9 Brothers Building Supply is your leading pergola supply company!

Brentwood Pergolas

9 Brothers Building Supply your source for quality Brentwood pergolas from Cambridge and Nicolock. Complete your dream outdoor living space with an elegant looking pergola. Whether a large pergola to cover your patio or a smaller one to give some style and shade over your outdoor kitchen. We also carry accessories like banners to add even more style to your pergola. Stop in at one of our locations today in Brentwood or Riverhead to check out our pergola collection for yourself!

Stop in or get in touch!

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

COVID-19 Essential Businesses New York

COVID-19 Essential Businesses New York

Update 6/17/20

Essentially, we will not be coming into contact with clients.

Our stores are open for business. We are allowing customers inside, but we ask that you please wear a mask - and follow social distancing guidelines. We would love to help.

If you have any questions, please ask. We urge you to visit NY Governor Cuomo’s Issues Guidance on Essential Business List.