Mould, that unsightly patch on your ceiling or walls, is a type of fungus that thrives in damp, poorly ventilated areas. It spreads through microscopic spores in the air and can grow on surfaces like plaster, timber, tiles, and even fabric when moisture levels are high. Beyond being an aesthetic issue, mould can cause musty odours, damage building materials, and aggravate allergies or respiratory issues. That’s why treating mould early (and properly) is essential for maintaining a healthy home.

Here’s a helpful guide on how to get rid of mould from your ceiling or walls.

A Quick (but Important) Disclaimer

While these methods can help with small, surface-level patches, mould problems can sometimes indicate hidden leaks, structural moisture, or extensive fungal growth. In those cases, a professional is always the best person to diagnose and treat the issue safely and thoroughly.

Start With a Proper Clean Using Vinegar or a Mild Detergent

White vinegar is one of the more effective household solutions for removing mould. Simply spray undiluted vinegar onto the affected area and let it sit for at least an hour. Then scrub with a soft cloth or brush and rinse lightly. You can also mix a small amount of mild detergent with warm water to gently wipe down surfaces. This works well on painted walls and can help break down spores without damaging your paintwork.

Use a Specialised Mould Removal Product

When mould is more widespread or stubborn, commercial mould removers can be useful. These products are formulated to penetrate porous surfaces and kill mould at the root. Always follow the product instructions carefully, wear gloves and a mask, and ensure there is plenty of ventilation.

Improve Ventilation and Reduce Moisture

So you’ve removed the unsightly patch on your walls - but cleaning mould without addressing the moisture is a recipe for its return.  Open windows, run exhaust fans, and consider using a dehumidifier - especially in bedrooms, laundries, and bathrooms. Improving airflow reduces humidity and creates an environment where mould struggles to grow. 

For ceilings or walls near bathrooms, moisture control is especially critical. Make sure the bathroom is thoroughly dried before cleaning and avoid using the shower for a few hours afterwards so the surface stays dry.

Treat Bedroom vs Bathroom Mould Differently

Mould on a bedroom ceiling is usually caused by poor ventilation or condensation. A gentle approach, like vinegar, detergent, and airflow improvements, is usually effective.

In a bathroom, however, mould tends to be more stubborn due to constant humidity. Before cleaning, dry the area with the exhaust fan or a towel. Avoid cleaning while the room is steamy, as moisture reduces the effectiveness of cleaning products and allows mould to spread. After cleaning, keep the room dry for as long as possible to prevent regrowth.

If mould keeps coming back - or you simply want someone else to do the job - our friendly Bizzi Beez team is always here to help. Give us a buzz on 1800 646 477 or book an appointment today.