Mould Law for Landlords 2025: What You Need to Know (And How to Stay Compliant)

The new mould law for landlords 2025 has changed the game for rental property compliance across the UK. If you rent out property in Bournemouth, Dorset, or Hampshire, now is the time to act — before penalties hit. In this guide, we explain what the law says, how it affects you, and how Proofterior Group Ltd can help you stay compliant with a free survey.
Example of black mould damage in a rental property – a key issue under the mould law for landlords 2025

🚨 What Is the New Mould Law for Landlords?

Following the tragic death of toddler Awaab Ishak and a growing crisis in rental housing conditions, the government has introduced stricter mould and damp legislation for landlords starting October 2025.

  1. Under the Mould Law for Landlords 2025, you are now legally required to:
  2. Respond to tenant reports of mould or damp within 14 days
  3. Investigate and document the cause of mould, not just clean it
  4. Begin necessary repairs within 7 to 21 days, depending on severity
  5. Provide tenants with written findings and a clear action plan
  6. Maintain rental properties in a condition free from significant mould risks
Surveyor assessing damp as part of a landlord compliance check for mould law 2025

⚠️ What Happens If You Don’t Comply?

Landlords who ignore the new law face serious consequences:

💸 Fines and rent repayment orders

🧾 Enforcement notices from local authorities

❌ Being added to the rogue landlord database

👎 Reputational damage and tenant legal action

This law applies to all landlords, including private lets, HMOs, and letting agents acting on behalf of landlords.

Get Your Free Landlord Compliance Survey

No matter what type of damp you have, contact Proofterior for a property survey. Our fully trained surveyors will provide you with effective solutions whether damp & wet rot, dry rot, or woodworm, leaving you free to enjoy your damp-free home.

🧰 What Are Your Responsibilities?

You must address the root causes, not just clean visible mould. That includes:
  1. Fixing leaks or rising damp
  2. Improving ventilation (e.g., fans in kitchens/bathrooms)
  3. Upgrading insulation to reduce cold surfaces
  4. Ensuring airbricks and passive vents are unobstructed
  5. Installing systems like dry lining membranes or thermal plaster
You can’t blame mould on tenant behaviour unless you’ve taken proactive steps to prevent it.  

📖 Understanding and Addressing the Health Risks of Damp and Mould (GOV.UK)

✅ How Proofterior Helps Landlords Stay Compliant

We offer a free mould and damp compliance survey to help landlords across:

  • Bournemouth
  • Christchurch
  • Poole
  • Southampton
  • Weymouth
  • All of Dorset & Hampshire

Our qualified team will:

✅ Survey your property inside and out
✅ Take digital moisture and humidity readings
✅ Assess ventilation, insulation, and structural damp
✅ Provide a written report with actionable next steps
✅ Supply documented evidence for tenant records or local authority compliance

💡 Don’t Wait – Act Before the Law Is Enforced

Even if you haven’t had complaints yet, the law expects you to be proactive. Taking action now shows tenants, councils, and letting agents that you take your responsibilities seriously. Proofterior is ready to help. Our friendly, experienced surveyors will guide you every step of the way — free of charge.

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