Make your dreams come true with the help of 9 Brothers Building Supply!

9 Brothers Building Supply is a family run business located in both Brentwood and Riverhead. Unlike the name suggests, there are not 9 brothers running the company. However, the name remains to pay homeage to the family that started it all in 1980, 4 brothers with five other siblings who had a passion for masonry and construction products alike.

The 9 Brothers Building Supply team has worked tirelessly to bring products to homeowners and contractors looking to bring their newest ideas to life. Whether you are looking to give your yard a complete makeover or simply update a patio, 9 Brothers has the products you need to make things happen.

With easily accessible pavers from leading brands such as Nicolock, Techo-Bloc- Unilock, and Cambridge Pavers available at our 9 Brothers Building Supply facilities, there is something for every one.

1670 Islip Ave, Brentwood NY 11717 |  (631) 273-3323

23 Mill Road, Riverhead NY 11901|  (631) 208-1630