Render, cleanwithout the blast.
Green algae, black run-off and red staining soft washed off render and painted walls, then treated so it stays off. No high pressure on the coating.
Render stains slowly, then all at once. Pressure washing it makes it worse.
Render is a coating, not stone. Blast it with a jet washer and you can strip the colour, open the surface and drive water into it, which is why we clean render by soft washing.
A cleaning solution is applied at very low pressure and left to work on the algae, lichen and black run-off. It breaks the growth down in the texture of the render, then it's rinsed off gently. A biocide finish slows the growth coming back.
It works on most modern and traditional finishes: through-coloured renders like K Rend, silicone render, monocouche and painted masonry. Every wall is assessed first, because old or flaking paint needs a gentler approach.
Soft wash
Cleaning solution at very low pressure, never a jet wash on the coating.
Kills the growth
Algae and lichen broken down in the texture, not just rinsed off the top.
Lasts longer
Biocide finish so the walls stay clean for longer.
BeforeGreen, black or red. All of it.
- Green algae on north-facing and shaded walls
- Black streaks under sills, gutters and copings
- Red and orange staining on through-coloured render
- Lichen and dirt in the texture of the finish
Booking a roof clean? Render is quoted on the same visit, so the whole outside of the house matches.
AfterClean render, coating intact.
High pressure can look like it works on the day, then the wall greens up again fast because the spores are still in the render, and the surface is more open than before. Soft washing kills the growth where it lives and leaves the coating as it was.
Not suitable for
- Render that is cracked, blown or coming away from the wall
- Old paint that is flaking off (we'll tell you before we start)
Drag to compare.
BeforeAfterRender · soft washed and treated (illustration)
How a render clean runs.
- AssessRender type and condition checked, windows, plants and drains protected.
- ApplySoft wash solution applied at very low pressure, wall by wall.
- RinseLoosened growth rinsed off gently from the top down.
- BiocideBiocide finish to slow regrowth, everything below washed down.
Questions, answered.
Will soft washing damage my render?
It's the method recommended for render because there's no high pressure on the coating. We check the render and paint condition before we start.
What types of render do you clean?
Most of them: K Rend and other through-coloured renders, silicone, monocouche and painted render.
Can you clean render and the roof on the same day?
Yes, ask for both in your quote. Doing the roof first means nothing from the roof runs onto clean walls afterwards.
How long does it stay clean?
Much longer than after a pressure wash, because the growth is killed rather than just rinsed. Shade and trees shorten it.
How is it priced?
By wall area, height, access and how heavy the staining is. We quote it remotely like a roof.
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