challenges landlords face under these new regulations. Our expert team offers:

  • Free site surveys and ventilation assessments
  • Professional mould treatment and remediation
  • Installation of compliant ventilation systems, including MVHR
  • Maintenance services and compliance certification

Stay ahead of the curve and protect your tenants and property by partnering with us.

New mould laws in 2025 mark a turning point in landlord responsibilities, emphasising swift action and prevention. By understanding these changes and investing in the right ventilation and mould treatment solutions, landlords can ensure safe homes, avoid penalties, and protect their investments for years to come.

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