Our Replacement Window Styles Fit Any Home Your Pella® windows should go hand in hand with the architectural style of your home and your lifestyle. Here are some examples of the window options Pella offers or that are available at our Beltsville showroom. Casement Replacement Windows A practical style for those who desire easy operation without reaching – casement windows open and close outward with just the turn of a handle. Awning Windows Awning windows smoothly open and shut with one handle. Bay and Bow Replacement Windows Despite having little wall space, a bay or bow window allows you to have more windows to enhance the view. Double-Hung Replacement Windows Double-hung windows bring together a traditional style with ventilation options. Both sashes open - a little or a lot. Single-Hung Single-hung windows feature a traditional style and open by sliding up the bottom sash. They are usually less expensive than double-hung windows. Sliding Windows Sliding windows have a single sliding sash that moves horizontally so there is no reaching involved. Specialty Replacement Windows Our Architect Series® line offers several additional window options featuring styles and operational types frequently found in first-rate homes around the world. Special Shape Windows You can use them to highlight other architectural features in your room, such as a fireplace, or they may be used alone in spaces where space is tight, like a stair landing. Custom One-of-a-kind wood windows are designed and built just for your space. Pella can build virtually any design you would like.