• Pencil Rod | Brentwood, NY | 9 Brothers Building Supply | 631-273-3323

    Starting a new construction project?

    Whether you are a contractor, landscaper, or do-it-yourself expert, 9 Brothers Building Supply can make any project easier with high-quality building materials. 

Contact Us Today

Year Established   1980

Languages         English, Spanish, Italian

Address

1670 Islip Ave.
Brentwood,  NY   11717

Email

Phone

631-273-3323

Business Hours

  • Monday - Friday : 6: 00 AM - 5: 00 PM
  • Saturday : 6: 00 AM - 2: 00 PM

We accept

  • Visa
  • Master Card
  • American Express
 

Riverhead, NY Location

Address

9 Brothers Building Supply 28 Mill Road
Riverhead,  NY   11901

Email

Phone

631-208-1630

Business Hours

  • Monday - Friday 7:00am - 5:00pm
  • Saturday 7:00am - 2:00pm
 

Wide-ranging product selection.

Our latest expansion of products and services includes new vinyl windows, ADA solutions, chemicals, sealants, adhesives, and much more. 

Prompt delivery to your door.

You can start your project right away with speedy delivery whether it is plywood, lumber, rebar, block, brick or another building material.

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