Cornerstone Granite

Customer reviews indicate a generally positive reputation for Cornerstone Granite. The company is frequently mentioned in renovation company reviews, often highly rated and recommended for the quality of their products and installation services, customer service, and competitive pricing. Materials installed include quartz, granite, marble, solid wood, and quartz countertops. While positive experiences are common, some reviews mention common issues like initial measurement errors or installation flaws, although repeat visits for specific problems (like a loose sink) are noted with generally positive initial installation experiences. Warranties, typically 5 years, are mentioned, but one instance required service, and another reported recurring warranty service issues. Care and maintenance instructions vary by material.