9 Brothers Building Supply is your leading outdoor kitchengrill island supply company!

Holbrook Outdoor Kitchens

9 Brothers Building Supply is a dealer of premier Holbrook outdoor kitchens, pizza ovens, grill islands, and cookers. We carry an expansive collection of fully assembled outdoor kitchens, kits, and kitchen hardware from top brands such as Cambridge, Eldorado Stone, Nicolock, and Techo-Bloc. These outdoor kitchens are available in a multitude of of colors and styles that are sure to complete a dream outdoor living space and hardscape. Visit one of our locations in Brentwood or Riverhead to see first hand this huge collection of outdoor kitchens and accessories today!

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Brentwood Location


1670 Islip Ave. 
Brentwood, NY 11717

Riverhead Location


28 Mill Road
Riverhead, NY 11901


We’ll help you through the process


Forklift & Boom 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