K-rend Cleaning 

We recommend you clean your K Rend building annually. Where general staining occurs, a warm power wash with a suitable detergent can be used to clean up the K Rend finish.

An annual coat of fungicidal wash can prevent algae from growing on weather prevailing facades, which can be prone to algae by remaining wet over long periods.


Render is used across the UK, especially on large modern buildings, but the manufacturers of render recommend that it needs sprucing up from time to time. Newgents specialise in render cleaning and offer designated render cleaning services for all types of render. If not cleaned regularly the colour of render will appear to fade. This is because render is likely to become infected with algae, mosses, and lichens that stain and ruin the appearance of a home or commercial building. Many people simply do not know an effective way to remove stains from render. Fortunately Softwashing is a safe and eco friendly way of removing organic matter and atmospheric pollution from exterior render.


Finished coloured renders like K-Rend, Moncouche and Weber suffer with algae, bacteria and mildew staining. Weather and pollution can also lead to staining and discolouration. At Newgents we use our low pressure unit to gently clean render surfaces. If render is subjected to a high pressure wash it can cause long term damage, while softwashing will not harm the buildings substrate. A Softwash will will return any render surface cleaned to its natural state, looking freshly painted, thus increasing the buildings kerb appeal and value. We restore these surfaces, cleaning render, to as new conditions safely from the ground in most cases. In fact we can restore any rendered surface including painted render and all pebble & spa dashed finishes. 

It is also very likely that your render will look worse on the north and east sides of the building, where there is less natural sunshine. Having studied the science behind building maintenance, we know that most common atmospheric infections leave swathes of render surfaces with widespread green staining. This can be particularly prevalent on buildings in close proximity to water, as humidity feeds building infections, and the cross contamination caused by spores from nearby trees or other large foliage is a helping factor in this. Left untreated, these stains look tremendously unsightly, and they can detract from the appearance of a home or business. The warmer, more humid weather in the UK means that atmospheric growths are thriving, and are growing on render finished facades harder and faster than ever. Trying to remove these organic growths can prove problematic. High pressure washing can cause real damage, and if incorrectly removed the infection will return too soon. With our softwash treatments we apply softwash products, with steam, to both clean the building and eliminate the infection. This ensures the building looks great after cleaning, and keeps its brilliance. 



The staining and discolouration of render leads many to think that full re-painting is the solution. This is expensive and completely unnecessary. Red stains on render, and green algae on render, can be cleaned entirely. When it is clean, render keeps its colour! Cleaning render is the recommended and more cost effective way to maintain K-Rend surfaces. Until recently however high pressure cleaning was the only option available. Whether using hot or cold water under high pressure, the aggressive technology blasts moisture beneath render’s surface, which means organic growths return shortly after cleaning. In many cases, high pressure cleaning has even blasted render totally off the wall! 

Newgents uses gentle, pH neutral products to kill the infection at root, to clean render and remove stains from render. Our low pressure tan…


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