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Cleaning Mould on Roller Blinds: Why Timely Action is Crucial.

Updated: Sep 5, 2023

Roller blinds are a popular choice for window coverings, providing both functionality and aesthetics to any room. However, as with any household item, roller blinds can encounter problems over time.

One of the most common and persistent issues is mould growth on the fabric. Mould not only poses health risks but can also lead to permanent stains if left untreated. In this blog post, we will delve into the importance of removing mould before it damages your roller blinds irreversibly. Additionally, we will explore the science behind mould staining, the limitations of using bleach as a solution, and the benefits of regular cleaning.

Roller Blind cleaning - remove mould
Mouldy Sunscreen Roller Blind

The Dangers of Mould on Roller Blinds

Mould is a type of fungus that thrives in warm, humid environments, making Roller blinds an ideal breeding ground, especially in moisture-prone areas like bathrooms and south facing rooms. It's presence can lead to respiratory problems, allergies, and other health issues, making it essential to address mould problems promptly.

Additionally, by design, Sunscreen Rollers stay fully down most of the time, preventing windows from drying out and trapping moisture.

Understanding Mould Staining

Mould staining occurs when the mould's spores penetrate the Roller blinds fabric. As the mould feeds on organic matter present on the blinds' surface, it releases pigments and enzymes that adhere to the fabric, causing visible discolouration and stains.

These stains can become ingrained in the fabric, making them incredibly difficult to remove with conventional cleaning methods. Typically, we have noticed that if mould has been present on the blinds for 12 months or more, it's almost impossible to fully remove stains.

cleaning mould from roller blinds

The Limitations of Bleach on Blind Cleaning

Many homeowners (and unfortunately even professional blind cleaning businesses) may be tempted to reach for bleach as a remedy for mould stains due to its reputation as a powerful cleaning agent.

However, using bleach on Roller blinds can cause more harm than good. While bleach can kill surface mould, it cannot penetrate the fabric deeply enough to eliminate all the mould spores. Furthermore, bleach may weaken the fabric's fibres and alter its colour, exacerbating the staining issue. Ultimately, bleach provides only a temporary fix and fails to address the root of the problem.

Tips for Maintaining Roller Sunscreen Blinds

  1. Daily Lifting: To minimise moisture build-up, make it a habit to raise the Sunscreen Roller Blind about 30cm (one foot) each morning. This simple step will allow the windows to dry, reducing the chances of mould formation.

  2. Regular Dusting: Dust off your roller blinds daily with a soft cloth or use a vacuum cleaner with a brush attachment to remove accumulated dust and debris.

  3. Spot Cleaning: If you notice any mould spots starting to form on your blinds, take immediate action. Prepare a mild cleaning solution by mixing a small amount of mild detergent with warm water. Dampen a soft cloth in the solution and gently wipe the affected areas. Remember to spot test a hidden area before applying the solution to the entire blind.

  4. Proper Ventilation: Ensure that your rooms are well-ventilated, especially in areas prone to higher humidity levels, to prevent moisture from settling on the blinds.

Why Choose Professional Blind Cleaning?

While regular maintenance is crucial, professional cleaning can be a game-changer for maintaining the longevity and appearance of your Roller blinds. Reputable cleaning companies, such as Sunblest Blinds, provide specialised services that effectively remove mould stains and restore your blinds to their original beauty.

Sunblest Blinds - Professional Blind Cleaning

The Sunblest Blinds Difference: Safe and Gentle Blind Cleaning

When it comes to professional blind cleaning, not all companies are created equal. Unlike some professional blind cleaning businesses that resort to using harsh bleach-based solutions, Sunblest Blinds takes pride in their commitment to customer safety and preserving the integrity of blind fabrics.

Instead of harsh chemicals, they opt for oxygen-based cleansers that effectively tackle mould stains while being gentle and safe on the blinds. This eco-friendly approach ensures that your roller sunscreen blinds not only look pristine but also retain their original beauty and texture.


Day-night roller blinds, with their combination of sunscreen and blockout fabrics, offer a stylish and functional window covering solution. However, it's essential to understand the science behind mould formation on Roller blinds and take proactive steps to maintain them properly.

By following regular maintenance practices and lifting the blinds each morning to allow the windows to dry, you can prevent moisture build-up and mould growth. And, if you find yourself facing persistent mould problems, don't hesitate to seek professional cleaning assistance from experts like Sunblest Blinds.

Embrace the light with confidence and enjoy your stunning roller sunscreen blinds worry-free!

If you have any questions about blind cleaning or repairs, don't hesitate to contact the team at Sunblest Blinds in Western Sydney

We're always happy to help.

Like to visit us instead? Come and see us at our Mt Druitt factory - by appointment only.

35/29 Sunblest Cres, Mount Druitt NSW 2770, Australia


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