As professional building cleaners, whether it be brick cleaning or stone cleaning, Basildon Stone has been working with Doff cleaning systems for many years. DOFF is a perfect solution for buildings suffering from all kinds of dirt and grime, including algae and moss growth, fungi, and other biological matter. The system involves using superheated steam and superheated water to kill off spores and ensure there is no regrowth, meaning your masonry and brickwork will look perfect for many years to come. DOFF is a steam based stone cleaning system. It’s unlike any other steam system and can achieve temperatures of up to 150°C at the nozzle end – making it a ‘superheated water system’. The operator is able to vary the temperature and pressure to remove many different types of paint and biological matter.