Adding a bay or bow window instantly transforms a room and the way you use it. The window seat may become your favorite reading nook or a place to display your favorite plants or collectibles. Either type of window enhances your home from the outside by lending extra architectural detail. No matter what your preference is in the conversation about bay windows vs. bow windows in Pittsburgh, rely on Window Installation Specialists for sales and service.

A bay window is distinguished by a large fixed window in the center with a vent or fixed window on each side. This creates an angular expanse of glass and frame that extends out from a house. In contrast, a bow window is made up of four or five windows that form a gentle curve that juts out from a structure. The individual windows can be fixed or vent.

Bow and bay windows can be customized to fit your lifestyle needs with various combinations of picture, casement, and double-hung windows in an array of styles, colors, and materials. Count on our window installation specialists to include extra safety features such as using tempered safety glass and brackets for additional support. Call Melissa today for more information about bow or bay window installation.

Contact us today to choose a specialty bow or bay window for your house. We proudly serve customers in the Greater Pittsburgh area of southwestern Pennsylvania.

bay win

Our Windows Installers are InstallationMasters™ Certified Installers

The Window Installation Specialists installers are all certified InstallationMasters™, so you know they have significant window installation experience and are properly trained and skilled; they are technically carpenters. Our installers are specialists who have also completed nationwide training and certification replacement windows and exterior glass doors in residential and light commercial markets.

Our window replacement experts care about their work. Unlike many of our window replacement competitors, our window installers are not independent contractors, but full-time employees of Window Installation Specialists. Our uniformed window installers are fully insured with general liability, auto, and worker’s compensation too.

400 hung bay cat (1)

Bay and Bow

  • Available with casement windows in the following styles: 30° bay, 45° bay and 90° box bay; 10° bow
  • Available with double-hung windows in the following styles: 30° bay, 45° bay
  • Wood protected by vinyl or Fibrex® composite exterior
e series bow

Bay and Bow

  • Available with casement windows in the following styles: 30° bay, 45° bay, 90° bay and 10° bow
  • Available with double-hung windows in the following styles: 30° bay, 45° bay
  • Wood protected by aluminum exterior
  • Custom colors, interior woods and stains

A-Series

100 Series

frequently asked questions

What is the difference between bay and bow windows?
  • Bay windows typically consist of three window panels: a large fixed picture window in the center and two smaller windows on either side, angled outward from the wall.
  • Bow windows are made up of four or more window panels arranged in a curved shape, creating a more rounded appearance than bay windows.
What are the benefits of replacing windows with bay or bow styles from Andersen, Marvin, or Pella?
Bay and bow windows add more space, light, and visual interest to a room. They can make rooms feel larger and provide a panoramic view. Andersen, Marvin, and Pella offer high-quality, energy-efficient designs that enhance curb appeal and improve home value.
What materials are available for Andersen, Marvin, and Pella bay and bow windows?
  • Andersen: Offers bay and bow windows made from wood with protective composite exteriors (Fibrex®), which require minimal maintenance.
  • Marvin: Offers bay and bow windows in wood or fiberglass, including the durable Ultrex® fiberglass for enhanced strength and weather resistance.
  • Pella: Offers wood, fiberglass, and vinyl options for bay and bow windows, with customizable finishes to match various home styles.
Can bay and bow windows be customized?
Yes, all three brands offer customizable bay and bow windows, including the choice of window materials, grille patterns, finishes, interior stains, and exterior colors. They also offer different types of window panels (casement, double-hung, or fixed).
Are bay and bow windows energy-efficient?

Yes, bay and bow windows from Andersen, Marvin, and Pella are designed for energy efficiency. These windows feature insulated glass options, low-E coatings, and weather-resistant frames to reduce heat transfer and improve home comfort.

How much space do bay and bow windows add to a room?
Bay and bow windows can extend outward by several feet, adding extra space to the room. This creates a cozy nook or seating area while providing more natural light. The exact depth of the extension varies based on window size and design.
How do bay and bow windows perform in terms of durability?
Bay and bow windows from Andersen, Marvin, and Pella are built to last. Materials like Fibrex (Andersen), Ultrex fiberglass (Marvin), and multi-chambered vinyl (Pella) are resistant to warping, cracking, and moisture damage, ensuring long-term durability and performance.
What is the typical cost of replacement bay and bow windows?

Bay and bow windows are more expensive than standard window types due to their larger size and complexity. Depending on the material and custom options, prices range from $1,500 to $5,000 per window for Andersen, Marvin, and Pella. Installation costs can add to this price.

Can bay and bow windows be installed in any room?

Bay and bow windows are more expensive than standard window types due to their larger size and complexity. Depending on the material and custom options, prices range from $1,500 to $5,000 per window for Andersen, Marvin, and Pella. Installation costs can add to this price.

What warranties are offered by Andersen, Marvin, and Pella for bay and bow windows?
  • Andersen: Offers a 20-year warranty on glass and 10-year warranty on other components, including the Fibrex composite exterior.
  • Marvin: Provides a 20-year warranty on glass and a 10-year warranty on other materials for bay and bow windows.
  • Pella: Offers a limited lifetime warranty on its bay and bow windows, covering defects in materials and craftsmanship for long-term protection.