How to Remove Mould from Walls in 5 Easy Steps

Mould on walls is more than just an eyesore—it can be harmful to your health and damage your home. Whether it’s in your bathroom, kitchen, or basement, getting rid of mould quickly is essential.

Fortunately, there are natural remedies and commercial products that can help. Here’s a step-by-step guide to safely remove mould from walls using both natural and chemical solutions.

Before you start scrubbing, it’s important to understand what you’re dealing with. Mould thrives in damp, poorly ventilated areas, often caused by leaks, condensation, or high humidity. Identifying the source of moisture will help prevent mould from coming back after removal.

Common Types of Mould on Walls:

• Black Mould (Stachybotrys) – Toxic and requires immediate removal.
• Green Mould (Aspergillus, Cladosporium, Penicillium) – Common in homes, less toxic but still harmful.

What to Do:

• Inspect the area for leaks or excessive moisture.
• If mould covers more than 10 square feet, consider professional removal.
• Ensure good ventilation before starting the cleaning process.

Identify the Type and Cause of Mould

Before you start scrubbing, it’s important to understand what you’re dealing with. Mould thrives in damp, poorly ventilated areas, often caused by leaks, condensation, or high humidity. Identifying the source of moisture will help prevent mould from coming back after removal.

Common Types of Mould on Walls:

• Black Mould (Stachybotrys) – Toxic and requires immediate removal.
• Green Mould (Aspergillus, Cladosporium, Penicillium) – Common in homes, less toxic but still harmful.

What to Do:

• Inspect the area for leaks or excessive moisture.
• If mould covers more than 10 square feet, consider professional removal.
• Ensure good ventilation before starting the cleaning process.

Gather Your Cleaning Supplies

Depending on your preference, you can use natural solutions or store-bought mould removers. Here’s what you’ll need:

Natural Solutions:

• White vinegar (kills 82% of mould species)
• Baking soda (absorbs moisture and deodorizes)
• Hydrogen peroxide (antifungal and antibacterial)
• Tea tree oil (natural antifungal agent)

Chemical Products:

• Bleach (kills surface mould but doesn’t prevent regrowth)
• Commercial mould remover (formulated for deep mould removal)
• Ammonia (effective but should never be mixed with bleach)

Other Tools Needed:

• Rubber gloves
• Mask (to avoid inhaling spores)
• Scourer or sponge
• Super Cloth or Microfiber cloth
• Spray bottle
• Bucket

Remove Mould by Applying Your Chosen Mould Remover

Option 1: Natural Remedies

Vinegar Solution

• Pour undiluted white vinegar into a spray bottle.
• Spray the affected area and let it sit for at least an hour.
• Scrub with a brush and wipe clean with a damp cloth.

Baking Soda & Water Paste

• Mix 1 tablespoon of baking soda with water to create a paste.
• Apply to mouldy areas, let it sit for 10 minutes, then scrub off.
• Wipe with a damp cloth and spray vinegar for extra prevention.

Hydrogen Peroxide Solution

• Use 3% hydrogen peroxide in a spray bottle.
• Apply directly, let it sit for 10 minutes, then wipe clean.

Option 2: Chemical Cleaners

Bleach Solution

• Mix 1 cup of bleach with 1 gallon of water.
• Apply with a sponge, scrub, and rinse thoroughly.
• Ensure proper ventilation while using bleach.

Commercial Mould Removers

• Follow manufacturer instructions for application.
• Some products require rinsing, while others do not.

Monitor and Maintain a Mould-Free Home

Even after thorough cleaning, mould can return if conditions remain favorable. Keep an eye on problem areas and act quickly at the first sign of moisture. Regular maintenance will ensure your home stays fresh, clean, and mould-free.

By following these five steps, you can effectively remove and prevent mould using both natural and chemical solutions. Choose the method that best suits your home and health preferences, and enjoy a cleaner, healthier living space!