Render staining is a common problem that can quickly detract from your property’s appearance. Algae, moss, and lichen often cause green or red patches on damp, shaded walls, while black mould can create dark, unsightly stains. In urban areas, pollution and traffic fumes leave a layer of grime and carbon deposits that dull the render’s finish. Rust stains sometimes appear as orange or brown streaks, caused by water running off metal fixtures like window ledges. Efflorescence, a white powdery residue, occurs when salts are drawn to the surface through moisture and is especially common on newer buildings. We fix these issues and help prevent them from recurring by applying a biocide treatment after every job, ensuring your render stays cleaner and protected for longer.