Try Our NEW Exterior Home Visualizer!

Making Your Dream Home a Reality is as easy as 1, 2, 3. Test out your home design skills with one of our sample homes, or take it to the next level and upload a photo of your own home. Select different name brands, styles, and colors of roofing and siding, even doors and windows. Save your project, and even work with a Riverhead Building Supply professional to make your dream home a reality.

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From the latest styles and trends, to the best deals around, the RBS Newsletter will keep you up-to-date on everything you need to know. Sign up today!

Celebrating Over 70 Years

Ensure your projects are done right every time with exceptional building supplies and services from Riverhead Building Supply. Since 1948, we have been providing our customers with premium building materials and services including flooring, roofing, railing, accurate and detailed estimates, pre-job planning services, the highest quality lumber and millwork and more.

Building in process of being built with premium lumber supplies and materials from Riverhead Building Supply

Build Smarter. Build Better.

General contractors, custom home builders, remodelers, architects and homeowners throughout Long Island, Connecticut, Massachusetts, and Rhode Island count on us for a broad range of lumber, building materials, and specialty services. From frame to finish, we have the tools, hardware, paints, fine cabinetry, wide plank wood flooring, mouldings and trim that you need. Make the smart choices for your building materials to ensure that every project is a smooth success. Build Smarter. Build Better.

Hammer and nails used by contractors for construction riverhead building supply