Counterra Direct Source Countertop Stone Warehouses
Counterra fabricates and installs countertops from these trusted stone suppliers. Choose your slab and Counterra handles the rest — fabrication, installation and sink installation included.

MSI
Quartz, granite, marble and natural stone slabs, plus tile and flooring, with one of the broadest selections in the Boston area.
Visit website
Daltile
Stone & Slab Center with quartz, marble, granite, limestone and porcelain slabs, plus tile and flooring.
Visit website
UMI Stone
Hand-selected natural stone — granite, quartzite, marble, soapstone — plus Vicostone and Pompeii quartz and Infinity porcelain, in a new 56,000 sq ft Wrentham facility.
View UMI Boston live slab inventory
Boston Granite Exchange
Great selection of granite, marble and quartz with reliable, fair pricing.
Visit website


Cosentino / Silestone / Dekton
Silestone quartz and Dekton ultracompact surfaces from Cosentino, plus natural stone, all on display. Dekton resists heat, scratches, stains and UV, indoors and out. By appointment only.
Visit website

Cambria
Quartz made in the USA with a full lifetime warranty. Exotic, one-of-a-kind designs.
Visit website
Marble and Granite
Natural stone slabs — marble, granite and more — selected in person so the stone you choose is the stone you receive.
Visit websiteKosher Certification
These quartz brands carry a current kosher certification from a recognized certifying agency:
- Cambria: certified by UMKosher (United Mehadrin Kosher), valid through December 31, 2026.
- VicoStone: certified by Seal-K (Seal of the Kosher Trust) for year-round use, excluding Passover, valid through June 30, 2027.
Both certifications assume the countertop is used only with kosher food from the start. Kosher agencies such as STAR-K and OU hold that engineered quartz cannot be kashered once it has been used otherwise. Natural stone slabs such as granite, marble and quartzite are not certified as products, but STAR-K and OU allow a solid natural stone counter to be kashered. Ask your rabbi about your own kitchen.
In the Quartz Color Finder, look for the “Kosher certified” badge or use the “Kosher certified only” filter.
Call or text Pam to schedule a free in-home consultation 📞 617.540.0654Email Pam
