Soft washing is a cleaning method using low pressure and specialized environmentally friendly biosides to safely remove mildew, bacteria, algae,moss and other organic stains from roofs,Ll types of render and other building exteriors like metal cladding, paths,patios and tarmac drives. This works fantastic for pebble dash and K-rend exteriors as it will not cause any damage. We also use it to good effect on listed buildings and Headstones, especially Celtic Crosses as it will not damage the engravings. Some surfaces such as concrete drives will require some additional pressure to get the maximum cleaning effect. Should this be the case we use a special rotary surface cleaner that does not damage the surface.