Victorian clay tiles stain removal Oil stains from a leaking bottle of delivered shopping left Victorian clay tiles looking stained and dirty at the front of a house in south London. 1 Vegetable oil stains are obvious on the tiles and cannot be removed without special treatment. 2 Another angle of the stains as you approach the house. 3 Unique stain drawing solution is applied to the stains which draws out the contamination. 4 After the stain is removed the tiles are washed and cleaned. The stain is no longer obvious and the general look of the tiles is even. see more repairs