Douro Granite & Marble, LLC is a manufacturer of a variety of granite products and provides various related products. Located in Bethel, Conn., the firm specializes in providing an assortment of natural, glass and ceramic tiles in various colors. It provides Custom fabrication of natural stone for kitchen counters, vanities and fireplaces, to name a few. Douro Granite & Marble, LLC also offers an array of tiles that include ceramic, porcelain, mosaic, glass and metal tiles. The firm has association with Marble Institute of America and National Tile Contractors Association (NTCA).