Building Supply Near Sag Harbor

Need building supply near Sag Harbor for a masonry, hardscape, construction, or bulk material job? We help contractors first, and homeowners second, with the materials, brands, and yard support needed to keep projects moving across Long Island and NYC.

At 9 Brothers Building Supply, we stock a wide mix of building materials for patios, walkways, retaining walls, foundations, stone veneer, concrete work, drainage, outdoor living, and jobsite supply. Our customers work on everything from residential backyard upgrades to commercial and municipal projects. We see this a lot near Sag Harbor, where planning ahead matters because delivery access, staging space, and project timing can get tight.

We carry materials from our Brentwood, East Setauket, and Riverhead yards, with pickup and delivery available across Long Island and NYC.

What We Carry

We stock and supply materials across four main categories:

Masonry, including brick, block, stone veneer, mortar-related products, cement materials, wall ties, and jobsite masonry supplies.

Hardscapes, including pavers, slabs, retaining wall systems, caps, steps, edging, base materials, jointing products, and outdoor living products.

Construction materials, including waterproofing, vapor barriers, sealants, repair products, concrete accessories, drainage products, tools, and site supplies.

Bulk materials, including aggregates, sand, stone, gravel, and base materials for patios, driveways, walkways, walls, and construction prep.

Brand options may include 4 Seasons, Laticrete, Sika, ADA Solutions, Inc., Smart Vent, MAX, Monarch, Stego, Husqvarna, W.R. Meadows, Alliance, Dutch Quality Stone, Eldorado Stone, StoneCraft, Kindred Outdoors & Surrounds, Espoma, Reed & Perrine, Delgado Stone, Cambridge, Glen-Gery, MSI, Nicolock, Techo-Bloc, Unilock, and Watsontown Brick.

How Contractors Use Building Supply Near Sag Harbor

Contractors come to us for reliable material access, fast loading, and help matching the right product to the job. That might mean pavers and base for a driveway, brick and stone for masonry work, drainage materials for a site improvement, or bulk stone for staging before a larger install.

Here’s why planning matters. If you are working near Sag Harbor, check the delivery location before ordering. Narrow roads, limited driveways, tight staging areas, and seasonal traffic can affect where materials get dropped. A good tip from the counter, order your bulk base, sand, and wall or paver material in a sequence that matches the install. It keeps the site cleaner and helps crews avoid moving the same material twice.

Homeowners also visit us when they want to see colors, textures, and product options in person before starting a patio, walkway, veneer, or outdoor living project. Our team can help you understand what goes with what and what to ask your contractor before the job starts.

Pickup And Delivery

You can pick up materials from our Brentwood, East Setauket, or Riverhead yards. We can load you fast when your order is ready, whether you are grabbing a few jobsite supplies or a larger material order.

We also offer delivery across Long Island and NYC, including service for projects near Sag Harbor. Call ahead with your material list, delivery address, and jobsite notes. We can help stage the order, review access details, and make sure the right materials are ready for pickup or delivery.

Get Started

Need building supply near Sag Harbor? Call ahead with your list, stop by one of our yards, or ask us about delivery across Long Island and NYC.