Our Replacement Window Styles Fit Any Home Your Pella® windows should complement the architectural style of the room and your lifestyle. Explore our examples of the window styles Pella offers or that are available at our South Portland showroom. Casement Replacement Windows A practical style for those who desire easy operation and no reaching – casement windows open and close outward with the quick turn of a handle. Awning Windows Awning windows easily open and shut with one handle. Bay and Bow Even with a smaller wall space, a bay or bow window gives you more windows to enhance the view. Double-Hung Replacement Windows Double-hung windows mix a traditional style with ventilation flexibility. Both sashes open - a little or a lot. Single-Hung Replacement Windows Single-hung windows are a traditional style and open by lifting the bottom sash. They are usually less expensive than double-hung windows. Sliding Replacement Windows Sliding windows have a single sliding sash that opens horizontally so there is no reaching involved. Specialty Replacement Windows Our Architect Series® line offers additional window options featuring styles and operational types commonly found in fine homes around the world. Special Shape You can use them to feature other architectural features in your room, like a fireplace, or they can be used alone in areas where space is tight, such as a stair landing. Custom Windows One-of-a-kind wood windows are designed and built just for your home. We can build almost any design you have in mind.