The Largest Selection of Stone Countertops in Quebec
Union Stone offers a wide selection of natural stone and quartz countertops for kitchens and
bathrooms, backed by over 16 years of professional experience.
Visit Our Showrooms in Quebec
Mirabel – Now Open
17670 Rue Charles
Mirabel, QC J7J 0T6
📞 (450) 433-4888
Boisbriand – Open
840 Bd du Curé-Boivin
Boisbriand, QC J7G 2A7
📞 (450) 433-4888
Montreal (Carré Union)
Opening February 2026
Complete Home Solutions
Stone & Quartz Countertops
Stone Fireplaces & Tables
Wide Selection of Ceramic & Custom Cement Tiles
Faucets, Sinks, Bathtubs & Accessories
Outdoor Kitchens in Dekton
Turnkey Professional Service
Architects and Designers at Your Service
Our team supports you throughout your project, from material selection and design to final execution.
Professional Installation Included
Precise workmanship, respected timelines, and satisfaction guaranteed.
Granite au Sommet Becomes Union Stone
After 16 years of expertise under the name Granite au Sommet, we are proud to introduce Union Stone.
A Growing Quebec Company
Our mission is to offer our products across Quebec and Canada, provide the best service in the industry, and become Canada’s first online stone countertop sales platform.
Why Choose Union Stone?
Quebec’s Largest
Countertop Selection
High-End Products &
Custom Solutions
Expertise, Committed
to Excellence
Unmatched Service,
Satisfaction Guaranteed
Free Quote – No Obligation
Get in touch
Address: 17670 Rue Charles, Mirabel, QC J7J 1P3
Phone number: (450) 433-4888
Email: satisfaction@unionstone.ca