bay windows & bow Windows

Create a focal point on your home’s exterior

Bay windows and bow windows are a beautiful way to draw attention to your home’s exterior, even though they technically are not single windows. Bay and bow windows are constructed of double hung, casement and/or picture windows set side-by-side at varying angles.

The difference between a bay window vs. a bow window is simple: A standard bay window requires a larger window flanked on each side by a more narrow window, with each set at an angle. The center and side windows can be fixed, double hung or casement. A bow window is configured of four or more windows of equal size set at angles to create an arched projection. As with a bay window, the individual bow window components can be fixed, double hung or casement.

As a replacement for a set of double hung windows or standard picture window, a bay and bow windows replacement looks amazing in a living room or master suite, with a window seat that provides a great place to sit and read or just enjoy the view.

DESIGN BY Exterior Style

It's a classic

Bay and bow windows are most commonly used on Victorian and Classic/Colonial style homes.

Cape Cod

  • 1 or 1 ½ story with dormer windows and a steep roofline
  • Clapboard siding
  • Practical and uncomplicated in design


  • Two story, salt-box style home
  • Symmetrical architecture
  • Double hung windows with grids
  • Steep, side-gabled roofs


  • Mix of half timbers, stucco, stone or brick with decorative entryways
  • Steep slate roof with dormers & gables
  • Tall, narrow, multi-paned windows


  • Asymmetrical design
  • Large wrap-around porches
  • Ornate decorative trim
  • Towers, turrets and dormers

bay & bow Window Brands

Choose the right brand for your needs

ProVia’s bay and bow windows are available with a number of options, like color, decorative or stained window glass, privacy glass, tinted glass and interior grids, to further amp up your home’s curb appeal. Browse our window brands to learn more about the design options available if you’re looking for a bay or bow windows replacement.

Isolated image of one of ProVia's Aeris bay windows


Superior vinyl window construction paired with a beautiful wood-clad interior.
Isolated image of one of ProVia's Endure bay windows


Stunning energy efficiency and the most options for colors, glass and more.
Isolated image of one of ProVia's Aspect bay windows replacement options


Excellent mid-range window offering high energy efficiency and sturdy construction.

View our window brand comparison​


Your perfect windows could be a click away​

ProVia offers the most popular window styles you see in American homes, plus some that cater to very specific needs. We specialize in offering custom windows that meet exactly the design details, sizes, quality and budget you need. Learn more about our other window styles.

inspired to start your project?

Visit the Design Center to configure your product or connect with a dealer.

Get Inspired

Visit our window gallery to view more ProVia window products


From our blog

WINDOW-related videos

From our video library