Customers frequently cite the company's professional communication, punctuality, and helpful guidance during the selection and installation of quartz, granite, and marble countertops. Reviews highlight the team's responsiveness and reasonable pricing, while noting the business operates as a family-run shop. However, low-star feedback identifies recurring issues with material defects, such as chips and streaks in quartz slabs, as well as post-installation problems including staining and dust exposure during dry cutting.
Google rating: 4.9 out of 5 from 92 reviews (96% five-star).
Reviews on this page: 92 Google reviews (84 with written comments, 10 with photos).
Owner responses: the business replied to 62% of reviews.
Reviews from Google, shown as published (original wording, unedited).
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Colleen Hanson5 reviews
★★★★★
Our quartz countertops came out beautiful and all of the staff at Cosmos was very helpful throughout the decision making process. They were organized, timely, and professional. Definitely recommend!
Response from the owner · 4 days ago
Thank you Colleen! Your kitchen looks beautiful! Thank you for your business!
We're so happy with our new counters. Stacy (and the whole team) was accommodating, communicative, and helpful. From measurement to install, everything went smoothly.
Response from the owner · 2 months ago
Thank you Emily! Your kitchen looks stunning! Enjoy!
Excellent company to work with! They did an amazing job and our kitchen counters are beautiful. Very professional and their communication is top notch. They also saved us thousands compared to other quotes I recieved because they have a water jet cutter so we only needed one slab for our backspalsh. Highly recommend!
Response from the owner · 3 months ago
Thank you for your review Andrew!! Enjoy your new stunning kitchen!
Ive hired this company twice now and have been really happy both times. In 2024, they installed a full-size backsplash in our residential kitchen, and more recently they completed a countertop installation for a commercial space. They were competitively priced, professional, on time, and did excellent work on both jobs. I wouldn’t hesitate to use them again.
Response from the owner · 9 months ago
Thank you Adam! It was a pleasure working with you again!
We recently had new Super White Dolomite countertops installed by Cosmos Marble & Granite, and the whole experience was fantastic! From the initial consultation to the final install, everything was smooth and stress-free. Stacy is the best, and I mean THE BEST... We had so many questions and she answered every one, not only in great detail, but promptly. Without any hesitation, Stacy pulled out all four slabs of the lot we chose so we could see them in person. She even had alternatives from other wholesalers lined up in case we wanted to see something different. Her level of concern for our comfort was remarkable and made it such a personal experience. Last minute, we wanted to upgrade the powder room vanity and Stacy generously added this to our order at no extra cost. The entire team was friendly, professional, and incredibly careful in our home. We also had a ton of questions during the template and Lefteris, in such a good spirit, happily answered every one and talked through options that we didn't think we had a say in or even considered! The installation was on point! They left the workspace spotless, and the craftsmanship is absolutely beautiful — every seam and edge is perfect. Our kitchen looks amazing now! We’re so happy we chose Cosmos and would recommend them to anyone looking for high-quality work and great service. We can't wait to work with them again when we are ready to redo our bathrooms! Thank you, thank you, thank you!!
Response from the owner · 11 months ago
Alexandra, thank you for your kind review! It was a pleasure working with you and I am so happy everything turned out to your satisfaction.