At Softwashing UK we specialise in removing algae from and render and cleaning off the green and red stains that so often appear on render substrates. Render is rightfully a very popular building material, used to finish, and insulate, exterior walls. It is very durable, usually with a guarantee of 25 years plus, and it is weather resistant. It also maintains its colour and is through coloured, so after several years it can look as fresh as the day it was applied. There are many popular brands, such as K-Rend, Weber, Sto, and more. Like any building material it does require maintenance from time to time. Various factors can cause the render to blow and to crack. After a period of time organic growth will take hold of render too, and this in its early stages is what leads to the red and green staining. The growth of render can be effected by various conditions. Firstly proximity to the coast, especially the western coast of the UK. Salt and minerals in the coastal air feeds organic growth, and red algae is carried in on winds bearing East descending on the western coast of Britain. Moisture and humidity are also an issue, as organic growth feeds off water. Areas with higher rainfall tend to have more prevalence of organic growth. Poorly constructed buildings, or overhangs, have a real impact to, when water run-off is forced onto the wall. Plant life and vegetation also send spores that trigger growth on render.
Algae is on the oldest organisms on the planet and usually the first organic growth to become visible on render walls. it is feeding of minerals and moisture in and on the substrate and once this happens specialist treatment will be required to remove it. Off the shelf biocides from garden centres will not be strong enough, and power washing, even if it seems to remove stains, will most likely damage your render permanently.
At Softwashing UK we have made it our business to remove the red and green stains caused by organic growth from render. Contact us today for a discussion or quotation.
Render is a popular exterior finish across the UK for its smooth appearance and weather resistance. However, over time, it can become stained and discoloured by algae, moss, lichen, and other organic contaminants. That’s where Softwashing UK comes in.
We offer professional algae removal from render using specialist soft washing technology — a safer, longer-lasting alternative to pressure washing.
Specialised Soft Wash Technology
Unlike high-pressure cleaning, which can damage render surfaces and lead to cracking or erosion, our low-pressure soft wash system uses biodegradable cleaning solutions that penetrate deep into the render. This method safely kills algae and organic growth at the root, without compromising the render’s integrity.
Longer-Lasting Results
Our softwashing process doesn’t just clean your render — it treats the problem at its source by eliminating spores and bacteria. This ensures your walls stay clean for longer, reducing the frequency of future treatments.
Moss, Lichen & Algae Control
We don’t just remove surface growth — we prevent it from coming back. Our biocidal softwash treatment destroys moss, algae, and lichen at the root, helping to keep your render looking its best and free of green staining.
Gentle on Render, Tough on Contamination
Render can be easily damaged by jet washing. Our soft wash technique is gentle enough for all types of render — including K-Rend, monocouche, and silicone-based systems — while being tough on stains, organic build-up, and pollutants.
Fully Trained & Insured Technicians
With Softwashing UK, you’re in expert hands. Our technicians are fully trained, insured, and experienced in using the correct techniques for render cleaning. We prioritise safety, precision, and care on every job.
Eco-Friendly & Safe for Families and Pets
Our cleaning solutions are pH neutral, fully biodegradable, and environmentally conscious. Safe for pets, children, and nearby plants when used properly, our methods are ideal for homes where safety and sustainability matter.
Exceptional Customer Service
We take pride in providing a professional, hassle-free experience from start to finish. From your initial enquiry through to completion, we ensure clear communication, reliability, and high-quality results.
Restore & Protect Your Property’s Appearance
Algae removal not only improves your home’s aesthetic but also helps protect the underlying render from deterioration. Our service restores colour, boosts curb appeal, and helps extend the lifespan of your property’s exterior.
Head Office, Kane Close,
Cardiff,
South Wales
CF14 5LG
United Kingdom
enquiries@softwashinguk.co.uk
