How to Clean Mould off Walls

How to Clean Mould off Walls

How to Clean Mould off Walls

Mould can take its toll on people, in many different ways, whether the mould is on your walls or on the ceiling, wherever it is, it should be removed as soon as possible

In this blog, we will show you how to clean mould off walls

To prevent mould, fresh air should constantly be introduced into your dwelling daily, as it helps to regulate temperature and reduce condensation. Introducing fresh air can be as simple as having a ventilation routine, or installing extractors or PIV systems. Almost all of this is facilitated by ducting.

Mould/Damp explained

I-Sells is here to provide the answers you need whilst also supplying you with all the information you need to combat mould and have a well-ventilated home.

Mould, otherwise known as damp, is a fungus that grows on wet surfaces. Mould comes in a variety of colours: Black, Green, Brown, Grey and White. It can be difficult to identify mould by colour as it can occur in many shades. Some of the most common mould strains in the home are:

  • Black Mould – Also called Stachybotrys chartarum, Black mould is commonly found in bathrooms and wet rooms but can also occur on cold exterior walls in habitable rooms such as the bedroom or living room.
  • Cladosporium – Commonly found in bathrooms, under sinks, and around faucets but it can grow on surfaces like carpets, furniture, walls, and floors.

Mould reproduces from tiny spores. The spores float through the air and deposit on the surfaces. Under adequate temperature, moisture, and nutrient conditions, the spores can form new mould colonies.

If you have found mould in your home, you need to assess if this is your landlord’s responsibility (for example it could be from a leaking roof that needs repairing). Or if the dampness is caused by improper ventilation. To assess your options, click here.

Symptoms of mould exposure

Symptoms of mould exposure

Mould can severely affect your immune and respiratory system, as the spores are easily breathable and not obvious to see through the human eye. Having a mould allergy, or prolonged exposure to mould will result in you displaying the following symptoms when exposed to mouldy environments.

  • Dry, scaly skin
  • Nasal congestion
  • A cough
  • Watery eyes
  • A weakened immune system

Everyone’s symptoms may vary, but if you’re in an environment with mould and experience these symptoms, try your best to remove the mould as soon as possible.

Can any house develop mould?

Yes, any house, or building has the potential to develop mould if the area is left without any ventilation treatment and sealing of cracks and holes.

You should never overlook the danger of mould. A tiny amount can develop into a large patch if it is not addressed, it will not only damage your home but your health too. Mould-proofing your house should always be done, always remove any mould as soon as you possibly can.

How to clean mould off walls

Cleaning mould from your walls isn’t as simple as a soapy sponge and a quick wipe down, although this may dislodge some mould, it is not a safe or efficient way to remove it. Mould should be removed with cleaners that have anti-fungal properties, to ensure the mould is killed.

At I-Sells, we sell a whole host of mould control products, alongside anti mould paint. We offer the Kair Mould Control Pack, a bundle with the previously mentioned surface cleaner, and two additional 50ml anti-mould additives, saving you 15% more than if you were to buy individually.

What if mould comes back after cleaning?

If mould returns after you have used anti-mould cleaning products, then the likelihood is that you may have a leak that is providing the perfect environment for mould to grow.

Although fixing the leak will stop further mould from developing, until the wall becomes dry, mould will continue to grow. So in this instance you may need to contact professional mould cleaners who can best advise you on how to proceed.

Anti mould paint options

At I-Sells, we are here to help you combat the scourge of mould with the solutions that we offer, here are some options available in our mould control section.

Note: Any instance of cleaning or dealing with mould, one should at the very least, wear a mask and gloves.

Kair Anti Mould Paint 1 Litre White


Kair Anti Mould Paint 1 Litre Magnolia

Kair Anti Mould Paint is an excellent, premium quality, low odour anti mould coating guaranteed to protect against unsightly and unhygienic black mould even when there is persistent condensation.

The unsurpassed performance is achieved by combining modern paint technology with highly advanced, proven biocides. The anti-mould biocide is combined throughout the paint film, which is formulated to impart toughness, elasticity, water resistance and durability to the finish. You’ll find with this product that it is:

  • Easy to use
  • Fast Drying
  • Low Odour
  • Ideal for walls and ceilings
  • Long-lasting protection
  • Matt Finish

For best results, you should wash mouldy surfaces with Kair Anti Mould Surface Cleanser Concentrate. Specifically designed to clean and treat mould growth areas.

Kair Anti-Mould Additive For Emulsion & Gloss Paint – 50ml

Our unique Anti-Mould paint additive contains a fungicidal additive that allows you to secure anti-mould properties to:

  • Emulsion paint
  • Eggshell paint
  • Tile grout
  • Gloss Paint
  • Wallpaper paste
  • Coatings

This means alongside having anti-mould paint in colours, you can also secure your tiling grout making your shower, kitchen or bathroom anti-mould, alongside your wallpaper.

Simply apply one 50ml bottle to any 2.5L bucket of paint that fits within the parameters mentioned above and mix thoroughly.

Should I remove mould from my walls before using anti mould paint?

Should I remove mould from my walls before using anti mould paint?

Yes, you should attempt to remove mould from your walls before applying anti mould paint, however,  depending on the severity of the mould, it should lead you to contact an expert before painting over it with anti-mould paint.

How long does anti mould paint last?

Our Kair anti mould paint lasts for 5 years, providing protection against black mould on walls and ceilings. This doesn’t mean that the paint will peel away in 5 years, or that the mould will instantly appear after the 5-year countdown is over.

The likelihood is, after 5 years the antifungal properties in the paint may have expired. What this means is if your home is still an environment where mould can thrive, it will re-appear after some time, leading you to start the removal and painting process again.

Alternatively, if you used the 5 years to create an inhospitable environment for mould, supplemented with a ventilation routine, the mould may not return.

Natural mould cleaners

Natural remedies are always a good option to test. Distilled white vinegar is known to destroy mould due to its acidic properties and can be helpful in instances of new mould growth, but for extensive and deep mould, stronger products should be used, or experts should intervene.

Secure your home from mould today

Contact I-Sells today

We at I-Sells endeavour to make sure our customers have all the information they need before choosing to invest in our mould solutions.

We hope to have shown you how to clean mould off walls. Be sure to visit our blog page to gain knowledge on the wide array of factors and issues surrounding ventilation, mould, condensation, and much more.

We understand you may have more questions, Do not hesitate to contact us for more information with regard to whatever you need our help with. If you’d like to send us an email, click here. For other contact options, see below:

Call us on 020 8463 9696

Visit us at our showroom:


Monday – Friday: 8:00 am to 5:30 pm

Saturday: 9:00 am to 12:00 pm

Sunday: Closed

15 St John’s Parade

Sidcup, Kent

DA14 6ES

United Kingdom

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