Riverhead Building Supply is an authorized dealer of Andersen® windows and doors
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.Andersen is the #1 trusted window and door brand.* Andersen 400 Series are the windows contractors trust the most.** Andersen is the #1 brand for window replacement.***
* 2024 Andersen brand surveys of U.S. contractors, builders, architects & homeowners ** 2024 Andersen brand surveys of U.S. contractors. 2024 Andersen brand surveys of U.S. contractors
Visit a design showroom to see
Andersen products and speak with a Specialist
Andersen windows, replacement windows, doors,
parts and accessories
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 EXPLORE MORE
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.
Coastal Windows LIVE NEAR THE WATER? SPEAK WITH A WINDOW SPECIALIST TO UNDERSTAND YOUR OPTIONS
Coastal windows and doors feature Stormwatch® protection and are specially designed to resist impact from harsh weather.
Patio doors to large
Bi-Fold doors DESIGN YOUR DOOR USING ANDERSEN'S PATIO AND ENTRY DOOR DESIGN TOOL
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.
Door and window
parts and accessories INSTALLATION SERVICES ARE PROVIDED FOR WINDOW REPLACEMENT AND REPAIR - LEARN MORE HERE
Learn about our many Andersen collections
ANDERSEN® 400 SERIES
The 400 Series is Andersen’s most popular line of windows and doors. These products combine exceptional performance with style, and are designed to live up to the highest standards.
ANDERSEN® A-SERIES
Energy-efficient Andersen A-series windows and doors reflect authentic architectural style. Choose from an array of window types, wood species, interior and exterior colors and finishes, glass, and hardware.
ANDERSEN ® E-SERIES
Part of the Andersen Architectural Collection, E Series windows and doors are available in dramatic sizes and shapes, custom colors and finishes, exotic woods and more.
ANDERSEN® 200 SERIES
Andersen 200 Series wood windows and doors are the ideal balance of design, efficiency, innovation and price. This line offers a range of popular styles and sizes.
ANDERSEN® 100 SERIES
Made with Andersen’s Revolutionary Fibrex® composite material, Andersen 100 series windows and patio doors deliver the craftsmanship you need for less than you may expect.
WEILAND DOORS BY ANDERSEN®
Redefine boundaries with architectural lift and custom sliding doors that open up spaces and connect your indoor living areas to the outdoors.
Visit a showroom and speak with a specialist today
Connect with a millwork specialist
- New York
- Ph: 800-378-3650
- Txt: 631-900-3650
- New England
- Ph: 800-874-9500
- Txt: 401-200-3550