How to get rid of black mould in a shower — 5 natural ways to kill the spores and remove it from your shower tray, screen and sealant

You should never ignore black mould in your shower

Large bathroom area with pink walls, white marble tiles, a freestanding bath and a large walk-in shower with a black framed shower screen
(Image credit: Future/Lizzie Orme)

Most people want the place where they clean themselves to be clean, too. However, as excess moisture and warm temperatures in a bathroom make it a breeding ground for mould, knowing how to get rid of black mould in a shower is key.

This fungus is quick to grow but incredibly difficult to get rid of, and it thrives in showers - from the nooks and crannies of the shower screen to the edges of the shower tray and on the sealant around your bath. And while it’s possible to clean mould off walls, these smaller areas of black mould are harder to tackle.

As well as being an eyesore, black mould can cause health problems and wreak havoc on those with breathing difficulties. That’s why we’ve put together this guide on how to get rid of mould in a shower, so you can prevent this build-up before it becomes dangerous. Just remember to wear protective gloves, masks, and glasses when cleaning black mould to keep yourself and your family safe.

1. Use white vinegar

Glass bottle full of white vinegar and a label on the front, next to a pyrex jug and a bottle of essential oils

(Image credit: Future PLC)

You should never underestimate the power of cleaning with vinegar. It’s one of the best cleaning products in your caddy and can be used throughout your whole house - including in your shower. It’s particularly impressive at cleaning mould off your shower curtain.

However, you can also use white vinegar elsewhere in your shower - whether that be the tile surround, the shower screen, or the sealant around your bath or shower tray.

Laura Harnett, founder of eco cleaning brand, Seep, advises, ‘The best thing to remove black mould is white vinegar as it actually kills the mould spores, unlike bleach. Spray white vinegar onto the black mould using a refillable spray bottle. Leave it to soak in and then simply wipe away with something slightly abrasive.’

She adds, ‘If the mould is especially bad, then it may need a gentle scrub using an old toothbrush. Work it in circular movements to remove it. When the mould is gone, spray the area with more white vinegar and leave it to dry. This will ensure that the spores have been killed and it won’t come back.’

Of course, if the mould still remains or the toothbrush irritates any old sealant or grout, it may be that you need to re-seal your bathtub or re-grout your tiles.

2. Use bicarbonate of soda

Bicarbonate of soda beside measuring spoon and jug

(Image credit: Future PLC)

Bicarbonate of soda is one of the best products to get rid of mould on walls, but it’s also highly effective in getting rid of black mould in a shower. That’s because this alkali has a naturally high pH, which kills mould and makes the environment inhospitable for mould to grow back.

It’s extremely easy to use, too. For bicarbonate of soda to get rid of black mould in a shower (and in the bathroom as a whole), you just need to make a paste using equal parts baking soda and water and then apply that paste in the problem areas. If you can, leave it to work its magic for 30 minutes to one hour.

Although you might be able to just wipe off the black mould after that, it’s best to use a scrubbing brush like a sonic scrubber (available on Amazon) to get into every nook and cranny around your shower screen, head, and bath or shower tray.

3. Use tea tree oil

Bathroom with pink walls and white tiles, a walk-in shower on the left and a double sink vanity with mirror above on the right

(Image credit: Future/Colin Poole)

Most people have essential oils to add to their diffusers or baths, but few realise how effective essential oils are for cleaning. For example, this Tisserand Lemon Organic Essential Oil from Amazon can be used as a multi-purpose disinfectant, cleaning everything from your kitchen to your bathroom.

But if you specifically want to target black mould in a shower, you need to use tea tree oil. This particular essential oil is a natural fungicide that can eliminate mould in no time and can be mixed with equal parts of water in a spray bottle to make a cleaning solution.

Then, you can apply it to the black mould in your shower, let it soak into the mould for around an hour, and wipe it down with a clean, damp cloth. A major perk is that it’ll also make your bathroom smell fresh and fragrant.

