Custom Marble · Granite · Countertops
Stone, shaped to your home.
Washington Stone Corp fabricates and installs custom marble, granite and quartz — from slab selection to sealed, finished countertop — serving all of Long Island from Middle Island, NY.
What We Do
Every step, one shop.
We supply, fabricate, install and maintain your stone — one shop, start to finish.
Supplies
Marble, granite, quartz and quartzite slabs — hand-picked for your project.
Fabrication
Every cut, edge and sink cutout made in-house to exact measurements.
Installation
Delivered, leveled and set by our own crew — countertops, vanities, fireplaces and more.
Service
Chip repair, re-polishing and seam refresh that make worn stone look new.
Maintenance
Simple sealing and care plans that keep your stone protected year after year.
Materials
Choose your surface.
Natural and engineered stone, each with its own character — we'll help you match beauty to durability.
Marble
Granite
Quartz
Quartzite
Countertops · kitchen islands · bathroom vanities · fireplace surrounds · backsplashes · tables & custom pieces — if it can be made in stone, we can fabricate it.
Our Work
Built to be admired.
Project photos coming soon — follow @washingtonstonecorp for our latest installs.
The Process
From slab to installed.
Estimate
Call, email or DM us your measurements or plans — we quote fast and free.
Select
Pick your stone — we guide you through color, veining, finish and edge profiles.
Fabricate
We template your space and cut every piece to precise measurements.
Install
Our crew sets, seals and finishes — and we stand behind the work after.
About Us
Long Island's stone people.
Washington Stone Corp is a custom marble, granite and quartz countertop shop in Middle Island, New York. We handle the entire job ourselves — supplying the slab, fabricating every cut and edge in-house, installing it in your home, and maintaining it for years after.
Homeowners, contractors, designers and builders trust us for kitchen countertops, bathroom vanities, fireplace surrounds and commercial stonework in Coram, Selden, Centereach, Ridge, Yaphank, Medford, Patchogue, Port Jefferson, Mount Sinai, Miller Place, Rocky Point, Stony Brook, Smithtown and every Long Island town in between — because one shop doing everything means nothing gets lost between trades.
Get In Touch
Start your project.
Call or Text
(631) 384-2645Location