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Bay & Bow Windows in St. Louis

Window World bay and bow windows are a great option when it comes to revitalizing your home. They allow natural light into your space, making it feel more welcoming and warm.

Natural Light Opens Your Living Space
Bring The Outside In
Product Details
Color Options

Our replacement bay & bow window options feature a multi-channel design, which adds extra insulation to keep temperature-controlled air inside your home. And constructed with 100% virgin vinyl (PVC), resin frame, and sashes that never peel, crack, chip, or warp, these windows are built to last. Learn more about the features below:

  • Extruded vinyl frames and sashes to help increase energy efficiency
  • An expanded view to bring additional light into your home
  • Add style to the exterior of your home
  • Offer a larger viewing area than most windows provide
  • Slimline reinforced mullion design for superior strength

Bay and bow window colors to meet your specific taste.

Window Color Options

*Color options may vary based on package, dimensions and more.


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What is energy efficiency?

Energy-Efficient Windows

When it comes to your home, energy-efficient windows require less energy to heat your space than traditional products. That means savings on your monthly bills and comfort year-round.

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Your Questions, Answered

Bay & Bow Windows FAQs

What are bay and bow windows?

Bay and bow windows add classic style to any home. These styles protrude from the exterior wall of your home, creating a 3-D arc effect on the outside and opening your home up on the inside. Bay windows have 3 glass panels while bow windows may have 4-6.

What is the difference between bay windows and bow windows?

While these two popular window styles offer many of the same aesthetics and benefits, what makes them different is the size and number of window panes in the configuration.

Bay windows feature either a three-pane or box design, typically with one “picture window” in the center and a smaller window pane on either side.

Bow windows are a similar structure but are made of four to six panes of angled glass in the same size.

Each bay and bow window is custom-made to perfectly fit the open space in your home and give it a one-of-a-kind look. Their dimensionality creates a dramatic new look for your interior, perfect for a reading area or breakfast nook.

What are the benefits of bow and bay windows?

Besides bringing natural light into your home, bay and bow windows can boast these benefits:

  • Incredibly strong with a slimline design
  • 3″ pre-insulated seatboard option helps increase energy savings
  • Color-coordinated, maintenance-free interior laminate surface
  • Available in double-hung, casement and fixed lite styles

Are bay and bow windows energy efficient?

Yes. All of our bay and bow windows are designed to insulate your home for maximum energy efficiency. You will enjoy lower energy bills and a more comfortable living area after installing our specially-designed products.

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What Your Neighbors Are Saying

We are very happy with our windows. They are beautiful. The 2 gentlemen that installed them were incredible at their job. They are very hard workers and very polite. They did a superb job. Very happy we went with your company. Will recommend
Alona C.
Window World was amazing! Their prices can’t be beat, and all the way from the sales rep to the install had no issues! I was extremely impressed by the installs promptness, cleanliness as well as consistently working through the install! The weather was a bit cold but the 3 men who were on the install team worked very well together and there wasn’t any debris or mess left behind!
Diane S.
The guys that did the install are amazing! So nice and did a great job of answering my questions. I just can not say enough good things about the install. The windows are beautiful and have really changed the view both inside and out!
Karen H.

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