Casement window are hinged on one side,Unlike common double-hung windows, casement windows operate by swinging outward,much like a door. They feature a handle that you can crank open horizontally to access the outside. many homeowners save on their energy bills after installing casement windows. Casement  windows are the one of the most secure window type on the market. It can come  in different sizes, colors and finishes. They are easy to use, opening  and closing smoothly every time.