How to Clean Mould Off Walls

Mould on walls is a common and unpleasant problem in many homes. It not only looks unsightly but can also pose potential health risks, especially for those with allergies or respiratory issues.

Mould thrives in damp, humid conditions with poor airflow, making bathrooms, kitchens, and basements particularly vulnerable.

This guide will walk you through various methods for cleaning mould off walls, from common household remedies to specialised products. We'll outline the pros and cons of each approach and show you how to get a lasting clean that prevents mould from coming back.

The DIY Approach: Household Remedies

For small, surface-level patches of mould, many people first turn to household items. These methods can be effective for a quick, superficial clean but often don't provide a long-term solution.

Bleach

A solution of bleach and water (typically one part bleach to four parts water) is a common choice for white walls. Bleach is a powerful disinfectant that kills mould spores.

Pros: Highly effective at killing surface mould.

Cons: Bleach can be a harsh chemical that may damage coloured paint, stain fabrics, and release strong fumes.

White Vinegar

Undiluted white vinegar can be sprayed directly onto the mouldy area.

Pros: A natural, non-toxic alternative to bleach that is effective at killing a variety of mould species.

Cons: It can have a strong, lingering smell and may not be powerful enough for severe or ingrained mould.

Baking Soda & Soap

A mix of baking soda, water, and a mild detergent can be used to scrub the mould away.

Pros: A gentle, non-toxic method that can be used on most surfaces.

Cons: This is a physical cleaning method that requires a lot of scrubbing and doesn't provide any long-term protection against regrowth.

The Professional Approach: Specialised Cleaners

For a more thorough and lasting clean, a professional-grade product is the most reliable choice. These cleaners are formulated to do more than just clean the surface, they often work to prevent the mould from returning.

This is where GK Mould & Mildew Cleaner offers a superior solution. Unlike many other products on the market, it's a powerful yet gentle cleaner that's specifically designed to tackle mould and mildew on a variety of surfaces.

GK Mould & Mildew Cleaner should only be used on hard, colourfast surfaces. Check the surface’s compatibility before use.

Why GK Mould & Mildew Cleaner is the ideal choice:

Fast-Acting Formula: Achieves quick and efficient cleaning results, saving you time and effort.

Biodegradable & Low-Odour: An environmentally friendly solution that ensures minimal impact on ecosystems and has a barely perceptible odour for a pleasant user experience.

Bleach & Acid-Free: Formulated without harsh chemicals, it's safer for surfaces and has a virtually neutral pH level of 8, enhancing surface compatibility and safety.

100% Water Soluble: The liquid formula fully dissolves in water, ensuring easy application, effective cleaning, and a simple, residue-free rinse.

A Step-by-Step Guide with GK Mould & Mildew Cleaner

Using GK Mould & Mildew Cleaner is a straightforward process that delivers professional results:

Prepare the Surface: First, ensure the area is dry and free of any loose dirt.

Test: Always test the product on a small, inconspicuous area to check for compatibility and the finished result.

Apply Generously: Spray a generous coat onto the affected area from about 15-20cm away.

Agitate & Rinse: Once the product has completely dried, gently agitate the surface with a soft brush or pad. Then, wipe off the residue with a damp cloth and rinse thoroughly with clean water. For stubborn stains, you may need to repeat this process.

Prime & Paint: After you have cleaned the mould, you should apply a mould-resistant primer and then, if required, repaint the area as cleaning methods could discolour or fade the original paint.

Safety First: When applying any cleaner, ensure the area is well-ventilated and wear appropriate Personal Protective Equipment (PPE), including protective gloves and eye protection.

Preventing Mould from Coming Back

The best way to deal with mould is to stop it from growing in the first place. Once you have cleaned your walls, take these steps to prevent its return:

Improve Ventilation: Ensure good airflow in mould-prone areas like bathrooms and kitchens. Open windows after showers and use extractor fans.

Control Moisture: Fix any leaks promptly. Use a dehumidifier if you have high humidity levels, especially in basements.

Insulate Cold Surfaces: Insulating cold walls can help prevent condensation, which is a major cause of mould.

Keep Surfaces Dry: After cleaning, ensure the area is thoroughly dry, and regularly wipe away any condensation on windows or walls.

Conclusion

Cleaning mould off walls is easy with a specialist product such as GK Mould & Mildew Cleaner, but for lasting results you shouldn’t stop there.

By combining an effective cleaning solution with these preventative measures, you can ensure your walls stay pristine and mould-free for years to come.