Granite Corp. is a full service Granite, Quartz, and Marble countertop fabricator servicing the Western Suburbs. We offer a large showroom and indoor slab warehouse located in Oswego, IL. We also offer cabinets and full remodeling services. At Granite Corp we believe that your Kitchen is an extension of our showroom. We pride ourselves with providing quality work at a fair price. We only use premium grade stone that has a resin coating to ensure a beautiful stone that will last long into the future.