Vertical blinds

How to Clean Mould Off Vertical Blinds

Vertical blindsVertical blinds provide privacy in the home when required, and allow homeowners to control the amount of natural sunlight entering a room. Vertical blinds look pretty and attractive when first fitted, but they are often prone to mould and unsightly mildew stains when exposed to heat and moisture.

Vertical blinds can be notoriously difficult to clean, and many people take down their fabric blinds and take them to a dry cleaner. However, it is possible to get them looking like new again at home, whether you have wooden, plastic or fabric blinds.

  1. Loosen dirt
    The first step for removing mould is to use a thick duster to remove any loose dirt. You may prefer to open a window and wear a dust mask to prevent breathing in any airborne mould whilst performing this task.
  2. Remove dirt with a vacuum cleaner
    Next, use the upholstery attachment on your vacuum cleaner to remove mould and dirt from hard to reach areas.
  3. Clean with water and detergent
    Mould can only be fully removed from a blind by cleaning with water mixed with detergent or a natural cleaning product. There are several ways to do this, which are explained below.

Machine Washing

Many fabric vertical blinds can be machine washed. Always check the washing instructions on the label first, and it’s a good idea to use a gentle wash cycle at a low temperature, such as your machine’s wool or delicates wash.

Machine washing your blind exposes the material to snagging and fraying, so if you do decide to wash your vertical blind in the washing machine, it’s best to roll the blind louvers together, making sure there are no creases and the edges are in line, then tie the roll together and place inside a pillowcase before washing. It’s also a good idea to miss out the final spin of the washing cycle.

Manual Cleaning

Many people prefer to wash their blinds by hand, and even though this may take longer, it’s less likely to damage the blind. You can wipe each slat individually with a cloth soaked in a mixture of water and cleaning detergent, or remove the whole blind and either clean outside, or soak for a few hours in a bath filled with diluted cleaning detergent and warm water. It’s worth noting that even washing by hand can damage and shrink blind fabric if the water is too hot.


Air drying is always the safest method for drying a blind, preferably with the blind laid out flat. Never attempt to tumble dry your blind.

Cleaning Products

In the past, it was recommended that bleach was used to remove mould from blinds, and there are many bleach-based products that can be used for this purpose. However, many of us now prefer more natural cleaning solutions that are safer and kinder to the environment.

White vinegar is one of the cheapest natural products that will remove mould. Simply spray undiluted onto blinds, leave for an hour then scrub and rinse with water.

Lemon is also extremely effective for removing mildew. This is a particularly useful method if cleaning your blinds outdoors, as the lemon juice works with sunlight to kill mildew spores. Simply spray, leave for an hour and remove with a damp cloth.

Several essential oils are also excellent for removing mould and mildew. Tea tree, clove and cinnamon essential oils are all naturally helpful at cleaning and inhibiting further mould growth. Mix a few drops of your chosen oils with water in a spray bottle, spray directly onto the mould or mildew and remove with a damp cloth.


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