Awning and hopper windows look incredibly similar from the outside of a home, and are often incorporated in similar physical locations as well.  Both windows are rugged, stylish, secure, and dependable.  They are both hinged, allow for control over air ventilation, perform well against the elements, and are used for privacy and security.  Much like awning windows, a hopper window can be incorporated just about anywhere in a home.  Both feature tight, solid locks and provide good insulation as well.  While an awning window features the unique ability to be propped open in the rain, hopper windows prove to be very efficient at blocking debris when propped open, providing a homeowner control over ventilation.  Both can also be used in conjunction with larger windows to create a unique design, and may feature pressure seals to help further improve insulation and reduce external noise.

The main difference between awning and hopper windows is that awning windows are typically hinged at the top and will open up and out, while hopper windows are typically hinged at the bottom and will open down and in. This difference may not be noticeable when the two windows are locked, but becomes clear when they open.