Does 9 Brothers Building Supply offer ADA-compliant products?

Yes, 9 Brothers Building Supply offers a selection of ADA-compliant products, such as ADA pavers, ADA tactile warning surfaces, and other ADA-compliant materials.

Can I purchase lumber and plywood from 9 Brothers Building Supply?

Yes, 9 Brothers Building Supply has a lumber yard that carries a variety of lumber, plywood, and other construction lumber products.

Does 9 Brothers Building Supply offer concrete and masonry supplies?

Yes, 9 Brothers Building Supply offers a wide range of concrete and masonry supplies, including concrete compounds, chemicals, curing and sealing liquids, and concrete forms and accessories.

Can I purchase outdoor living products from 9 Brothers Building Supply?

Yes, 9 Brothers Building Supply offers a selection of outdoor living products, such as stone fire pits, outdoor fireplaces, outdoor kitchens, pergolas, and pizza ovens.

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Voyager DBDeep data on millions of local businesses, with verified decision-makers to reveal.Contact ResearchHand-built prospect lists from human researchers, delivered in 24 hours.People SearchFind owners and decision-makers by job title, seniority and department.Chrome ExtensionColdlytics in your browser - prospect any business as you browse the web.IntegrationsInstantly, Smartlead, lemlist, Clay, HighLevel, plus Claude and ChatGPT over MCP.

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9 Brothers Building Supply

$8.0M revenue • 40 employees • 1670 Islip Ave, Brentwood, NY, 11717, United States

Last Updated Jul 31, 2026

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Company Overview

Company Name

9 Brothers Building Supply

Address

1670 Islip Ave, Brentwood, NY, 11717, United States

Website

9brothersbuilding.com

Phone

(631) 273-3323

Approx. Annual Revenue

$8.0M

Employees

Established

2013

Google Reviews

4.4 (70 reviews)

Google Business Category

Masonry supply store

Locations

About 9 Brothers Building Supply

9 Brothers Building Supply is a building materials and supply company located in Brentwood, NY, United States. The company carries a wide range of products for home, commercial, and municipal projects, including pavers, concrete compounds, natural stone, and construction supplies.

Business Profile

Read from the 9 Brothers Building Supply website on Oct 13, 2026. Hover an item to see the exact wording it came from.

Licenses, certifications & awards

NYS W.B.E. CertifiedIndustry certified

About the website

Website quality (AI-assessed): 7/10 · Current with new location announcement; Complete product and brand listings

Announcements

As stated on the 9 Brothers Building Supply website.

New location“opening of our new location in east setauket”

Recent changes

What changed on the 9 Brothers Building Supply website and Google listing, as detected by Coldlytics on each visit.

Oct 14, 2026 · Riverhead, NY
Google reviews went from 33 to 35
Oct 13, 2026
New location announced
opening of our new location in east setauket

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