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400 Series

Casement Window


400 Series casement windows are hinged on the side, with the sash opening horizontally opposite the hinge. This allows for full ventilation from top to bottom of the window opening and the extended sash can catch the breeze and direct it into the house for better air flow. Made of wood protected by a vinyl exterior, it's our best-selling casement window.

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Stylish, Refined And Proven

Our best-selling casement window

Durable and time-tested

Never Needs Painting

Never Needs Painting

Exteriors won't peel, blister, flake or corrode
Window Materials

What's It Made Of?

Wood with a vinyl exterior to resist water and seal out the elements.

Sizing

Sizing

Available in a wide range of standard sizes. Replacement windows are available custom sized.  View all sizing documents for this product.

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Price

The final cost of a window will depend on the options and accessories you choose. Learn what's in a price
Energy Efficiency

Energy Efficiency

It's built into every window. We have options to help you meet the performance level you need.

Design Tool

Explore Options and Design Your Own

Use our easy step-by-step design tool to create the window or door you're looking for. Explore and select from a wide variety of options including interior and exterior colors, hardware styles and finishes, grille patterns and trim.

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MORE Product Details

Product Info Sheet

Use this quick reference guide to learn more about this product and decide if it best matches the style and performance you desire.

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Warranty

A Warranty You Can Trust

At Andersen, we pride ourselves in crafting durable, long-lasting products. That resilience allows us to offer some of the best warranties in the industry. They're even transferable should you sell your home. With our exclusive Owner-to-Owner® limited warranties, you get peace of mind, plus real added value.
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andersen transferable warranty

PRODUCT HELP

Technical Documents Library

Technical Library

Browse our extensive technical library for performance ratings, installation guides, operation instructions and care and maintenance guides.

Replacement Parts

Replacement Parts

We believe so strongly in our products that we still offer parts for some windows and doors built decades ago.

Energy Star Logo

ENERGY STARĀ®

Learn about ENERGY STAR® and certification requirements where you live.

Dealers Near You

Find A Nearby Dealer

Andersen Near You