Cornerstone Granite and Tile we have been transforming our customer’s visions into reality and would like to have the opportunity to be the catalyst to do the same for you and your clients. Cornerstone Granite and tile holds the highest standard of quality, value, cleanliness and honesty in our industry. Our commitment to your satisfaction is most important. Cornerstone Granite and tile have been in the stone and tile industry for 50 years, and our attention to detail and quality is what sets us apart from others. At Cornerstone granite and tile we fabricate granite, quartz, and marble at our facility. Cornerstone Granite and tile also offer installation services on the site of tile, stone, porcelain, glass and rock. On decks, showers, flooring, tops, spas, fountains, and fireplaces. We have been serving Eastern Washington and the surrounding region for 13 years.