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When held, touched and viewed side by side, Unilock products look and feel different, and set the standard for quality. That’s why so many homeowners, contractors, landscape designers, and architects across North America have trusted Unilock products over the past 40 years. Choose their brand for your next dream outdoor paving or landscape project!

Brentwood Unilock Products

If you are looking for elegance in masonry and hardscape products 9 Brothers Building Supply is your source for Brentwood Unilock products. You will find all you need to create superior designs and hardscapes that will last a lifetime. Visit one of our locations in Brentwood and Riverhead to see these quality products for yourself and let us help dreams become reality!

Stop in or get in touch!

Brentwood Location

Brentwood9Brothers

1670 Islip Ave. 
Brentwood,  NY   11717
Phone: (631) 273-3323

Riverhead Location

Riverhead9Brothers

28 Mill Road
Riverhead, NY 11901
Phone: (631) 208-1630

Services

We’ll help you through the process

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Forklift & Boom Service

a mini crane service for tight or hard to reach delivery spots!
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Delivery Service

with our fleet of ready to haul trucks anywhere on Long Island, NYC & 5 Boroughs
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Consult Us

to build your dream backyard, driveway, landscape, pool, or patio!

Delivery across Long Island, NYC, and the 5 boroughs

Construction Site Delivery

Local Pickup

Home Delivery

Contractor & Local Business Deliveries

COVID-19 Essential Businesses New York

COVID-19 Essential Businesses New York

Update – WE ARE OPEN – but here’s what changes to expect until further notice.

It is with sad dismay we must make this announcement – the COVID – 19 Coronavirus is severely impacting and changing everybody’s lives. We’re here to assist, and we are open during normal business hours – however we must make changes to how we do business at 9 Brothers Building Supply until further notice.

Essentially, we will not be coming into contact with clients.

Our stores are open for business. We ask that we limit clients to 1 client per visit, while practicing social distancing. We also encourage using phone calls and our website to browse our products.

We encourage all of our clients and Masons, Landscapers, and Contractors to PHONE-IN their order, and utilize our website catalog for shopping.

We are still delivering.

All customer payments will be digital over the phone via Debit Card/Credit Card. Only known businesses will still be able to mail a check to us. New businesses must drop off or mail a check and it must clear before any goods are shipped or released for pickup. You can become a “known” business by filling out a credit application.

If you have any questions, please ask. We urge you to visit NY Governor Cuomo’s Issues Guidance on Essential Business List.