The DOFF cleaning system is used to clean driveways and patios to remove dirt and grime plus build ups of algae, moss and lichen. It is environmentally friendly, as it uses steam rather than very high pressure water jets and will kill all mould growth without the use of biocides or chemicals, meaning no harmful chemical can be accidentally washed into the water courses. We can also pre-treat stains such as oil or grease marks before cleaning and apply sealers after cleaning to further protect the surface.
Due to the high temperatures involved, DOFF is unsuitable for use on tarmac driveways, however.