Why walls go green. Algae and mould thrive on damp, shaded walls, particularly on north-facing sides of a house. The staining usually spreads over time, making a well-kept home look tired.
Why not jet wash? High pressure can scar render, strip paint and force water into cracks. Soft washing uses a cleaning solution to kill growth, then a gentle rinse to carry it away.
What we clean.
- Render cleaning: Silicone, monocouche, coloured and painted render.
- K Rend cleaning: Low pressure to protect the through-coloured finish.
- Fascias and soffits: Often cleaned on the same visit.
- Roofs: The same gentle approach for delicate tiles.
Process. Assess the surface · Agree the method and fixed price · Clean and treat · Tidy up and send your before and after photos.
What to expect. Most organic staining responds well, but growth can return over time, especially on shaded walls. Marks caused by rust, paint or damaged render need a different approach, and we'll tell you before you spend anything.
Better than a replacement? A clean is often a much cheaper way to refresh sound render. If the render is cracked or blown, cladding may be a better choice.
Proof. Swansea projects will be added here as they are completed. Until then, see our work, with each project labelled by place.

