Our Replacement Window Styles Fit Any Home Your new Pella® replacement windows should complement the architectural style of the room and your lifestyle. Explore our examples of the window types Pella offers or that are available at our Oklahoma City showroom. Casement Windows A great choice for those who need easy operation and no reaching – casement windows open and close outward with just the turn of a handle. Awning Windows Awning windows easily open and shut with one handle. Bay and Bow Replacement Windows Despite having little wall space, a bay or bow window will use more windows to capture the view. Double-Hung Replacement Windows Double-hung windows mix a traditional style with flexibile ventilation. Both sashes open - a little or a lot. Single-Hung Windows Single-hung windows have a traditional style and open by raising the bottom sash. They are usually less expensive than double-hung windows. Sliding Sliding windows have a single sliding sash that moves horizontally so there is no reaching involved. Specialty Pella offers extra window options featuring styles and operational types often found in exquisite homes around the world. Special Shape Windows Use specialty shape windows to highlight other architectural features in your room, like a fireplace, or they are also frequently used alone in areas where space is tight, like a stair landing. Custom Replacement Windows These original wood windows are designed and built just for your space. We can make nearly all designs you bring us.