The hand cranks that open casement windows come at a great advantage for windows in hard to reach places—such as above countertops, sinks, furniture, etc. You don't have to worry about pushing a window open or reaching up to close your windows—most hand cranks are found on the base of the window and make the windows extremely simple to open and close.
On average, casement windows are the second most energy efficient type of window, after fixed-pane windows. When closed, casement windows have an airtight seal, preventing unwanted airflow into and out of the house.
Unlike other windows that only open half-way vertically or horizontally, casement windows open completely. This can allow for a nice breeze into your home on a cool summer night or allow for the first feeling of spring to freshen up your home after a cold winter.
The locks on casement windows are embedded into the frame, providing enhanced safety and security. You can also choose how wide you want your windows open, so you don't have to leave your home vulnerable with a big opening.