Granite Expo is one of the leading granite and marble fabricators and installers serving the Washington DC Metropolitan area. Sixteen plus years of experience in the natural stone industry is combined under one roof in Sterling, Virginia. Weâ?Tve been located at this location for about 3 years. This location addresses both commercial and residential projects. Call us and ask about our lower price. We specializing in Granite, Marble, Quartz, Sile Stone, Cabinet, Tile, Fire Place, Complete Bathroom Remodeling and many more.