Marble polishing is the culmination of years spent working in the stone industry and in particular marble restoration. It is particularly rewarding when it comes to stained or broken pieces that have been damaged over time. Marble has a delicate composition, metals can be quite harsh on their surface. In areas where there are water features such as pools, spas and jacuzzis the harsh chemicals and the water can leave their mark on marble, wearing it down and causing unsightly stains.