Colonial Marble & Granite is a family owned business providing design and fabrication of stone products for residential and c ... ommercial properties. Founded in 2008 our mission is to offer the greatest selection of materials at the lowest prices available with the highest quality installation. With 4 locations in King of Prussia PA, Philadelphia PA, New Castle Delaware, New Cumberland PA - Colonial Marble & Granite installs custom stone, marble, granite, quartz, onyx and more - countertops, vanities, custom tables, surfaces for residential and commercial customers. With over 5,000 stone slabs plus 1000's of floor, wall and backsplash options we can supply and install kitchens, baths, outdoor kitchens, offices, restaurants and more. read more