400 Series casement window

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BEST SELLING

The crowd-pleasing casement window

The 400 Series casement window is a best-seller for a reason. It has plenty of options to fit the look and feel of your home, all while bringing in up to 6-feet of floor-to-ceiling fresh air.

*2024 Andersen brand surveys of U.S. builders, homeowners & realtors
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Is it right for you?

Material

Wood & vinyl. A vinyl exterior protects from weather while the interior is natural wood. This way you get the look you want without the worry of added maintenance.

Colors

7 exterior colors and 4 interior colors including natural, unfinished pine give you the option of a modern or traditional look.

Sizes

Sizes can be up to 3-feet wide and 6-feet high with custom sizes available in 1/8" increments so you can fill almost any space with fresh air and natural light. Check out The Essentials under the Tech Specs tab for sizing document links.

Accessories

4 hardware styles with up to 9 finish options and standard and custom grille patterns let you personalize the final look to match the character of your home. Andersen offers a variety of options and accessories.

Claim to fame

400 Series are the clad wood windows more contractors trust for their own homes

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Technical guides for professionals

View our sizing and performance documents to get your project started.

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Andersen parts & accessories are always available

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Additional resources

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Explore other casement windows

Casement

100 Series

$$$$$
100 Series Casement window white interior product shot
  • Made of Andersen-exclusive composite material (Fibrex® ), which is twice as strong as vinyl
  • Virtually maintenance-free
  • Available as single units or in twin and triple combinations
  • Available as replacement insert window

Casement

E-Series

$$$$$
E-Series Casement window wood interior product shot
  • Virtually maintenance-free aluminum exterior to resist water and stand up to the elements
  • Made to order in virtually any shape or size, in nearly any color, interior wood species or finish

French casement

E-Series

$$$$$
E-Series French Casement window wood interior product shot
  • Hinged on the sides with no center meeting stile, allowing for unobstructed views
  • Stained or painted wood interior with aluminum
  • Exterior to resist water and stand up to the elements

Casement

A-Series

$$$$$
A-Series Casement window wood interior product shot
  • Weather-resistant design makes this our best-performing casement
  • Wide array of style options including factory-finished wood interiors for architectural authenticity
  • Triple-pane glass options provide exceptional energy efficiency

ANDERSEN ALUMINUM

Casement Window

$$$$$
Heritage casement awning window
  • Unique hinges allow casement sash to open to 95° for maximum ventilation
  • This is your low-maintenance, energy-efficient window solution.
  • Multi-point lock on the perimeter of the frame offers enhanced security

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