Our most popular, hands down
It’s no surprise millions of homeowners have chosen 400 Series windows. Built on decades of engineering and design, these products offer legendary reliability and versatility.
Explore 400 Series windows
400 Series windows by type
Awning windows
What:The one that cranks open from the bottom
Where: Often placed higher on walls for privacy and air flow
Fun Fact: Can stay open in the rain so you hear the pitter patter & feel the fresh air
Bay & Bow windows
What: The cozy nook with at least three windows
Where: Most often used in living rooms and bedrooms
Fun Fact: Angled out beyond the house wall, for extra space inside
Casement windows
What: The one that cranks open
Where: Popular above kitchen sinks because they're so easy to open
Fun Fact: Can be as big as 6 ft. tall for more light and fresh air
Tilt-wash double-hung
What: The one that slides up and down
Where: Often placed... well, everywhere
Fun Fact: One of the most common windows in America
Woodwright® double-hung
What: The one that slides up and down
Where: Often placed... well, everywhere
Fun Fact: This timeless window is a best-seller for historic renovations
Gliding windows
What: The one that slides side to side
Where: Often found in kitchens, bedrooms and living rooms
Fun Fact: Like a sliding glass door, but smaller
Picture windows
What: The one that doesn't open
Where: Often combined with windows that do open
Fun Fact: Great way to frame views and fill your space with natural light
Specialty windows
What: The one that doesn't open, but comes in fun shapes
Where: Often used as a design statement
Fun Fact: A shape to fit even the most unique personalities
What is the life expectancy of Andersen® 400 Series windows?
*Visit andersenwindows.com/warranty for details
**2024 Andersen brand surveys of U.S. contractors

What are Andersen 400 Series windows made of?
400 Series products are primarily made from wood with a Perma-Shield® exterior cladding. The wood provides natural strength, insulation, and interior beauty while the Perma-Shield cladding makes them low-maintenance and weather resistant. Perma-Shield cladding is a proprietary, high-grade vinyl that we vacuum form or extrude around the wood for a superior seal.
Like all of our products, 400 Series windows and doors are fine-tuned with the right materials in the right places, which also includes fiberglass and our proprietary Fibrex® composite material.

How much do Andersen 400 Series windows cost?
In terms of cost, the 400 Series product line sits in the middle of our portfolio. As with all window and door pricing, exact cost varies by the product options you choose (size, type of door, configurations), your location, and your project type. Visit our pricing page for more information, or request a quote so a dealer can provide you with an accurate estimate.

What type of glass is in 400 Series windows?
400 Series windows and doors come standard with dual-pane glass for a strong baseline of energy efficiency, which is generally the same as most Andersen products. Still, there are several upgrades available, including triple-pane glass and low-emissivity (Low-E) coatings for better energy efficiency and reducing harmful UV rays. You can also upgrade to laminated glass, tempered glass, patterned glass, and art glass. Discover the difference between dual-pane glass and triple-pane glass, or read on about choosing the right glass.

Are Andersen 400 Series windows worth it?
We certainly think so! But don’t just take it from us. According to a 2024 brand survey of US contractors, 400 Series are the windows and doors contractors trust for their own homes.* They’re also our best selling and most popular products. And since all our products are made to last, they can also help reduce costs associated with repairs and replacement down the road. Ready to see if 400 Series is the right fit for your home? Request a quote today.

#1 Brand Contractors Trust
Contractors choose Andersen® 400 Series for customizable wood, lasting performance, and unmatched quality.
What's it made of?
Premium wood construction, customizable design, and craftsmanship built to endure.
Energy efficiency
Designed to perform beautifully and endure the test of time and the elements.


