Can You Paint Over Mould?

Why Painting Over Mould is a Common Mistake

When you spot mould on a wall or ceiling, the quickest solution might seem like covering it up with a fresh coat of paint. But here’s the truth: painting over mould won’t solve the problem—it hides it temporarily.

Whether you’re a homeowner trying to restore your property or a tenant dealing with mould in a rented home, it’s important to understand the risks involved in simply painting over mould and what you should do instead.

If you’re a tenant and your landlord hasn’t addressed the root cause of mould, you may be entitled to make a damp and mould claim.

Can You Paint Over Mould?

Technically, yes—you can paint over mould. But that doesn’t mean you should.

Here’s Why It’s a Bad Idea:

• The mould will grow back quickly, often within days or weeks

• It can spread further underneath the paint, making the problem worse

• Paint won’t kill mould spores or remove the moisture that causes them

• Health risks remain, including breathing problems and allergic reactions

Painting over mould without treating the underlying issue is like putting a plaster on a broken pipe—it may hide the problem, but it won’t fix it.

Why Mould Grows in the First Place

Mould develops in damp and humid areas where moisture has no way to escape. Common causes include:

• Poor ventilation in bathrooms and kitchens

• Leaking pipes, roofs, or windows

• Rising damp in older buildings

• Condensation build-up

• Structural issues or water ingress

If the source of damp isn’t resolved, the mould will keep returning, no matter how many coats of paint you apply.

To properly address the issue, read our guide on how to remove mould from walls first.

What Happens If You Paint Over Mould?

1. The Paint May Peel or Bubble

Mould holds moisture under the surface, which can cause the paint to peel off shortly after application.

2. Stains Will Reappear

Even if you cover it with emulsion or ceiling paint, black mould stains often bleed through the new coat, leaving unsightly marks.

3. Health Hazards Stay Hidden

Mould spores remain active beneath the surface and can continue affecting your health, especially for those with asthma, allergies, or weakened immune systems.

4. You Could Be Masking a Serious Problem

Painting over mould may delay necessary repairs and allow structural damage to worsen over time.

What You Should Do Before Painting a Mould-Affected Wall

If you must paint, make sure to:

Step 1: Identify and Fix the Source

Repair leaks, seal gaps, and improve ventilation. If you’re renting, report the problem in writing to your landlord.

Step 2: Clean and Kill the Mould

Use mould-killing solutions such as white vinegar, specialist sprays, or anti-fungal cleaners. Scrub and rinse thoroughly.

Step 3: Let the Wall Dry Completely

Use a dehumidifier or heater to ensure the surface is dry before moving to the next step.

Step 4: Apply a Mould-Resistant Primer

Before using regular paint, use a primer or sealer designed to resist mould growth. This creates a protective barrier.

Step 5: Use Anti-Mould Paint

Choose mould-resistant paint for bathrooms and kitchens. These are formulated to withstand humid environments and help prevent future outbreaks.

Is Your Landlord Painting Over Mould Instead of Fixing It?

In rental properties, landlords often try to hide mould by painting over it without addressing the underlying cause. This is not just poor practice—it may be illegal.

Under the Homes (Fitness for Human Habitation) Act 2018, landlords must ensure properties are safe, healthy, and free from hazards such as damp and mould. If they fail to carry out proper repairs, you have the right to seek compensation.

Explore our guide to housing disrepair claims and see if you’re eligible.

When Should You Make a Housing Disrepair Claim?

If you’ve reported mould to your landlord and nothing has been done—or they’ve only tried to cover it up with paint—you can take action.

You may be entitled to claim:

• Health problems caused by mould

• Damage to personal belongings (furniture, clothes, etc.)

• Emotional stress or inconvenience

• Uninhabitable living conditions

At Housing Disrepair Team, we specialise in helping tenants across the UK claim repairs and compensation on a no-win, no-fee basis.

Please Note: The solicitor we recommend will charge you a fee of 36% (inclusive of VAT) off your compensation. The solicitor may charge a termination fee if you cancel your agreement with them after the cancellation period, please read their Terms and conditions for more information.

Final Takeaway: Don’t Paint Over the Problem, Fix It

Painting over mould is never a long-term solution. It may look better temporarily, but the mould will return, and your health could suffer in the meantime. The only way to stop mould permanently is to treat the root cause.

If your landlord is ignoring your repair requests or simply painting over the issue, you don’t have to accept it.

Get Help Today:

• 📩 Fill out our online claim form for a free consultation

• 📄 Learn more about damp and mould claims

• 📚 Read our related blog: How to Remove Black Mould from Silicone Sealant