Stone Window Sills Products

Stone Window Sills

Contractors and masons come to us for stone window sills that finish openings clean, protect the wall from water, and stand up to tough Northeast weather. We stock sizes and finishes that match today’s brick, stone veneer, and stucco details, and we support jobs across Long Island and New York City. We carry top brands, we cut through the jargon, and we can load you fast at our Brentwood, East Setauket, or Riverhead yards.

Types Of Stone Window Sills We Carry

  • Natural split-face and rock-faced sills for traditional masonry

  • Thermal or honed sills for a crisp, modern edge

  • Precast and cast stone profiles for repeatable color and dimension

  • Oversized sills for deep veneer walls and retrofit conditions

  • Matching corner and return pieces for bay and bump-out windows

Tip we give every day, check projection beyond the façade. Most sills want a 1 to 1.5 inch drip to shed water away from the wall.

Brand Options

Cambridge, reliable cast stone profiles that pair well with popular concrete pavers and veneers.
Eldorado Stone, engineered cast accessories that color-match their veneers for seamless transitions.
StoneCraft and Dutch Quality Stone, consistent textures and edge details that install quickly on veneer jobs.
Delgado Stone, natural stone sills in regional granites and limestones for custom, upscale facades.
MSI, broad palette of dense natural stones with thermal tops for clean, straight lines.
Techo-Bloc, architectural accents that coordinate with their wall and cap lines for cohesive exteriors.
Nicolock, durable cast accessories with contractor-friendly sizing across common openings.
Watsontown Brick, clay-centric colors and accessory pieces that tie into brickwork cleanly.

Where Stone Window Sills Are Used

You will see these on single family remodels, brownstone restorations, multifamily envelopes, school and municipal buildings, and storefront retrofits. They bridge the finish between window frames and the veneer, keep water moving out, and add a shadow line that makes the elevation look finished. For quicker installs, dry fit every opening before you start setting. Mark centerlines, verify pitch away from the window at roughly 1 to 2 degrees, and cut the drip kerf clean so water breaks free from the wall.

Pickup And Delivery Across Long Island and NYC

Swing through Brentwood for fast loading, or use East Setauket and Riverhead if those are closer to your site. We offer pickup for small lots or replacement pieces, and delivery across Long Island and New York City for full pallets or mixed loads with veneer, lintels, and sealants. Tell our counter your lift situation and site access. We can stage your order so the sills land in install order and your crew keeps moving.

Ready When You Are

Bring your takeoff, rough opening widths, veneer thickness, and the projection you want. We can help match color and texture across the brands we stock, or source special sizes when the detail calls for it. Need caulk, flashing, or shims, we carry those too. Call ahead and we will stage your order. Or stop by and talk to us about delivery scheduling for Long Island and NYC.

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Our Store Locations

Plainview Building Supply
Rockville Centre Building Supply
East-Setauket-Location-Image

Address: 70 Comsewogue Rd SUITE 9 (end of the road)
Setauket-East Setauket, NY 11733
Phone: (631) 928-4665

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