Cleaning rendered walls is easier when a render stain remover like our RenderKleen eco-friendly chemical gets into action and transforms the walls of your building. This ready-to-use chemical is an eco-friendly all-natural detergent that was designed for removing algae on harbour quaysides amid concerns around chemical discharges into water courses – it’s available in 5-litre or 20-litre containers.

Render Stain Remover

RenderKleen render stain remover is becoming more common in maintenance and the building trade and it is a highly effective and safe product for cleaning rendered walls. It is a certified food-safe product so will cause no harm to us or our pets and the airborne spray and run-off is harmless to humans or aquatic life.

For larger applications cleaning contractors often choose the super concentrated version packed in 10-litre jerrycans – see on this link.

How Does The Render Stain Remover Work?

This detergent is different from most conventional cleaning chemicals in utilising nano-energy packages that penetrate deeply and lift off the algae and dirt leaving a clean surface that also lasts for longer than when treated with sodium hypochlorite (bleach) or a biocide-based soft wash render treatments.

RenderKleen 20 Litre – £80.00 + VAT Each – Accepts Credit + Debit Cards

You could think of these nano-energy packages as being like piranhas in the Amazon that are just milling around and waiting to attack and tear dirt away like piranhas would feed by tearing meat off the bones of their prey. The key point is that the soiling and stains are dislodged instead of being killed as a biocide does.

Download the technical and safety data sheet here.

Safe And Stable

Non-hazardous, non-toxic, and having zero biocides, acids, or bleach, we believe this render stain remover is one of the best-value render cleaner mixes out there and both more sustainable and much superior in results to cleaning render with bleach.

Render Stain Remover

Supplied as ready-to-use in 5-litre or 20-litre containers to buy online – local councils are delighted to hear of steps taken to lower any chemical risks for external cleaning and this can be useful in winning business for contractors.

Please get in touch with us to discuss your needs further or to request SDS sheets at:

Acute Build Clean | 74 Bo’ness Road | Grangemouth | FK3 9BL

Tel: 01324 309100 | Email:

London Office | 47 Gee Street | Clerkenwell | London | EC1V 3RS

Tel: 0208 088 3703 | Email: