I have 3 stone buildings in France. Recently I have been visited by a couple of "traders" offering wall cleaning services. I don't especially trust unsolicited callers but let one of these spray a small part of a wall with a chemical. This stuff was magic. Within 30 seconds the sandstone faces had changed from blackened by age/mould etc to clean and yellow. I didn't take them up on their kind offer but would like to know what chemical they were using so I can do it myself. Anyone out there know?
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!