Soft Washing Belfast

Diamond Property Maintenance NI provides soft washing across Belfast and Northern Ireland, a low-pressure exterior cleaning method that clears moss, algae, lichen and black staining without the damage high-pressure jetting can cause. It suits the surfaces a pressure washer would harm.

What is soft washing and how is it different from pressure washing? Soft washing applies water at low pressure combined with a professional biocide that kills the organic growth at the root, rather than blasting it off the surface. Pressure washing strips the top layer and leaves the spores behind, so growth returns within months. Soft washing kills it properly, so results typically last 3 to 5 years rather than weeks.

We soft wash roofs in tile, slate and flat finishes, render including K-rend, monocouche and painted render, UPVC fascias, soffits and cladding, wood cladding and fencing, conservatory roofs and delicate stonework. These surfaces are exactly the ones high pressure cracks, gouges or forces water behind, which is why the gentler method matters.

Why does my house go green so quickly in Northern Ireland? Our damp climate is ideal for moss, algae and lichen, so exteriors here green over and stain far faster than in drier regions. Soft washing tackles that directly and, with the biocide continuing to work after we leave, keeps surfaces cleaner for years.

Most jobs take half a day to a full day depending on size and access. Roof soft washing typically ranges from £300 to £800, and render cleaning starts from around £200. We are PASMA and IPAF certified for safe access at height, and every job carries £10M public liability insurance.