Keystone Marble and Granite is a leading supplier of marble and granite, serving residential and commercial clients in Delaware, Pennsylvania, and Ohio. With 25 years of combined experience among their fabricators and installers, they offer a wide selection of stone slabs imported from around the world. Keystone is an accredited distributor of popular engineered stone brands, providing customers with competitive pricing and a one-stop shopping experience. Reviews highlight the exceptional customer service at Keystone, with staff described as genuine, helpful, and courteous. Customers appreciate the easy-to-navigate showroom and the prompt turnaround time for installations. Many have praised the knowledgeable staff for their assistance in selecting the perfect materials without high-pressure sales tactics. The installation crew is noted for their precision and friendliness. Clients have enjoyed a variety of projects, from kitchen renovations to bathroom updates, and have expressed satisfaction with the quality of their stone choices, particularly quartzite and granite. Overall, Keystone Marble and Granite is recommended for its wide selection, fair pricing, and commitment to customer satisfaction, making it a top choice for those seeking beautiful stone surfaces.
Had a great experience. Ken was a huge help from beginning to end. The install was excellent and nothing less than professional.
March 2026
Very happy with our quartz countertops. Install was quick and easy.
December 2025
Hi I just wanted to reach out and give everyone a big Thank You!! We are so happy with our new counter tops, the entire process from the day we walked into the show room to final installation was handled with perfection and professionalism, we will definitely be recommending you to our family and friends! Happy Holidays... read full comment
