Professional Softwashing in South Wales
Render, cladding and delicate surfaces can't handle high pressure. Our softwash system uses low pressure and specialist solutions to kill algae, mould and biological growth at the root — giving you longer-lasting results.
Recent Softwashing Work
Why Choose Our Softwashing Service
- Safe for render, K-rend, cladding and painted surfaces
- Kills algae, mould and bacteria at the root — not just the surface
- Results last 3–5x longer than pressure washing alone
- Low pressure means zero risk of surface damage
- Restores the original colour of your render or cladding
- Ideal for UPVC, timber and composite surfaces
- Fully insured with public liability cover
Get a Free Softwashing Quote
Call us directly or send a message — we'll get back to you within 2 hours.
What Is Softwashing and Why Does It Matter?
Softwashing is a specialist exterior cleaning method that uses low-pressure water combined with biodegradable cleaning solutions to safely remove algae, mould, lichen and biological growth from delicate surfaces. Unlike pressure washing, which relies on force to blast dirt off surfaces, softwashing works chemically — killing organisms at their root and preventing regrowth for significantly longer.
This distinction is critical for surfaces like render, K-rend, pebble dash, painted masonry and timber cladding. These materials are easily damaged by high-pressure water, which can strip paint, erode surface coatings, force water behind the render and even crack the finish. Softwashing delivers superior results with zero risk of surface damage — which is why it's the method recommended by most render and cladding manufacturers.
Why South Wales Properties Need Softwashing
South Wales has a climate that's practically designed to encourage biological growth on external surfaces. The combination of high rainfall, mild winters and limited direct sunlight on north and east-facing elevations means algae, mould and lichen colonise rendered walls within just a few years of application. Properties in Newport, Cardiff, Cwmbran and the surrounding valleys are particularly affected.
Green algae streaks on white render are the most common complaint, but red algae, black mould and grey lichen are also widespread. These organisms don't just look unsightly — they trap moisture against the wall surface, which can lead to render failure, cracking and long-term damp problems. Regular softwashing removes these growths and protects your render's integrity.
Surfaces We Softwash
- Render and K-rend — smooth, textured and scraped finishes
- Pebble dash — the loose aggregate surface common on older Welsh homes
- Painted masonry — exterior painted brick and blockwork
- Timber cladding — natural and treated timber exteriors
- Composite cladding — modern composite panel systems
- UPVC — fascias, soffits, bargeboards and cladding panels
- Conservatory frames and roofs — see our dedicated conservatory cleaning service
Softwashing vs Pressure Washing — Which Do I Need?
The choice between softwashing and pressure washing depends entirely on the surface being cleaned. Hard surfaces like concrete, block paving and natural stone are ideal candidates for pressure washing — they can withstand high-pressure water without damage. Softer, coated or delicate surfaces — render, paint, timber, cladding and UPVC — should always be softwashed.
In many cases, a property benefits from both methods on a single visit. For example, we might pressure wash the driveway and patio while softwashing the rendered walls and cleaning the UPVC fascias. This combined approach gives you a complete exterior transformation.
How Long Do Softwash Results Last?
One of the biggest advantages of softwashing is longevity. Because the cleaning solution kills biological growth at its root — rather than just blasting the visible layer off the surface — regrowth takes significantly longer. Most softwashed surfaces stay clean for 2–4 years, compared to 6–12 months for surfaces cleaned with pressure washing alone. Factors that affect longevity include the surface's orientation (north-facing walls regrow faster), proximity to trees and hedgerows, and local humidity levels.
Is Softwashing Safe for Plants and Pets?
We use biodegradable cleaning solutions that break down naturally after application. During the process, we protect nearby plants, lawns and garden features with covers and careful application technique. Pets should be kept indoors during the application phase and for a short period afterwards while surfaces dry. Once dry, treated surfaces are completely safe for people and animals.
Areas We Cover for Softwashing
We provide professional softwashing throughout South Wales, including Newport, Cardiff, Cwmbran, Pontypool, Caerphilly, Chepstow, Caldicot, Magor and Bristol.
How Much Does Softwashing Cost?
Softwashing prices depend on the size of the area, the type of surface, the level of growth and accessibility. A typical semi-detached house with rendered walls costs between £360 and £850 for a full softwash. Detached properties, commercial buildings and multi-storey structures are quoted individually. Request your free softwashing quote or call 07449 493617.
Our Softwashing Process
Assessment
We inspect your surfaces and identify the type and extent of growth.
Application
A biodegradable cleaning solution is applied at low pressure.
Dwell Time
The solution breaks down and kills biological growth over time.
Rinse
Surfaces are gently rinsed, revealing clean, restored finishes.
Softwashing — Frequently Asked Questions
What's the difference between softwashing and pressure washing?
Softwashing uses low pressure with specialist solutions that kill growth at its root — safer for delicate surfaces and longer lasting.
Is softwashing safe for my render?
Absolutely. It's the method recommended by most render manufacturers.
How long do softwash results last?
Typically 2–4 years depending on surface, orientation and conditions.
Is the cleaning solution safe for plants?
We use biodegradable solutions and protect plants during the process.
Can you softwash pebble dash?
Yes — softwashing is the safest and most effective method for pebble dash surfaces.
Do you softwash commercial buildings?
Yes — we clean offices, retail units, schools and large commercial properties.
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