Andersen Windows and Doors Available at Riverhead Building Supplies
Have Questions? Contact Us

Andersen Windows and Doors - New, Replacement & Parts

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 Silver Line Windows, the 400 Series, and many others.

Visit Riverhead Building Supply's Long Island and Rhode Island locations to talk to our experts and learn more about the Andersen products that will work best for your residential or commercial project.

Andersen Windows, Replacement Windows, Doors, Parts and Accessories

For new construction or renovations, our innovative and high-quality Andersen products are the perfect choice.

Silver Line Windows, 400 Series and More

Andersen has beautiful windows to fit any design, function, or budget!

  • Series — Silver Line Windows series, Andersen 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

If you have a window replacement project, Andersen offers a range of solutions to complement your style.

  • Insert replacement windows — Easy-to-install 400 Series double-hung windows, as well as casement windows
  • Full-frame replacement windows — Standard and custom styles and sizes for virtually any opening

Coastal Windows and Doors

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


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.

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.

Architectural Lift and Slide Doors, Folding Doors and more

Redefine boundaries with architectural lift and slide doors that open up spaces and connect your indoor living areas to the outdoors.

All Andersen windows and doors are covered by an Owner-to-Owner® limited warranty which covers 20 years on glass, ten on non-glass parts. The warranty is completely transferable from each owner to the next.

For 20 years running, builders have used Andersen® windows more than any other brand.*

*Hanley Wood Builder Brand Use Study 1998-2017, Windows - Wood & Clad-Wood Category

For Andersen windows and doors, look to Riverhead Building Supply. Contact us or call us today at 1-800-378-3650 (New York), 1-800-874-9500 (Rhode Island). Find out how easy it is to Build Smarter. Build Better.