How to Get Rid of Mold on Walls: A Step-by-Step Guide

Discovering mould on your walls can be unsettling, and there are real health risks with exposure. Mould thrives in damp environments, so its presence often signals an underlying moisture problem. Here's how to tackle it safely and effectively.

Step 1: Identify and fix the moisture source

The most crucial step is finding and addressing the moisture that allowed mould to grow — a leaky pipe, condensation or excess humidity. Fixing the root cause prevents mould from returning after you clean.

Step 2: Prepare the area

Move furniture away and cover everything with plastic sheets to stop spores spreading. Ensure good ventilation by opening windows, but keep doors to other rooms closed.

Step 3: Choose your cleaning solution

For non-porous surfaces, 1 part bleach to 10 parts water is effective. For porous materials like unpainted drywall, avoid bleach — use water and detergent, or natural alternatives like undiluted vinegar or a baking soda paste.

Step 4: Scrub the mould away

Wear gloves, goggles and a mask, then scrub with a stiff brush soaked in your solution. With bleach or vinegar, letting it dry on the wall afterward helps kill remaining spores.

Step 5: Dry the area thoroughly

Use fans or dehumidifiers to dry the area completely — no moisture left behind.

Step 6: Repaint if necessary

If there's significant discolouration, repaint with mould-inhibiting paint to prevent regrowth.

Step 7: Prevent future growth

Keep your home dry and well ventilated, use dehumidifiers in damp areas, and address leaks or condensation promptly.

When to call the professionals

If mould coverage is extensive or you're sensitive to it, professional removal is safer — experts have the equipment to handle severe problems without risking your health. Contact us for help.

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