Cornerstone Granite

Reviews for Cornerstone Granite highlight consistently positive customer experiences over multiple years. They are frequently recommended for high-quality installations across materials like granite, quartz, and marble, with praise for professionalism, friendly service, and competitive pricing. Most reviews emphasize excellent customer service and timely project completion. However, one review mentions measurement errors and another points to warranty response issues. Many also commend the knowledge and helpfulness of sales representatives and designers.