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🧴 Soft Washing

Soft Washing & Render Cleaning

The safe, effective alternative to pressure washing. We use specialised, low-pressure biocidal treatments to kill algae, mould, and bacteria at the root — restoring delicate surfaces without any damage.

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Safe for K-Rend & modern renders Results last up to 3x longer Biodegradable treatments £5M public liability insured

Why High Pressure is the Enemy of Modern Render

Modern through-coloured renders (like K-Rend, Weber, or Monocouche) look fantastic when new, but they are highly porous. Over time, they absorb moisture — creating the perfect breeding ground for red, green, and black algae.

⚠️ Never allow anyone to pressure wash your render. High-pressure water will blast away the protective surface of the render, leaving it permanently scarred and even more susceptible to future algae growth. Soft washing is the only safe approach.

The Soft Washing Solution

Soft washing relies on chemistry rather than pressure. We apply a custom-blended, biodegradable biocide at very low pressure (similar to a garden hose). This treatment penetrates the porous surface, killing the biological growth at the root — not just on the surface.

3x
Longer lasting than pressure washing
0
Surface damage to render
100%
Biodegradable treatments

Benefits of Soft Washing

Zero Surface Damage

Completely safe for delicate surfaces like render, historical brickwork, and timber cladding.

Longer Lasting Results

Kills root spores rather than just blasting off the top layer — surfaces stay cleaner for up to 3x longer.

Instant Transformation

Red and green algae stains disappear rapidly during the treatment process — results visible same day.

Surfaces Perfect for Soft Washing

Through-coloured Render (K-Rend, Weber, etc.)
Painted masonry and pebbledash
UPVC cladding and weatherboarding
Natural slate roofs and delicate tiles
Timber decking and fencing
Indian sandstone and natural stone patios
Soft washing a property in Wokingham — PowerJ Exterior Cleaning low-pressure treatment

Why Choose PowerJ?

  • Certified soft wash technicians
  • Safe for K-Rend & all modern renders
  • Results last up to 3x longer than pressure washing
  • Biodegradable, eco-friendly treatments
  • 31 verified 5-star Google reviews
See It In Action

Watch a Real Soft Wash Job

This is what a professional soft wash looks like on a real property. Low pressure, specialist chemistry, and a result that speaks for itself.

If your render, cladding, or patio looks anything like this before shot, soft washing is almost certainly the right solution.

Frequently Asked Questions

Everything you need to know before booking.

Soft washing is ideal for rendered surfaces (K-Rend, Weber, Monocouche), painted masonry, pebbledash, timber cladding and decking, UPVC fascias and soffits, and conservatories.
Yes — it's the only safe method for coloured render. High-pressure washing strips the protective surface layer and causes irreversible damage. Soft washing uses low-pressure chemistry to kill algae without touching the render surface.
Because soft washing kills biological growth at the root rather than just blasting off the surface layer, results typically last 3–5 times longer than pressure washing — usually 2–4 years.
We use biodegradable, professional-grade biocides. We take precautions to protect plants and garden beds during treatment, and surfaces are safe for pets once dry (typically within a few hours).
Soft washing a typical semi-detached house render costs £150–£350 depending on size and condition. We provide free, no-obligation quotes.
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