Render Cleaning Specialists — K-Rend, Monocouche & Pebbledash

Render is one of the most expensive exterior finishes to replace, and it's also one of the easiest to damage with the wrong cleaning method. Jet washing render can crack the surface, drive water behind the finish, and void manufacturer warranties. We use a softwash biocide approach built specifically for render.

What's included:

• Safe removal of algae, black spot staining, and green organic growth
• Softwash biocide treatment — no high-pressure jet washing on the render surface
• Suitable for K-Rend, monocouche render, silicone render, pebbledash, and painted render
• Treatment designed to slow regrowth, not just clean the surface once

Our process:

1. We assess the render type and condition before starting — different renders need different approaches
2. Biocide solution is applied at low pressure to break down algae and staining
3. The render is left to allow the treatment to work into the surface
4. A gentle rinse removes residue without disturbing the render finish

Why this matters: Many render manufacturers explicitly state that pressure washing can invalidate warranties. Our softwash method is chosen specifically to protect your investment, not just clean it once and risk long-term damage.

Areas we cover: Broxbourne, Hoddesdon, Cheshunt, Waltham Cross, Ware, Cuffley, Waltham Abbey, and throughout Hertfordshire, Essex & North London.

FAQ

Can you pressure wash render? We deliberately avoid it — softwashing is the safer, longer-lasting method for all render types.

How long does the treatment last? Most properties stay clean for 12–24 months before regrowth becomes visible, depending on aspect and shading.