Windows / Casement
Casement window installation
A casement swings out on a hinge like a door, driven by a crank. Because the whole sash opens, it ventilates better than any other operable style, and it pulls tight against the frame when closed.
How it works
Turning the crank swings the sash outward from one side. The multi-point lock draws the sash into the weatherstripping all along its edge, which is why a closed casement seals so well. There is no rail across the middle of the glass.
Where it fits well
- Over a kitchen sink or counter where reaching a lift rail is awkward
- Rooms that need maximum ventilation from a given opening size
- Catching a breeze — the open sash can scoop air moving along the wall
- Contemporary and transitional exteriors, and unobstructed views
What to weigh
- The sash opens into the exterior — keep clear of walkways, decks and patios
- Very wide casements are heavier on the hardware; your estimator will size them appropriately
- Screens sit on the interior side, since the sash swings out
Questions
Casement — good to know
Are casement windows more energy efficient than double-hung?
The design seals tightly because the lock pulls the whole sash against the weatherstrip, with no meeting rail. Actual performance depends on the specific unit and glass package, which we go over at the estimate. We do not quote a savings percentage.
Will a casement window hit my deck when it opens?
It can. Where a walkway, deck or patio is in the swing path we will recommend an awning, sliding or double-hung unit instead.
Other window styles
More window styles
Next step
A better view starts here.
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