Google reviewers rate Keystone Marble and Granite 4.9 out of 5 based on 96 reviews. Customers frequently praise the extensive slab selection, competitive pricing, and professional installation services, noting that staff are punctual, communicative, and accommodating of last-minute changes. While the owner replies to 48% of reviews, a pattern of criticism in low-star excerpts involves significant overestimation of square footage in quotes and missed template appointments.
Google rating: 4.9 out of 5 from 96 reviews (95% five-star).
Reviews on this page: 96 Google reviews (90 with written comments, 17 with photos).
Owner responses: the business replied to 48% of reviews.
Reviews from Google, shown as published (original wording, unedited).
SR
Susan Romano12 reviews
★★★★★
Keystone has the largest selection of slabs I've ever seen!! The showroom is beautiful. Staff are very friendly and were quite helpful throughout the process. The installation went smoothly and looks absolutely beautiful! We couldn't be happier!! Shout out to Ken, whose kindness and professionalism made everything so much easier!
Response from the owner · a month ago
Thank you so much Susan Romano. We greatly appreciate your positive feedback. It was a pleasure working with you.
I had a small auxiliary bathroom renovation that called for a counter top cut to suit a slightly unusual pattern. After shopping around the local vendors I visited Keystone. I still had questions, they were very patient with me, the selection of materials in my budget was exactly what I had in mind, the cost was competitive and they could do the measure and install quickly, which was a major requirement. As promised everything came together perfectly. Measure went smoothly, installers arrived exactly on time and completed the task with no fuss or bother.
We are well pleased with everything Keystone handled.
We had an outstanding experience with Keystone Marble and Granite from start to finish. They recently installed our countertops, and we couldn’t be happier with the results. The entire team was professional, knowledgeable, and incredibly easy to work with throughout the process.
From the initial consultation with Ken to the final installation, everything was handled with great attention to detail. They helped us choose the perfect material, answered all of our questions, and made the whole process smooth and stress-free. The craftsmanship is top-notch — the countertops look absolutely beautiful!
If you’re looking for quality, expert installation, and a team that genuinely cares about delivering a great finished product, I highly recommend Keystone Marble and Granite. We would absolutely use them again!
Response from the owner · 3 months ago
Thank you so much Owen. It was a pleasure working with you. We are glad you loved your countertops. Hope to work with you in future projects.
Keystone Marble and Granite of Horsham, Pennsylvania installed our countertops and backsplash. Everything went as expected. The work was done very well and in a timely fashion. Everyone at Keystone Granite was very helpful through the whole process from the start to finish. I have to give myself some credit for picking such a well run company. They have a great work ethic.
Response from the owner · 5 months ago
Thank you so much for your review. It was a pleasure working with you.
I had a very good experience at Keystone. I worked with Sev. She was friendly, helpful but not pushy. She answered all my questions, even after the project was done. She walked me through it step by step. The service was great and fast. The granite I chose is beautiful. The templator was patient with me while measuring and the installers made sure I was happy with the outcome. Can’t do better than that!
Response from the owner · 6 months ago
Hi Elizabeth, thank you for your positive review. It was a pleasure working with you. Hope to see you again in your future projects.
It is uncommon to find such a wonderful company to work with. Every step of the process at Keystone, from the day I walked in, to the final install, was customer-friendlly. Sev stepped up to explain the process and discuss options, including more cost-efficient ones. She was excellent, and always delivered on any promises including pricing and scheduling. Folks on the installation team were very professional, pleasant, and experienced, and explained anything that I asked about. My building contractor was impressed with their work as well. Thank you, Keystone, you have my thanks and my highest recommendation.
Response from the owner · 7 months ago
Thank you so much Lisa for your positive review. It was a pleasure working with you. Enjoy your new countertops.
The company did a phenomenal job. I like the fact that I could actually see the slab my counter top was going up come from and they weren't just showing me samples. They made sure I was going to be happy with what picked and gave me time to decide no pressure. Very fair proces compared to others and I have something you don't see in many houses. The seems are flawless. And it looks beautiful.
Response from the owner · 8 months ago
Hi John, thank you so much for your positive review. Your kitchen looks beautiful . The blues in your granite goes well with the cabinet color. We are glad you liked the outcome. Thank you for choosing us.
Have a great day.