
There are several different types of windows that each have their own function and benefits. In addition, each type has its own style and place it will look best in your home. Learn the difference between window options so that you can make the best choice for you and your home.
Awning Windows
Awning windows are hinged at the top and swing outward from the bottom. These windows are commonly referred to as crank-out windows. They are great for ventilation and offer lots of versatility. Their small size allows them to have a variety of placement options, including high on the wall, above or below another window or over the top of a door. They can also be used in multiples and in combination with other windows. This is done to provide ventilation above or below a stationary window and to create a visual impression. These windows can also be installed in hard-to-reach places like above your kitchen sink. As for ventilation, they are great at letting in air and natural light. Awning windows are also good for privacy as they are commonly placed high on walls in places like bedrooms and bathrooms.
Casement Windows
Commonly known as a hinged window, side-hung window or crank window, casement windows are hinged on one side and open outward. These windows have some kind of handle mechanism that opens and closes the window, typically a crank. Casement windows are also known for ventilation as the open panel can let airflow into your home easily. They are also known for providing an unobstructed view with a large glass area that is clear, crisp and brings in lots of natural light.
Double-Hung Windows
Considered the most popular style of windows in American homes, double-hung windows have two operable sashes that slide vertically within their frame. These windows are commonly referred to as sash windows for just that reason; they can be raised from the bottom or lowered from the top. This also improves ventilation and airflow. This window is also known for being one of the easiest windows to clean due to its tiltable sashes, which can give you easy access to the exterior of the window.
Single-Hung Windows
Another popular window choice: single-hung windows. This window is made up of two sashes like a double-hung window, but only one of them is operable. Single-hung windows can be raised from the bottom window while the top remains stationary. This opening allows for ventilation. This window style can be found at an economical price point and is compatible with many different styles of homes, as it has a very classic look and functionality.

Bay Windows
Bay windows are a combination of three, angled windows that protrude from the exterior of your home. Traditionally, this combination includes a large, fixed window in the center with smaller flanking windows on either side. These windows provide additional interior space and can make a room feel bigger because they extend further away from the building. This extra space can be used as a reading area or even converted into a window seat. Bay windows also can bring in lots of natural light from different directions because of their angles. These windows are quite large, so they fit best in exterior wall spaces that are 40 inches or larger. These windows can typically be found in living rooms, dining rooms or bedrooms.
Bow Windows
Bow windows are similar to bay windows but have some unique differences. Bow windows also protrude from the exterior of your home but bow windows are curved in a semi-circular structure rather than an angular one. These rounded windows create a more elegant look. Bow windows are also typically made with four or five similarly-sized windows, rather than the larger center window and two flanking windows that are found in bay windows. Since bow windows also extend outside of the home, they make the room look bigger and can bring in lots of natural light. A window seat can also be formed in the extra space provided by bow windows. Bow windows require a larger space than bay windows; they work best when they are put into exterior walls that are 80 inches or more. The windows themselves are most commonly fixed but can be operable if you choose.
Sliding Windows
Sliding windows, or slider windows, have a single panel that slides open horizontally. They are made up of two sashes: one that's fixed and one that moves. These windows are chosen for their large glass area that still has an operable sash since it lets in lots of natural light and fresh air. Sliding windows resemble single-hung windows in that they have only the one operable sash, but the sliding windows are horizontal rather than vertical. These windows are great for their wide views, compact functionality, durability and ease of use. They are popular in areas that open to a deck or patio, sunrooms and rooms with limited space.

Custom Windows
If you have a unique style or design in mind for your windows, custom windows may do the trick! At Pella, we can help you get made-to-order windows that are one-of-a-kind and based on your specifications. These windows can be made in nearly any size or design. We can create windows with different shapes, curves, and grille patterns as well. In addition, we can create fixed windows in special shapes including triangles and octagons. More popular shape choices include half-circles, ovals and arches. We also offer other specialty windows such as French casements and the European style, Tilt-Turn.
Windows for Your Philadelphia Home
There are a variety of home styles in Philadelphia, and many different window styles to match. For example, double-hung windows are a classic choice for many traditional and historic homes. You could also use single-hung windows as they look similar in style. If you live in Old City, Society Hill or Rittenhouse Square, you may want to go with traditional double- or single-hung windows. You could also incorporate other window options, like a bay window, to create architectural interest in the front of your home. If you are based in Northeast Philadelphia or Chestnut Hill and have a more modern home, you may want to choose windows that offer lots of glass space, including casement or awning windows. You can also choose to get custom fixed windows that align with your home’s architecture to create a contemporary look. Your Philadelphia home has many options when it comes to choosing the type of window you want.
With so many different types of windows to choose from, it can be hard to find the best fit. At Pella, we're here to assist you. We can help determine your wants, needs and style in order to choose a window that will work best for you and your home. With constant innovation, we seek to provide you with high-quality windows in any style that you choose. So, whether you want a large window with lots of natural light and a particular grille option or a unique window that provides architectural interest, we can work with you to make your design dreams come true. Ready to get started? Contact us today for a free, in-home consultation.