Last Updated on March, 2025
Bathroom mould is a nightmare. It’s unsightly, bad for your health, and if left unchecked, it just keeps coming back.
Luckily, learning how to remove mould isn’t complicated.
With the right tools, a bit of effort, and some proactive steps, you can remove mould, tackle the mould spores, and even keep them from returning. Let’s get started.
Quick Summary
- Use solutions like vinegar, baking soda, bleach, or tea tree oil, combined with scrubbing and drying, to remove mould from bathroom surfaces effectively.
- Prevent mould by improving ventilation, eliminating moisture, cleaning regularly, and fixing leaks promptly to stop mould from returning.
- If mould covers a large area (more than 1m²) or persists despite cleaning, consult a professional to address hidden sources and ensure long-term mould prevention.
Tools You’ll Need to Remove Mould
Before diving in, gather these essentials:
- Spray bottle
- White vinegar, baking soda, or bleach
- Tea tree oil (optional, for a natural alternative)
- A scrubbing brush or old toothbrush
- Protective gloves, safety glass, and a mask
- A microfibre cloth for drying
Step-By-Step Guide to Remove Bathroom Mould
Step 1: Prep the Bathroom
Start by turning on the exhaust fan or opening a window. Proper airflow is key to reducing moisture and keeping mould spores from spreading.
Step 2: Choose Your Cleaner
Pick the quickest solution based on what you have at home:
- Vinegar Solution: Mix four parts vinegar with one part water. It’s a great natural remedy for killing mould.
- Baking Soda Paste: Mix bicarbonate soda with water until it forms a thick paste. It’s safe for grout and non-porous surfaces.
- Bleach Solution: For tough jobs, dilute one part bleach with three parts water. It’s effective at killing mould, but it can damage coloured grout.
- Tea Tree Oil: A few drops mixed with water in a spray bottle work as a mild but effective mould removal option.
Step 3: Apply and Wait
Spray your chosen cleaner onto the affected area. Make sure to soak the mould thoroughly, and leave it for a few hours to break down the mould build-up.
Step 4: Scrub, Scrub, Scrub
Use a scrubbing brush or an old toothbrush to tackle grout, tiles, and other problem spots. You’ll need some elbow grease to get into tight spaces like corners or around taps.
Step 5: Wipe and Dry
Once you’ve scrubbed the mould away, use a damp microfiber cloth to clean mould residue. Then, dry the area completely to ensure no moisture is left behind.
Read more:
Why Does Mould Happen?
Bathrooms are a perfect breeding ground for mould growth. Warm air, damp surfaces, and poor airflow create an environment where mould feeds on organic matter like soap scum and dead skin cells.
If you notice visible mould on your shower curtain, bathroom walls, or grout, it’s time to take action.
Here are the most common culprits behind mould problems:
- Moisture: Steam from hot showers creates condensation on tiles and other smooth surfaces.
- Leaks: Drips from bathroom taps or hidden plumbing leaks provide a constant water source.
- Poor Ventilation: Without exhaust fans or open windows, moist air lingers and allows mould to grow.
- Neglecting Wet Areas: Wet towels, puddles in shower recesses, and damp bath mats encourage mould growth.
Dealing With Stubborn Mould
Sometimes, removing mould isn’t enough – especially when it’s deep in silicone sealant or grout. If this happens:
- Scrape out the damaged grout or sealant.
- Reapply fresh grout or silicone sealant to seal the surface.
- Seal the grout to protect it from future mould problems.
If the mould covers a large area or keeps returning, it might be time to call a mould expert.
How to Prevent Mould?
Preventing mould is easier than fighting it. Follow these tips to stop mould from taking hold:
1. Improve Ventilation
- Turn on exhaust fans or open windows after every shower.
- Keep the bathroom well ventilated for at least 10 minutes to remove moist air.
2. Eliminate Moisture
- Use a squeegee to remove water from shower recesses and smooth areas.
- Dry damp walls, tiles, and corners with a microfibre cloth.
3. Regular Maintenance
- Clean grout and shower curtains weekly to avoid mould build-up.
- Wash towels, mats, and shower curtains regularly to prevent mould from forming.
4. Fix Leaks Quickly
- Repair drips from taps or hidden leaks behind walls as soon as possible.
DIY Mould Removal Alternatives
Looking for extra ways to kill mould? Here are some tried-and-true methods:
- Hydrogen Peroxide: Use it on grout or tiles for stubborn spots.
- Tea Tree Oil Spray: A natural option that smells fresh and tackles mild mould problems.
- Store Bought Mould Killer: For tough black mould, these solutions are designed to work fast.
Types of Bathroom Mould
Not all mould looks the same. Here are the most common types:
- Black Mould (Aspergillus niger): This aggressive mould often grows on grout and walls. It’s linked to serious health issues like breathing problems and allergic reactions.
- Green Mould (Aspergillus fumigatus): This type spreads quickly in damp spaces.
- Yellow Mould (Aspergillus flavus): Often mistaken for limescale, this mould prefers corners and non-porous surfaces.
Safety Precautions
Before you start cleaning, keep these precautions in mind:
- Always wear protective gloves, safety glasses, and a mask to avoid inhaling mould spores.
- Never use bare hands to clean mould—it can cause skin irritation or worse.
- Make sure the bathroom is well ventilated during and after cleaning.
When to Call a Pro?
If the mould covers more than 1m² or keeps coming back, it’s time to consult a mould expert. They can find hidden sources and eliminate the problem for good.
Final Thoughts
Getting rid of mould isn’t glamorous, but it’s worth the effort. With regular cleaning, proper ventilation, and quick action, you can keep your bathroom fresh, clean, and mould free.
Remember, if you need a bigger fix, like redoing your grout or updating your space, give BRB a call. We’re here to help!
