PREMIUM STONE CARE PRODUCTS & SUPPLIES About StonePro THE TRUTH: Its difficult to find accurate information on the web nowadays about Premium Stone Care Products & Supplies. Large companies can dominate the Internet with their ability to show up first page after page in web searches. We know it can be frustrating to find what really is going to work for the natural stone, engineered stone, terrazzo or concrete you need to maintain or restore. We manufacture in the state of California. The strictest environmental laws in the country start here. If you were looking for safe, environmentally sustainable products youve come to the right place. For over 25 years our team has included the top trainers in the industry teaching all over the world how to maintain and restore stone and concrete surfaces. If you need help, youve come to the right place. We know that not everyone can specialize in natural stone and that it can be very complicated and specialized. If youre looking for simple processes with great results, youve come to the right place. For over 25 years weve had the unique ability to get immediate feedback from contractors, fabricators, artisans and service technicians all over the US regarding our premium stone care products and their effectiveness. If youre looking for a company that offers a complete line of products to solve any problem and polish any surface, youve come to the right place.