4. Use targeted black mould products

White bathroom with white painted walls and white chevron tiles in the walk-in shower

(Image credit: Future/Dan Duchars)

As black mould is a common problem across the UK, it’s not hard to find targeted mould products that all claim to get the job done. And while many of them are chemical-based mould removers, unlike the natural mould removers above, sometimes you do need that extra oompf to really get rid of black mould in a shower. After all, there’s a big difference between mould and condensation.

While we can’t say that we’ve tested all of the black mould removers on the market today, Ideal Home’s News Writer, Kezia Reynolds, swears by the Skylarlife Home Mould & Mildew Stain Remover from Amazon. She even reviewed the Skylarlife mould stain remover in her own bathroom, which was previously full of black mould.

She says, ‘My rental bathroom is unfortunately not very well ventilated, which means I often have problems with mould - especially my shower grout. I recently saw mould gels going viral on social media and decided to try out the Skylarlife Home Mould & Mildew Stain Remover after spotting it on Amazon. I left in on my mould grout for six hours and wiped it away - it didn't remove all the mould, but it's the most success I've had.'

Of course, you need to be careful when using these targeted black mould products and always ensure you wear protective gear and keep a window or door open.

5. Take steps to prevent future growth

a white shower tray next to a tiled bathroom floor

(Image credit: Future Plc/Colin Poole)

While the above steps will help to get rid of black mould in a shower, many of them won’t stop mould from coming back. That’s why you also need to take steps to prevent future growth - and this is easily done with a few lifestyle changes and purchases.

As mould thrives in damp environments, your first step is to reduce the moisture. In many cases, this could be as simple as opening the window or using an extractor fan. Gervaise Ovin, a professional cleaner at Wecasa, advises, ‘Increase ventilation in the shower by opening a window or using an exhaust fan. This will help to keep the air moving and reduce moisture, which will make it less hospitable for mould growth.’ However, we know that this isn’t always possible or effective enough.

And while the best dehumidifiers typically work wonders at sucking up this excess moisture, most experts would agree that it’s not safe to use a dehumidifier in the bathroom. However, you can use a non-electric dehumidifier or moisture absorber instead

Ideal Home’s Managing Editor, Thea Babington-Sitt, uses (and loves) the Absodry Duo Family Moisture Absorber from Dunelm as it not only keeps her bathroom mould-free but also looks good in the process. Plus, it comes in a variety of sizes to suit each bathroom’s needs.

If you’re looking for something a bit cheaper and more visually appealing, you could also make the most of the bathroom plants that absorb moisture and allow them to do the hard work for you. But whatever option you choose, it’s important to maintain a strict bathroom cleaning schedule and wipe down your shower after use to minimise excess or standing water.

FAQs

Is black mould in shower harmful?

Yes, it can be. Black mould is a dangerous fungus that releases spores into the air. Breathing in these spores can lead to breathing difficulties and even lead to allergies. Because of this, it’s best to get rid of black mould in a shower as soon as you can to prevent any further spread.

Is it safe to clean black mould yourself?

Although it’s fairly safe to clean black mould yourself, you still need to be careful, as cleaning black mould can irritate the spores and lead to the spread of the fungus. Because of this, you should always wear protective gear, such as gloves, glasses, and a face mask.

However, if you have any existing breathing difficulties like asthma, it might be worth paying a professional to remove the black mould for you to limit your contact with it.

Well, there you have it! That’s how to get rid of black mould in a shower.

Lauren Bradbury
Contributor

Lauren Bradbury is a freelance writer and major homes enthusiast. She graduated with a Bachelor’s degree in English and Creative Writing from the University of Chichester in 2016, before dipping her toe into the world of content writing. After years of agency work, writing everything from real-life stories to holiday round-ups, she decided to take the plunge and become a full-time freelancer in the online magazine world. Since then, she has become a regular contributor for Real Homes and Ideal Home, and become even more obsessed with everything interior and garden related. As a result, she’s in the process of transforming her old Victorian terraced house into an eclectic and modern home that hits visitors with personality as soon as they walk through the door.