Window Styles
Casement Windows
Hinged on one side and opened with a crank, casement windows swing outward like a door — and when closed, the sash presses directly into the frame for one of the tightest seals available.
How casement windows work
A crank mechanism opens the sash outward from hinges on one side. Because the sash closes by pressing into the frame (rather than sliding against it), casements typically seal better against air infiltration than sliding styles.
Best for
Kitchens and spots over sinks or countertops where a sliding sash would be awkward to reach, and anywhere maximizing airflow and seal quality matters most.
Pros
- Excellent seal — among the most airtight styles available
- Fully opens for maximum airflow, unlike sliding styles
- Easy to operate with one hand via the crank
- Unobstructed view when closed — no center rail
Tradeoffs to consider
- Opens outward, so exterior placement (near walkways, decks) needs consideration
- Crank mechanisms can wear over many years of use
Frequently asked
Casement Windows questions.
Excellent seal — among the most airtight styles available
Opens outward, so exterior placement (near walkways, decks) needs consideration
Kitchens and spots over sinks or countertops where a sliding sash would be awkward to reach, and anywhere maximizing airflow and seal quality matters most.
Ready when you are
Considering casement windows for your home?
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