Bathrooms are notoriously the perfect breeding ground for mould. With constant exposure to high humidity and damp surfaces, it doesn’t take long for mould in the bathroom to develop if proactive preventative measures aren’t taken. Not only is bathroom mould unsightly, but it can also cause health issues and structural damage, especially the dangerous variety known as black mould in the bathroom, if left unchecked.
At ResiSure, we provide landlords, BTR operators, social housing providers, and property managers with advanced technology to monitor humidity, damp, and mould risks. But even with cutting-edge technology, prevention is always better than cure. So, what are the best ways to answer the crucial question: How do you prevent mould in the bathroom in the first place?
Why Is Mould Common in Bathrooms, and How to Stop It?
Bathrooms are inherently humid spaces. Hot showers and baths create condensation, which settles on walls, ceilings, and, crucially, porous materials like grout and tiles in the bathroom. Poor ventilation, lingering moisture, and organic residues like soap scum further fuel mould growth.
Without regular maintenance and adequate airflow, mould can quickly take hold, causing damage and potential health risks. This section will detail precisely how to stop mould in the bathroom before it takes over.
How do you Prevent Mould in the Bathroom? Top Tips
1. Improve Ventilation
Good airflow is the most critical step to reducing humidity and preventing bathroom mould. Advise your tenants to:
- Open a window to let out steam immediately after using the shower or bath.
- Use an extractor fan to vent moisture outside. Ensure fans are correctly maintained and used for at least 15-20 minutes after bathing.
- Leave the bathroom door ajar when possible to improve air circulation throughout the day.
- For windowless bathrooms, consider investing in a high-quality dehumidifier or upgrading the ventilation system to keep the air dry.
2. Dry Surfaces After Use
Moisture left on mould tiles in the bathroom, grouting, and shower trays provides the perfect habitat for mould spores. To prevent this, tenants should wipe down wet surfaces after every use, including:
- Shower walls and screens.
- Bathtub and sink.
- Bathroom tiles and grout.
A simple microfiber cloth or squeegee can make a huge difference in how to stop mould in the bathroom.
3. Maintain Bathroom Textiles
Textiles like towels, rugs, and shower curtains can trap moisture. To keep mould in the bathroom at bay:
- Extend the shower curtain fully after use to prevent creases where water can collect. Use mould-resistant materials.
- Replace or wash hand and bath towels regularly, ensuring they are hung to dry fully outside the bathroom.
4. Monitor Humidity Levels
Keeping bathroom humidity between 50-70% is ideal for preventing mould. If mould is a persistent issue in your property, provide a hygrometer to monitor levels and act when they consistently rise.
5. Use Mould-Resistant Materials
When renovating or redecorating, choose materials that are inherently mould-resistant:
- Mould-resistant paints for walls and ceilings.
- Mould-resistant sealants around sinks, baths, and showers.
- Consider grout-free or large-format tile designs with smooth, easy-to-clean materials to minimise surfaces where mould in the bathroom can grow.
6. Incorporate Air-Purifying Plants
Certain plants can absorb moisture and improve air quality, making them great allies in mould prevention. Consider adding:
- English Ivy: Removes airborne mould spores.
- Boston Fern: Thrives in humid environments.
- Reed Palm: Absorbs moisture through its leaves.
- Tillandsia: Perfect for bathrooms with natural light.
7. Establish A Regular Cleaning Routine
A weekly cleaning schedule will help remove mould-promoting residues like soap scum and limescale. Ask your tenants to pay special attention to:
- Tiles and grout.
- Shower trays and screens.
- Corners and hidden crevices.
Natural remedies like white vinegar and baking soda are effective and eco-friendly ways to clean. For persistent issues, consider products specifically designed to prevent mould regrowth.
How to Get Rid of Mould in the Bathroom (When Prevention Fails)
If you or your tenants notice visible mould, particularly the more stubborn black mould in the bathroom, immediate action is required.
For small patches:
A solution of white vinegar (undiluted) or a dedicated mould cleaner applied directly to the affected mould tiles in the bathroom and grout, scrubbed, and then rinsed, can be highly effective.
For larger or recurring issues:
This indicates a deeper moisture problem. You must address the source of the dampness, which may require professional assessment of ventilation, plumbing, or structural integrity.
How ResiSure Can Help
Preventing bathroom mould requires a proactive approach, combining proper ventilation, regular cleaning, and effective moisture control. By leveraging advanced monitoring solutions like ResiSure, you can put yourself one step ahead.
Our technology provides an extra layer of protection by giving you the power to prevent mould accumulation before it takes hold in a bathroom and stop mould coming back time and time again.
ResiSure offers monitoring solutions that track humidity, damp, and mould risk in real-time, allowing you to understand trends and take action before your bathroom falls into disrepair. By addressing potential problems before they escalate into a need to figure out how to get rid of mould in the bathroom, ResiSure supports landlords and property managers in creating healthier living environments for residents, saving you time, money, and hassle.
Stay Proactive With ResiSure
Want to find out more about tenant-focused legislation that could impact your portfolio or managed properties? Stay in the loop with the latest in property compliance with our free-to-download guide to the Renters’ Rights Bill across the Private Rented Sector. Inside, you’ll find invaluable insights into upcoming legislation, and why issues such as mould prevention across your properties are set to be so critical in 2025 and beyond – fill out the form below to download your guide!