Here's how to remove mould from walls – fast

Unsightly, unhealthy and unwelcome, mould growing on walls is a real problem at this time of year. Here's how to get rid of it quickly – and keep it away

How to remove mould from walls: HG mould spray in use in bathroom
(Image credit: HG)

Need to know how to remove mould from walls? If you've noticed small black dots – or patches – forming, it's best to get rid of them quickly. Ignore them and the problem will get worse. The downside? Breathing in mould spores is bad for you and can make problems like allergies and asthma worse; the mould itself can damage plaster and wall coverings, too. 

Read on for quick ways to remove mould from walls – and if you've got mould elsewhere in your home, from shower curtains to tile grout, go to our guide to get rid of mould.

1. Remove mould from walls with bleach and water

Start by making a solution of one part bleach to three parts water, or use a household bleach spray. Apply to the mould, scrub with a stiff brush, rinse and dry. Repeat if necessary.

2. Use a mould spray to get rid of mould from walls

You can use a mould and mildew spray remover – both on walls and other surfaces around the home (always check the application areas before buying). We've reviewed the best mould sprays you can buy; the list includes super-strong and eco-friendly products – take a look to see if there's one there for you. Want a fail-safe product? There are our favourites, at the best prices (scroll beyond the video).

3. Remove mould from walls with baking soda

Baking powder is a cheap, gentle cleaning agent; combine a teaspoon of washing up liquid with a cup of baking soda and add water to mix a paste. Apply to bathroom wall tiles and grout with a stiff brush (an old toothbrush will work well for grout and in hard to reach areas), leave to soak in, then rinse off. Repeat if necessary.

4. Remove mould from bathroom walls with bleach

Again, use bleach diluted one part with two parts water in a spray bottle; apply, allow to dry, apply again and scrub with your stiff brush. Rinse and repeat. 

5. Remove mould from bathroom walls with vinegar

Vinegar – a mild white one is a good choice – can be sprayed on undiluted, left for an hour, then rinsed with hot water and dried with a microfibre cloth.