How to Get Rid of Bathroom Mould with This £1 Kitchen Staple

On Your Home Your Heart, learn how to get rid of bathroom mould for good with this incredible £1 kitchen cupboard hero and simple expert tips that actually kill mould instead of just hiding it!

Bathroom mould is a common household headache that returns quickly if not tackled properly. Many people reach for bleach, but this popular cleaner only changes the colour of mould without killing the spores or addressing the root cause. The real problem is excess moisture, and simple, inexpensive household items can provide a far more effective solution.

Why Mould Keeps Coming Back: The Role of Moisture

A single hot shower in a small bathroom can release up to 1.5 litres of water vapour into the air. Without proper ventilation, this moisture settles on the coldest surfaces—such as tiles, mirrors, walls, and ceilings—creating ideal conditions for mould to grow within days.

According to Uri ‘Ori’ Pearl, owner of Nealon Insulation, mould thrives in damp environments, particularly around showers, baths, and window frames. While cleaning visible patches is important, long-term control depends on reducing moisture and using treatments that genuinely kill the spores rather than just masking the problem.

How to Get Rid of Bathroom Mould

White Vinegar: The £1 Natural Mould Killer

One of the most effective and affordable mould treatments is white distilled vinegar, which typically costs around £1 per litre at supermarkets. Its natural acidity penetrates and kills mould spores on contact, disrupting the conditions they need to survive.

To use it, pour undiluted white vinegar into a spray bottle and generously coat the affected areas. Leave it to work for at least an hour before wiping clean. The vinegar smell dissipates quickly once the room is ventilated. This method is safe for most bathroom surfaces and offers an eco-friendly alternative to harsh chemical sprays.

For bathrooms without windows, run the extractor fan during and after cleaning, and leave the door open briefly to promote air circulation.

Hydrogen Peroxide: A Powerful Cupboard Staple

Another inexpensive and effective option is 3% hydrogen peroxide, readily available from chemists and supermarkets. It kills mould on contact and works especially well on grout lines and tile edges where mould often hides.

Apply it directly to the affected spots and leave for about 10 minutes. You may notice bubbling as it reacts with the mould—this is a sign it is actively breaking it down. Wipe the area clean afterwards. Hydrogen peroxide provides a slightly stronger action than vinegar while remaining affordable and easy to source.

Bicarbonate of Soda Paste for Stubborn Sealant Mould

The sealant around baths and shower trays is a frequent trouble spot. A simple paste made from bicarbonate of soda and white vinegar can tackle even entrenched mould here.

Mix the two ingredients into a paste, apply it with an old toothbrush, and leave for around 20 minutes before rinsing. This combination lifts grime and kills mould without expensive branded products. Together, vinegar and bicarbonate of soda cost less than a coffee yet deliver excellent results across multiple cleaning sessions.

Proven Ways to Prevent Condensation and Mould Regrowth

Effective mould prevention starts before the shower even begins:

• Ventilate from the start: Open the window and switch on the extractor fan before turning on the hot water. This captures steam early and stops it from spreading.
• Extended ventilation: Keep the extractor running for 15–20 minutes after showering. Close the bathroom door to contain moisture and prevent it from spreading into the rest of the home.
• Wipe down surfaces: After showering, use a dry cloth or inexpensive squeegee to remove water from tiles, shower screens, and other cold surfaces. This small habit significantly reduces the moisture available for mould growth.

Consider a Small Dehumidifier for Persistent Dampness

In bathrooms without windows or with weak extractor fans, a compact dehumidifier can make a big difference. Running it for just an hour after showering removes excess moisture from the air before it condenses on surfaces. This extra step is particularly helpful in colder months or poorly ventilated spaces, making the environment much less hospitable to mould.

Final Thoughts

Dealing with bathroom mould does not require expensive specialist products or complicated routines. White vinegar stands out as the top low-cost hero, with hydrogen peroxide and bicarbonate of soda providing strong support for tougher areas. Combine these treatments with better ventilation habits and surface drying, and you can dramatically reduce mould growth for good.

By addressing both the visible mould and the underlying moisture issues, these simple cupboard staples deliver lasting results without breaking the bank.