Granite window sills. Granite is a natural raw material that is widely used in construction. Granite is very elegant and is associated with luxury and prestige. It is used to create decorations and finishes both inside and outside the building. Our product range includes high-quality granite window sills, which are distinguished by their high abrasion resistance, resistance to adverse external factors and long service life. Granite window sills are a very comfortable and functional solution, they are easy to use and easy to keep clean. Granite window sills are an investment that will pay off in terms of excellent quality.