How do you clean K-Rend?

Soft wash only. Apply a sodium-hypochlorite based biocide at low pressure, let it dwell, then rinse with pure water at low pressure. Never use a jet wash, it ruins the silicone finish and opens the surface to water.

Can you clean monocouche render?

Yes, same soft-wash method as K-Rend, with biocide dilution tuned for the through-coloured surface. Pressure washing monocouche pulls colour out and shows immediately.

How much does render cleaning cost?

Most semi-detached homes are £180,£450 depending on render area and access. Detached homes with full wraps run £450,£900.

Will the algae come back?

Most properties stay clean for 3,5 years. Shaded, north-facing or tree-lined walls are quicker to regrow, we offer a top-up biocide spray every 2 years on a maintenance plan.

Will it damage my windows or plants?

No. The biocide is plant-safe at our dilution; window frames and gutters are rinsed clear before we finish.

Is your method safe on painted Regency stucco?

Yes. Painted stucco gets a low-pressure soft wash with a dwell-time treatment, never a pressure lance, so the paint film and the mouldings are left intact.

Do you work on properties in the conservation area?

We do. Ground-based, low-pressure methods mean no fixings, no scaffold and nothing that alters the fabric of the building.

Period-property friendly, gentle methods for Regency render and Victorian terraces.

Render Cleaning in Leamington Spa

Soft-wash K-Rend, monocouche and silicone render cleaning. Never a pressure washer.

Call now

Fully insured, £2m public liability Satisfaction guaranteed 5★ rated on Google Free no-obligation quotes

Render cleaning in Leamington Spa starts from £180 and uses soft-wash methods only, never a pressure washer on modern thin-coat render. We treat algae, red lichen and black streaking on K-Rend, monocouche and silicone systems with a controlled biocide and pure-water rinse. The render goes back to its original colour without etching the surface or damaging the bead lines.

render cleaning in Leamington Spa, what we actually find here

The housing round here. Regency and Victorian stock dominates the centre and Milverton, with painted stucco, sash windows and tall three-storey frontages. Lillington and Whitnash are largely post-war semis and modern estates.

Why Leamington Spa exteriors get dirty. Painted render and soft historic brick do not tolerate high pressure. The Leam valley keeps humidity up, so algae comes back on shaded north elevations faster than it does on open sites.

Access and pricing. Three-storey Regency frontages are worked from the ground with pole-fed systems, so there is no scaffold cost and no ladders leaning on decorative stucco.

Covering CV31, CV32, CV33, including Royal Leamington Spa, Lillington, Whitnash, Milverton.

Why professional render cleaning matters

Modern thin-coat render, K-Rend, Weber, Parex, Wetherby, is sensitive. Pressure washing scours it, opens the surface to water ingress and ruins the finish. The right method is soft wash: a biocide that kills the algae and red lichen at root, followed by a gentle rinse. The render returns to its original colour over a few weeks as rain carries the dead growth away.

K-Rend (silicone)

Monocouche (Parex, Weber)

Silicone & acrylic thin-coat

Traditional sand & cement render

Pebble dash

Our render cleaning process

Honest, step-by-step. No surprises on the day.

1
Identify the render
We check what's been applied, K-Rend silicone behaves differently to monocouche and pebble dash.
2
Pre-treat
Soft-wash biocide at the right dilution for the substrate, never a one-size-fits-all spray.
3
Dwell time
Biocide left to work, typically 20,40 minutes.
4
Pure-water rinse
Low-pressure rinse from the ground via reach pole. No abrasion, no etching.
5
Follow-up
Optional courtesy second visit 2,4 weeks later to check the result has come up evenly.