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Pella® 350 Series Vinyl Casement Window


Casement windows open with the turn of a crank and are well suited for any room in your home. Pella 350 Series casement windows feature virtually invisible SmoothSeam™ interior welded corners for a more premium look of vinyl. And with triple-pane glass options and a premium frame design, they offer exceptional energy performance and long-lasting durability in harsh weather.


Pella 350 Series Casement Window Features

Why Vinyl?

  • Low-maintenance
  • Exceptional energy efficiency
  • Popular styles and options
  • Pella's exclusive vinyl formula
  • Quality craftsmanship backed by Pella

Performance Enhancements

  • Stronger than ordinary vinyl
  • SmoothSeamTM technology
  • Optional energy-efficient triple-pane glass
  • Sound-reducing and impact-resistant glass available

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Inside the Pella 350 Series Window

Pella 350 Series windows offer long-lasting performance with up to 18 insulating air chambers and a precision welding process. The multichambered frame provides superior energy performance. Pella’s precision welding process makes the window stronger and more durable and helps prevent warping, sagging and bowing.

Learn About Performance

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Options for Pella 350 Series Casement Windows

Choosing Your Window


Join a window together with other windows to add character to your home’s design. Additional combinations are available. See your Pella sales representative for the complete offering.

Frame Color

Pella 350 Series vinyl projects feature low-maintenance, easy-care vinyl frames. Choose from two solid-color frame options or dual-color frames featuring White interiors and nine exterior colors.


Styling Your Window


Pella's Fold-away crank is available in today's most popular finishes.


Grille Patterns

Grilles give the appearance of individual window panes. Pella offers many grille patterns to help enhance your home's architectural style.


Grille Profiles

For the classic look of individual windowpanes, choose grilles-between-the-glass or simulated divided-light-grilles. Learn more about grille profiles

3/4" Grilles-Between-the-Glass

Window Enhancements

Universal Security Sensors

Stay connected to your windows.

Preserve beauty, add comfort and enhance home security with optional Pella Insynctive® technology.

Protect what matters most. Monitor windows with time-tested wireless technology while at home or away with the Pella Insynctive App®.40 Learn more about Insynctive

insynctive app in hand with status


Pella's high-transparency screens are made of a finer screen fabric than conventional screens for a clear view that allows more air and natural light to flow into your home.

  • Pella's InView™ screens let in 14% more light and are 8% more open for improved airflow compared to conventional fiberglass screens.5

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Pella products are backed by some of the strongest warranties in the business.

Learn more about Pella warranties

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