Andersen 400 Series Casement Window

A window hinged on the side, the sash opens horizontally opposite the hinge. This type of window 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.

  • Our best-selling casement window
  • Durable and time-tested
  • Exteriors won’t peel, blister, flake or corrode
  • Wood with a vinyl exterior to resist water and seal out the elements.
  • Standard sizes up to 3′ wide and 6′ high.
  • Custom sizes available in 1/8″” increments.
  • Also available in double and triple configurations.
  • It’s built into every window.
  • We have options to help you meet the performance level you need.

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