Construction materials and hardware

You demand the highest quality construction materials and products on every job. At Riverhead Building Supply, you’ll find a vast array of superior residential and commercial construction supplies designed to make your project a success. If you need something that we don’t have, ask us! Our long-standing manufacturer relationships enable us to special order items we may not stock in our stores.
Building materials

Quality homes start with quality building materials

At Riverhead Building Supply we only stock premium lumber and quality brands of roofing, siding, decking, and more to ensure a quality build that stands the test of time and builds your reputation.

All of your hardware store needs

Riverhead Building Supply is your one-stop for all of your household hardware needs. Cabinet & furniture hardware, hinges, locks & handlesets, mailboxes & house numbers, to small electrical, plumbing, heating & cooling, and automotive items as well as safety items, flashlights, and so much more.

All the tools you need to get the job done right

We sell top brands of hand and power tools that deliver professional-grade power to both pro’s and do-it-yourselfers. With over 300 power tools and over 1,000 accessories, finding the best tool for your project is key and Riverhead Building Supply is here to help.
Landscape & outdoors

Outdoor living and maintenance materials

Shop Riverhead Building Supply for masonry pavers or decking to transform an outdoor space. Both trade pro’s and homeowners will find basic gardening and landscape items under one roof and so much more.
Doors & windows

Riverhead Building Supply is a leading source for custom doors and windows

For custom doors and windows, look to Riverhead Building Supply. We offer our Long Island and New England customers the widest selections of quality doors and windows, providing you with the confidence and flexibility to help you or your clients make the best decisions for any project.
Cabinetry & countertops

Custom kitchen cabinetry, countertops & more

Riverhead Building Supply carries a full range of fine cabinetry brands to suit every style and need; teamed with quality countertop brands, the possibilities are endless. From a new or remodeled kitchen, to home offices and mud rooms, we can help turn your plans into reality.
Moulding & trim

All of your moulding & trim needs

When it comes to custom millwork, moulding and trim of any kind, Riverhead Building Supply is the place to start. Choose from a variety of wood species or composites, select from hundreds of profiles, or create your own signature design. We have stock on the ground and our own Millwork Shop to expedite your needs.
Architectural hardware

Quality craftsmanship demands quality hardware

Find the top brands of architectural, fine hardware for entry systems, cabinets and more to personalize every job. Riverhead Building Supply stocks quality brands that value fit, finish, feel, and function to ensure your clients satisfaction.
Paint & stain

Interior & exterior brands with a focus on quality

Whether you’re an industry professional or a homeowner, our specialists will work with you to find the paint products and colors you’re looking for. Using the latest technology, our experts can create custom colors to personalize any home.

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