Serving Westport, CT · From our Bridgeport shop
CMG — Cornerstone Marble & Granite — fabricates marble, quartzite, granite, quartz, porcelain and soapstone in our Bridgeport shop, about twenty minutes up I-95 from Westport. Homeowners and designers are welcome at the slab yard to tag material in person before a single cut is made.


Westport projects tend to ask for the real thing: bookmatched marble islands, quartzite with movement, honed finishes, mitred waterfall edges, and full-height slab backsplashes. We cut everything in-house, dry-fit waterfall mitres in the shop before glue-up, and carry veining around corners so the finished piece reads as one stone.
For renovations in Saugatuck, Compo and Greens Farms we coordinate templating around the cabinet install, and most countertop installs are done in a single day.
Choose your slabs at the yard — sequential slabs if the job needs veining to flow across island and perimeter. We digitally template once cabinets are set, fabricate in-house, and install. Template to install typically runs one to two weeks.
Trade clients: we work from architects' and kitchen designers' drawings, flag seam placement before cutting, and send layout photos for approval on bookmatched work.
Around Compo, Saugatuck and Greens Farms, a lot of cooking moves outside in summer. For an outdoor kitchen or a covered porch we fabricate in large-format porcelain or dense granite, which stand up to sun, salt air and freeze-thaw winters. We don't put engineered quartz outdoors, because sunlight discolors the resin, and marble left in the weather loses its finish.
Porcelain edges are built up with mitred returns rather than shaped from solid, because the pattern is printed on the surface. Cutting and aligning those mitres is precise shop work. Our guide to outdoor kitchen countertops in Connecticut covers the choices in more detail.
Two recent Westport jobs, both fabricated in our Bridgeport shop: a kitchen with Calacatta Gold marble counters and a full-height backsplash, and a bookmatched Statuario marble fireplace surround. Each project page shows the stone, edge and finish, with photos of the finished install. More in our projects.
The showroom and slab yard at 46 Beatrice St, Bridgeport is open by appointment — twenty minutes from Westport, no bridge traffic required. Call 203-717-1978 or email hello@cmgstones.com.
Can I reserve slabs before my cabinets go in? Yes. Choose your slabs at the yard and we tag them in your name, then template once the cabinets are set.
How long from template to install? Typically one to two weeks, and most kitchens install in a single day.
When can I visit the yard? By appointment, Monday to Friday 8 AM to 5 PM and Saturday 9 AM to 1 PM.