What is yellow mould on walls and how do I get rid of it?

White walls, floor and furniture with yellow and blue mould
(Image credit: Getty Images)

No-one wants yellow mould on walls around the home. It doesn’t look great and if not treated can cause unwanted health issues. It also tells you that you might have a problem such as rising damp in your walls. Your damp course could have broken down and needs replacing.

The cause might not be as drastic as a new damp course, but whatever the reason you need to be removing mould from walls, doors, ceiling, skirting boards and anywhere else as quickly as possible. The sooner it's gone the better it will be for your home and health.  

What is yellow mould on walls?

Steve Jenkins

Steve Jenkins is a freelance content creator with over two decades of experience working in digital and print and was previously the DIY content editor for Homebuilding & Renovating. 

He is a keen DIYer with over 20 years of experience in transforming and renovating the many homes he has lived in. He specialises in painting and decorating, but has a wide range of skills gleaned from working in the building trade for around 10 years and spending time at night school learning how to plaster and plumb.

He has fitted kitchens, tiled bathrooms and kitchens, laid many floors, built partition walls, plastered walls, plumbed in bathrooms, worked on loft conversions and much more. And when he's not sure how to tackle a DIY project he has a wide network of friends – including plumbers, gas engineers, tilers, carpenters, painters and decorators, electricians and builders – in the trade to call upon.