9 Brothers Building Supply

9 Brothers Building Supply Your top source for masonry, hardscapes, construction materials, and bulk materials! Offices, Hotels, department Stores, etc.).

State Certified WBE ..We are a family owned and operated building material retailer. We work with homeowners trying to enhance the look of their homes to contractors building superstructures (ie. Our vast line of products includes bricks, blocks, stone, and decorative pavers and also includes steel, wire, lumber and other structural materials. Our staff has 30+ years of industry experience and knowledge and is capable of helping all customers complete the job; no matter how big or small.

Clients want their backyard to feel like an extension of the home, are you building with that in mind?This poolside proj...
06/06/2026

Clients want their backyard to feel like an extension of the home, are you building with that in mind?

This poolside project uses Blu Grande Smooth slabs with Mika pavers from -bloc to create defined outdoor “rooms,” from the lounging zone to the dining area. Clean lines, smooth textures, and a layout that feels just as intentional as an indoor living space.

Want more ideas like this? Discover Techo-Bloc’s full collection or stop by our store to explore materials in person.

06/04/2026

What makes a backyard feel complete?
Is it the warmth of a fire, or the way the space invites people to gather around it?

The Nicolock Verona Fireplace in Oyster Blend brings structure and depth to outdoor living. Rich earth tones and classic block textures create a natural architectural presence, framing the fire in a way that feels both timeless and welcoming. Set within a patio design, it becomes a focal point that draws the eye and anchors the entire space.

A place where cool evenings naturally turn into longer conversations.

06/03/2026

Deliveries are rolling out on this beautiful day! ☀️🚛

Serving all of Long Island with fast, reliable delivery. Whether you’re working on a small backyard project or a large construction job, we’ve got you covered!

✅ Foundation Materials
✅ Pavers
✅ Natural Stone
✅ Mulch
✅ Gravel
✅ And much more!

From start to finish, we’re your one-stop shop for quality materials and dependable service.

📞 Contact us today and let us help bring your project to life!

Gravel Construction MasonrySupply DeliveryService 9BrothersBuildingSupply

Mix. Match. Standout patterns. The Industria series by -bloc gives you options clients notice.✔ Sizes✔ Textures✔ Colors➡...
06/03/2026

Mix. Match. Standout patterns. The Industria series by -bloc gives you options clients notice.
✔ Sizes
✔ Textures
✔ Colors
➡ Strong, versatile, and built for custom installs that stand out.

Stop by our yard and we’ll get you set up! 💯

06/03/2026

Bold texture.
Stronger lines.
A stone presence that instantly commands attention.

The Delgado Stone Strip delivers a thicker, more substantial profile, creating a veneer that feels grounded and architectural. Each natural stone piece carries rich variation and depth, bringing a sense of solidity and craftsmanship to the surface. The result is a design statement that feels both rugged and refined.

Offered in our natural thinstone veneer, it brings the weight and character of full stone into spaces designed to last.

06/01/2026

Warning: installing this backyard may lead to severe indecisiveness. Will you take a dip in the infinity pool on the lower level, or serve drinks with that jaw-dropping view on the upper terrace? These are the tough but amazing choices you have to make when every level is a brand new destination. Our Sahara/Chestnut Lite pavers are here to provide the perfect sandy, coastal vibes for whichever spot you choose.

As an authorized Cambridge Pavingstones With ArmorTec dealer, we have everything you need to make your dreams a reality!

06/01/2026

Morning light across stacked stone.
Pallets lined in quiet rows.
Materials waiting for their next destination.

Our incredible stockyard at Brentwood stands as a hub of movement and craftsmanship, where a wide range of stone is ready for builders, designers, and homeowners alike. From this yard and across all of our locations, carefully maintained inventory and efficient coordination keep projects moving forward without delay.

From selection to delivery, the process remains simple, reliable, and ready when your project is.

Skip the stain callbacks—build with Klean-Bloc™ by -bloc. 🔥Every slab comes factory-sealed with an invisible topcoat tha...
05/30/2026

Skip the stain callbacks—build with Klean-Bloc™ by -bloc. 🔥

Every slab comes factory-sealed with an invisible topcoat that blocks grease, wine, pet messes, and efflorescence, so your clients can just hose it off—and you’re off the hook!

👷 Want proof? Visit us and see Klean-Bloc™ in action!

05/29/2026

What gives a wall its quiet strength?
Is it the weight of the stone, or the calm rhythm of pieces set perfectly in place?

Ledgestone Kingsford Grey by StoneCraft carries a cool, grounded palette of layered greys and softened edges. The elongated forms create a steady horizontal flow, giving the surface a sense of balance and understated structure. Subtle variation in tone adds depth while maintaining a composed, architectural feel.

It is a texture that does not compete for attention. Instead, it settles into the space and quietly defines it.

05/28/2026

Warmth in every layer.

Dutch Quality Stone Dry Stack Sienna blends rich earth tones with clean, linear texture, creating a fireplace surround that feels both inviting and architecturally strong. The balanced variation in color adds depth without overwhelming the space, allowing the flame to become part of the design.

Crafted for lasting performance and timeless appeal, it transforms gathering spaces into grounded, welcoming interiors built to be enjoyed for years to come.

Address

1670 Islip Avenue
Brentwood, NY
11717

Opening Hours

Monday 6:30am - 4pm
Tuesday 6:30am - 4pm
Wednesday 6:30am - 4pm
Thursday 6:30am - 4pm
Friday 6:30am - 4pm
Saturday 6:30am - 2pm

Telephone

+16312733323

Website

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