Riverhead Building Supply is an authorized dealer of Andersen windows and doors

Andersen® is the #1 trusted and recommended window & door brand.* Andersen® time-tested 400 Series products offer beauty, performance and durability. That’s why for over 22 years running, builders have used Andersen® windows more than any other brand.**

Andersen is the largest window and door manufacturer in North America and is the brand pros trust for dependable, high-performing windows, replacement windows, doors, parts, and accessories. We carry a full line of Andersen products including the 400 Series, A Series, and others.

* 2022 Andersen brand surveys of U.S. contractors, builders & architects. ** Hanley Wood Builder Brand Use Study 1998-2020, Windows – Wood & Clad-Wood Category.

Visit a design showroom to see
Andersen products and speak with a Specialist

SHOWROOM LOCATION

Andersen windows, replacement windows, doors, parts and accessories

Andersen has beautiful windows and doors to fit any design, function, or budget. For new construction or renovations, our innovative and high-quality Andersen products are the perfect choice.

DESIGN YOUR WINDOW TO MEET PROJECT SPECIFICATIONS

NEW CONSTRUCTION, REMODEL, & REPLACEMENT

High-quality Andersen products are the perfect choice for any design, function or budget.
  • Series – 400 Series, A-Series, and E-Series
  • Styles — Casement, awning, double hung, gliding, picture, bow, bay, and specialty sizes
  • Materials — Wood, vinyl, composite (Fibrex®), aluminum and fiberglass

Replacement windows

Replacement window projects are easy with Andersen.

  • Insert replacement windows preserve the original frame, exterior trim, exterior siding and interior casing, allowing you to get the latest window performance features while minimizing disruption to your home.
  • Full-frame replacement window solutions that go well beyond standard sizing. When insert replacement windows are not an option.
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Coastal windows
and doors

Coastal windows and doors feature Stormwatch® protection and are specially designed to resist impact from harsh weather.

Live near the water? Speak with a Window Specialist to understand your options

Patio doors to large
Bi-Fold doors

Our selection of Andersen doors includes single, multiple panel, gliding, patio doors, storm, and commercial entry styles. Choose from an array of colors, styles, sizes, materials, and finishes. Redefine boundaries with architectural lift and slide doors that open up spaces and connect your indoor areas to the outdoors.

Door and Window Parts and Accessories

Repair a window or door, or enhance its look and performance, with art glass, grilles, window hardware, handle sets, and replacement parts.

DESIGN YOUR DOOR USING ANDERSEN'S PATIO AND ENTRY DOOR DESIGN TOOL

Door and window
parts and accessories

Installation Services are provided for window replacement and repair - learn more here

Installation services are provided for window replacement and repair

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Learn about our many Andersen collections

Browse our stock door & window items.

Browse Our Stock Door & Window Items

Connect with a millwork specialist

Connect with a millwork specialist

Ph: 800-378-3650 Txt: 631-900-3650

New England

Ph: 800-874-9500 Txt: 401-200-3550