Colonial Cava Colonial Marble and Granite is metro Philadelphia's leading stone fabrication and installation company. We carry over 450 colors of granite, marble, onyx, quartz, quartzite and more with 4,500 slabs to choose from. Kitchen Countertops, Bathroom Vanities, Stone Surfaces, Fireplace Surrounds, Outdoor Kitchens. Lowest Prices, Highest Quality Materials and Professional Installation....