East Islip Building Supply in Long Island and New York City

Looking for a reliable East Islip building supply partner you can actually reach and work with? At 9 Brothers Building Supply, we stock the masonry, hardscape, landscape, and construction materials homeowners and contractors ask for every day. We supply driveways, patios, walkways, stoops, veneers, drainage, and structural needs, and we serve projects across Long Island and New York City. If you searched for building supply store East Islip or wholesale building supply East Islip, you are in the right place. We carry the brands you know and the quantities you need, and our team helps you pick the right materials the first time.

What We Carry

We keep the core categories ready so you can move fast:

• Manufactured stone, natural stone, hardscape, construction, and masonry materials

• Pavers, slabs, wall block, caps, steps, edgers, fire pit kits, outdoor kitchen components

• Mortars, grouts, sealers, adhesives, polymeric sand, drainage and vapor barriers, vents, ties, rebar accessories, and jobsite tools

Brand lineup our customers ask for:

• Cambridge, Nicolock, Techo-Bloc for pavers, slabs, and segmental walls with lots of colors and textures

• Glen-Gery, Watsontown Brick for clay brick and architectural units

• Eldorado Stone, Dutch Quality Stone, StoneCraft, and MSI for veneers, ledgestone, and panels

• Kindred Outdoors & Surrounds and StoneFire Core for outdoor kitchens, fire features, and surrounds

• Sika, Stego, and Smart Vent for adhesives, waterproofing, vapor barriers, and flood vent solutions

• ADA Solutions for tactile warning surfaces and safety

• Husqvarna, MAX, and Monarch for saws, compactors, nailers, and site tools

How People Use East Islip Building Supply in Long Island and New York City

Homeowners come to us for patio makeovers, front steps, and backyard fire features. We help match pavers and wall block to your house style, then set you up with the right base materials, edge restraint, and sealer so the project lasts. Contractors lean on us for consistent pallet pulls, veneer blends, ADA tactile domes, and jobsite consumables that keep crews moving. Real tip, bring square footage and edge lengths, then plan 5 to 10 percent extra on pavers or stone for cuts and spares. It saves a second trip and keeps blends consistent.

Pickup And Delivery

Pick up at our Brentwood, East Setauket, or Riverhead yards. We can load you fast, whether it is a few bags of mortar or a full truck of wall block. Need it on site? We deliver across Long Island and New York City, including tight streets and driveway drops, and we coordinate pallet counts and placement so crews can start swinging right away. Call ahead and we will stage your order for a quick in and out.

Get Started

Tell us about your project, patio size, wall height, or veneer area, and we will walk you to the right materials and brands. Stop by Brentwood and talk to us, or call ahead and we will stage your order. Ask us about delivery.