CLERA WINDOWS + DOORS · VINYL WINDOWS GUIDE

What Is a Casement Window?

A casement window is a window hinged on one side that opens outward like a door, operated by a hand crank at the bottom of the frame. It is one of the most popular window styles in Canadian homes due to its clean look, strong seal, and excellent ventilation.

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Casement windows close by pressing the sash tightly against the frame, creating a compression seal that is more airtight than sliding-style windows. For cold Ontario winters, these windows are the preferred choice in preventing air leaks and cold drafts.

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Where Casement Windows Work Best

Above kitchen counters, where you want ventilation but limited reach
Bedrooms, because the full opening allows maximum airflow
Any room where you want an unobstructed view with the window closed
Locations where the compression seal is critical for energy performance

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Single vs. Paired Casement

Casement windows are available in either single-casement (one sash) or paired-casement (two sashes side by side) configurations. Paired casements can be opened from opposite sides to create a wide ventilation opening while maintaining a central visual symmetry.

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Why Clera? Clera casement windows feature a multi-point locking system and reinforced sash construction for added security and a tighter weather seal.