400 Series casement window

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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.

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Is it right for you?


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.


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


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.


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

Choose your profile option

Contemporary Profile Option for select 400 Series products


Embrace clean and geometric lines with the contemporary interior profile.
Traditional profile option


Design for classic character with the traditional interior profile.

See this window in real homes.

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Design it to fit your life

Andersen Windows showing style options of colors and hardware.

A look you'll love

Make your door reflect the character of your home, from colors to hardware and more.
An Andersen Window with TruScene® insect screens.

Nature without the bugs

Any screen can keep bugs out, but TruScene® insect screens give you a clearer view and more fresh air than traditional screens.
A black Andersen Window with a short fractional grille pattern.

Form and function

Different grille patterns can change the look of your window and give your home a distinct style.

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.

400 Series casement windows
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Technical guides for professionals

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

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.

Andersen parts & accessories are always available

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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Explore other casement windows


100 Series

100 Series Casement Windows
  • 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

Exterior Colors

white color swatch option for andersen windows
Dark Bronze



E-Series Casement Windows
  • 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

Exterior Colors

white color swatch option for andersen windows
Dark Bronze

French casement


E-Series French Casement Windows
  • 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

Exterior Colors

white color swatch option for andersen windows
Dark Bronze



A-Series Casement Windows
  • 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

Exterior Colors

white color swatch option for andersen windows
Dark Bronze


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  • 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

Exterior Colors

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