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.

06/22/2026

This isn't just a patio; it's a life-sized game board where the only objective is to relax harder than everyone else. We are obsessed with this custom checkerboard look using our huge 24x24 smooth pavers and strips of perfectly green turf. It all started as a dream on a blueprint and ended with this masterpiece of backyard bliss, complete with its own personal waterfalls. Your move.

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

06/22/2026

Soft texture.
Coastal character.
Light that lingers a little longer.

Shore Breeze Rivenwood by Eldorado Stone combines layered linear stone with cool gray tones and subtle variation. The profile creates depth and movement, allowing light to travel across the surface while maintaining a clean, refined appearance.

Whether used as a feature wall or fireplace surround, the horizontal lines help open the space visually. Paired with natural wood, bright interiors, or contemporary finishes, it brings texture without overwhelming the room.

A surface that feels calm, balanced, and quietly connected to its surroundings.

Today we celebrate the fathers, grandfathers, mentors, and role models who built the foundation for everything we do. Th...
06/21/2026

Today we celebrate the fathers, grandfathers, mentors, and role models who built the foundation for everything we do. Their hard work, sacrifice, wisdom, and love continue to inspire the next generation every day. Happy Father’s Day from all of us at 9 Brothers!

Outdoor kitchens are in — and clients want clean, modern lines. That’s where Raffinato Wall from -bloc comes in. 🔥With i...
06/20/2026

Outdoor kitchens are in — and clients want clean, modern lines. That’s where Raffinato Wall from -bloc comes in. 🔥

With its smooth texture and sleek profile, it’s a go-to for:
✔️ Outdoor kitchens
✔️ Bar islands
✔️ Low retaining walls that double as seating

It’s form meets function — with a finish your clients will love to show off.

Need help planning a build? Stop by our store anytime!

06/18/2026

Everything in its place. And plenty of it.

Rows of stone, brick, and outdoor living systems, all ready for the next project to take shape. Texture, tone, and structure come together with consistency you can rely on.

Here in East Setauket, the yard is built to support momentum. When the right material is already waiting, the work moves differently.

💦 The hottest pool designs for summer-ready spaces.Industria Smooth patio slabs by -bloc bring clean lines and contempor...
06/17/2026

💦 The hottest pool designs for summer-ready spaces.

Industria Smooth patio slabs by -bloc bring clean lines and contemporary style to any outdoor lounge area.

🧊 Cool underfoot, even in full sun
🏡 Perfect around pools, patios & loungers
🧱 Smooth finish = barefoot-friendly luxury

📍 Visit us to explore this product and more!

06/17/2026

The next project starts here.
Materials ready to move.

Natural stone, gravel, pavers, wall systems, and masonry supplies, all selected to deliver consistency, durability, and lasting performance. Every product is chosen to support the work from the first delivery to the final detail.

Across the yard, materials are organized for efficiency and availability. Whether loading a pickup or coordinating a larger delivery, the process is designed to keep projects moving forward without unnecessary delays.

The right materials. Ready when the work begins.

06/15/2026

We’re putting up a permanent "Do Not Disturb" sign on this backyard. This elevated patio is the new official headquarters for peace, quiet, and professional-level relaxing. The super-clean lines of the smooth Omega Sandstone walls and warm XL pavers create a seriously serene mood that's literally built to last. Go on, your officially sanctioned quiet time is waiting.

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

06/15/2026

Soft color.
Easy texture.
A landscape that settles naturally into place.

Beige gravel from Long Island blends warm sand, cream, and amber tones with naturally rounded stones that feel relaxed and organic. The variation is subtle, creating movement across the surface without distracting from the space around it.

Used for pathways, drainage areas, and open landscape designs, it brings definition while maintaining a light, effortless appearance. Sunlight catches the stone throughout the day, adding warmth and dimension with every shift in angle.

A simple material that helps outdoor spaces feel balanced, inviting, and easy to enjoy.

Contractors, this is how you elevate a standard driveway or walkway without complicating the install.Terrazzo Paver deli...
06/13/2026

Contractors, this is how you elevate a standard driveway or walkway without complicating the install.

Terrazzo Paver delivers a polished, architectural look with the durability you expect on high-traffic jobs. Wet Cast precision, consistent finish, and a premium feel clients notice right away.

👉 Stop by our store to learn more about this -bloc product.

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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