Service Area

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!

Service Area

All Authentic
Unilock Products

Services

We’ll help you through the process

Forklift Service

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

Delivery Service

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

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

Send us a Message

Stop in or get in touch!

Plainview Building Supply

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

Rockville Centre Building Supply

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

East-Setauket-Location-Image

70 Comsewogue Rd SUITE 9 Setauket-East Setauket, NY 11733 Phone: (631) 928-4665