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.

Can you clean a timber-framed property?

Yes, carefully. Exposed timber and lime panels get a very low pressure soft wash. We will always talk you through what we will and will not touch before starting.

Do you need permission in the conservation area?

Cleaning normally does not need consent, but on a listed building we will keep to whatever conditions apply. Send us anything your consent specifies and we will work to it.

Soft-wash methods kind to listed buildings and conservation areas.

Render Cleaning in Stratford-upon-Avon

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

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Render cleaning in Stratford-upon-Avon 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 Stratford-upon-Avon, what we actually find here

The housing round here. Timber-framed and listed buildings in the Old Town, Victorian and Edwardian brick through the centre, and larger detached homes at Tiddington, Shottery and Bishopton.

Why Stratford-upon-Avon exteriors get dirty. River-valley damp keeps algae active on shaded elevations, and the town has a high proportion of historic fabric where high pressure is simply not an option.

Access and pricing. Conservation-area and listed properties are worked from the ground only, with no fixings, no scaffold and nothing that touches the historic fabric.

Covering CV37, including Old Town, Tiddington, Shottery, Bishopton.

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.