Your rendered walls cleaned of moss, lichen and stains, and restored to their former colour — guaranteed

Say goodbye to render filled with stains and algae. Our specialist cleaning system removes all traces of dirt and moss growth, leaving the natural colour to shine through

Book your FREE no-obligation render cleaning estimate today by calling Cornish Window Cleaning on

01208 75476

Look at our results

render cleaning

Before and after: all traces of stains removed

If the render on your home is more than a few years old, it’s probably beginning to show its age.

Brown stains where the rainwater has run down the surface. The growth of algae and moss creating dark patches. Overall, your home has started to look shabby and unattractive.

A common way to bring the render back to its former colour is to use “power washing” (which uses the force of water to remove the stains).

But high-pressure cleaning doesn’t cure the underlying problem — the bacterial infection. This means the moss and lichen will start to grow again almost immediately.

On top of all this, using power washing on some type of render invalidates the guarantee, which means you’re liable for any faults that occur later in the render’s surface.

You may have to replace the render completely, with all the huge costs associated with it.

The Solution

The solution is to use the “Softwash” system, a gentle yet highly-effective cleaning technique that quickly removes moss and lichen from your rendered walls whatever the surface and no matter how heavy the soiling and discolouration.

Weather stains disappear too, bringing your walls back to the original vibrant colour.

Softwashing works on all finished coloured renders, including those from K-Rend, Monocouche, and Weber

Softwashing not only cleans your rendered walls completely in one application and allows the original surface colours to shine through — it also contains a bacteriacide which kills the spores so that the moss and lichen which causes the stains is kept at bay for much longer.

Full Service

Before applying the Softwash solution, we remove all surface mosses and lichens to make sure the solution touches every part of the surface.

This makes sure the solution removes every stain and all traces of moss.

We also take all necessary precautions and measures to protect the surrounding area when we apply the Softwash solution.

This includes making sure all plants and greenery are protected from the solution so there is absolutely no damage to your garden.

Fully trained

Every member of our cleaning staff is fully-trained in how to use the equipment and how to follow all relevant Health and Safety rules.

This means you don’t have to worry about incompetent cleaning staff damaging your property, and you’ll know that the cleaning is being carried out in a safe and effective manner.

We also hold £5 million of public liability insurance.

Staff you can trust

All members of staff have undergone a Disclosure and Barring Service (DBS) check to make sure they have no criminal convictions and can be fully trusted with access to your property, giving you total peace of mind at all times.

Fully guaranteed

You also receive a rock-solid guarantee on every single cleaning job that we will return and put right anything you’re not happy with — without quibble or argument.

But don’t take our word for it. Just look at what some of our many satisfied clients have said about us on our "Success Stories" page.

We carry out render cleaning work in Bodmin, Truro, St Austell, Newquay, Plymouth and throughout all areas of Cornwall

Book your free no-obligation render cleaning survey today by calling us on the number above.

Alternatively, enter your details below.

We look forward to serving you.

James Marks and Graham Hichens
Cornish Window Cleaning

Contact us for a no-obligation quote

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Window Cleaning, Gutter Cleaning, Roof Cleaning, Render Cleaning in Bodmin, St Austell, Truro, Newquay, Plymouth and throughout Cornwall