Advance Render Cleaning restores rendered, K-Rend and painted exteriors using low-pressure soft washing — the safe alternative to jet washing. We clear algae, moss, lichen and black staining, then treat the surface so it stays clean for longer. Based in Barry, we cover South Wales, Bristol and the M4 corridor for domestic work, and take on commercial render and stone cleaning across England and Wales.
What is soft washing?
Soft washing is a low-pressure method that uses a biodegradable biocide instead of high-pressure water to remove algae, moss, lichen and black staining from render. Because it kills the growth at the root rather than blasting the surface, the results last far longer than a jet wash — with no risk of cracked or streaked render.
Why not just jet wash render?
High-pressure jet washing can erode, crack and streak render, and it only strips surface growth — which returns within months. Soft washing cleans gently and treats the spores that cause regrowth, so the finish lasts. On K-Rend, silicone and coloured renders especially, jet washing risks permanent damage.
Do you clean K-Rend and coloured render?
Yes. K-Rend, Weber and other silicone and coloured renders are prone to algae and colour change, and are easily damaged by pressure. We use render-specific low-pressure methods and biocides designed for these finishes — cleaning safely, with no aggressive chemicals or high-pressure equipment.
How much does render cleaning cost?
Cost depends on the surface area and access of your property, so every job is quoted individually after a free assessment. Soft washing costs far less than repainting or re-rendering, and lasts longer than a jet wash. Call 01792 823663 for a free, no-obligation quote.
Why choose Advance Render Cleaning?
Over 20 years of exterior cleaning experience, Safe Contractor approved, IPAF accredited and covered by £5m public liability insurance. We work domestic and commercial, always with low-pressure, render-safe methods — never harsh jet washing.
Areas we cover
We cover South Wales, Bristol and the M4 corridor for domestic render cleaning — including Cardiff, Swansea, Newport, Bridgend and the Vale of Glamorgan. See our full coverage area. For larger commercial render cleaning and commercial stone cleaning, we work across England and Wales.
Soft washing is an alternative| to the traditional way of jet cleaning outside} surfaces. It is a gentle and efficient technique that uses low pressure water to disperse over a mixture combination of cleaning solution and water into the a reach and wash soft bristle brush, this gets rid of grime buildup, algae and mildew.
Over time soft washing is now the preferred safer way to wash both commercial and domestic properties without causing any harm to the building facade whilst attaining superior results.
Absolutely Soft Washing as of today is the most safe method for cleaning stone and render. So much so, that once dry the biocide is pet and child friendly.
Advance Render Cleaning use the very latest in Softwashing gear and all of }our employees are proficient} in the safe use of cleaning solutions and best practices for low level and high level cleans.
Pressures washing and Soft washing are effective ways to wash} your property exterior. However there a some things you must consider when choosing which:
- Pressure washing utilizes highly pressurized water which forcefully removes grime and dirt from the surface that it comes into contact withs. This shows immediate results HOWEVER it will pose any significant}property damage over time. For example, cracks in the render once penetrated by water can freeze and expand, thus causing render to full ‘blow’.
- Soft washing uses low pressure which avoids and potential damage, results can take 24 hours, and the biocide continues to penetrate the bacterial growths.
Our professionals know that softwashing long term attains the safer and longer lasting clean result.
Render cleaning FAQs
Is soft washing safe for render?
Yes — it uses low pressure and biodegradable biocide, so it cleans K-Rend, silicone and painted render without the cracking or streaking that high-pressure jet washing can cause.
How long does render cleaning last?
Because soft washing treats the algae and spores at the root, a soft-washed finish typically stays clean for years — far longer than a jet wash, which only removes surface growth.
Do you clean commercial buildings?
Yes. Alongside domestic work in South Wales and Bristol, we take on commercial render and stone cleaning across England and Wales.