400 Series casement window

andersen casement window image

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.

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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.

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Claim to fame

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

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A top warranty in the industry

Every 400 Series window and door comes with one of the industry's best limited warranties. The warranty is even transferable, so it'll continue to add value if you decide to sell your home.

View 400 Series limited warranty
FEATURED
400 Series casement windows
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Technical guides for professionals

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

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400 Series Product Guide For Professionals

Created for trade professionals, product guides provide high-level overviews of the features and options available with each Andersen® product series. Additionally, they include detailed information on the construction of each type of 400 Series window and door, along with sizing charts and section details. Product performance data is also included.

Download (Opens in a new tab)View product guide (Opens in a new tab)

Andersen parts & accessories are always available

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The essentials

Area and opening specifications

Product details

Energy and performance

Warranties

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Additional resources

We're here for you

With the largest service network in the industry, we're ready if you need us.

Call 888-888-7020 or find a service provider.

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100 Series

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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
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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
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E-Series

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E-Series French Casement window wood interior product shot
  • Hinged on the sides with no center meeting stile, allowing for unobstructed views
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A-Series

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A-Series Casement window wood interior product shot
  • Weather-resistant design makes this our best-performing casement
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ANDERSEN ALUMINUM

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  • Multi-point lock on the perimeter of the frame offers enhanced security
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