Custom Windows in St. Louis

Curves, angles, arches, circles, ovals, octagons—Window World of St. Louis installs custom windows to meet all your needs. These fixed glass geometric shaped windows will enhance the architecture of any home and can be standalone or combined with other window styles to create a beautifully unique window!

0% Interest Financing For Up To 36 Months.
Personalization Makes All The Difference
Add Architectural Details to Your Home
Product Details
Color Options

No maintenance geometric windows from Window World of St. Louis are custom manufactured to meet your home’s personal style and taste. Replacing your old, drafty windows with our high-quality replacement windows is one of the best home improvement decisions you can make! While saving money on long-term energy costs, you’ll also be adding to the property value and overall beauty of your home! Their appeal:

  • Fixed-glass, geometric-shaped windows enhance architecture
  • Boost property value and overall beauty
  • Mix and match designs for unique window combinations

Custom window color options to meet your specific taste.

Color Options

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


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What is energy efficiency?

Energy-Efficient Windows

Energy-efficient windows add a layer of insulation where there typically isn’t one, which keeps your home’s interior temperatures more consistent and comfortable. Learn more about the benefits of energy-efficient products here.

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Your Questions, Answered

Custom Windows FAQs

Are custom-shaped windows energy efficient?

Yes! Our custom-shaped windows have the same energy-saving features you’ve come to expect from our traditional windows.

What geometric shapes are available for my custom windows?

Window World of St. Louis offers a wide variety of shapes, including curves, angles, arches, circles, ovals and octagons. Standalone or combined with other window styles from Window World, custom windows create a distinctive architectural look.

Choose from the following shapes:

  • Cathedral
  • Cathedral w/ Extended Edges
  • Circle Top
  • Ellipse
  • Eyebrow
  • Eyebrow w/ Extended Edges
  • Half & Full Crescent
  • Half & Full Circle
  • Half Eyebrow
  • Half Eyebrow w/ Extended Edges
  • Hexagon
  • Hexagon w/ Extended Edges
  • Octagon
  • Octagon w/ Extended Edges
  • Half & Full Oval
  • Pentagon
  • Equilateral
  • Pentagon
  • Pentagon Left/Right
  • Quarter Arch
  • Quarter Arch w/ Extended
  • Edges
  • Trapezoid
  • Triangle
  • Equilateral Triangle
  • Irregular Triangle
  • Isosceles Triangle

5-Star Google Ratings

What Your Neighbors Are Saying

The two men who installed our windows were very professional and did a great job. We have purchased windows from window world in the past. Great windows, and we even used their guarantee on a 10-year-old window. Thanks, guys!
Steve D.
The crew that installed the window were awsome and my new basement window looks amazing. I would recommend Window World to my friends.
Justin A.
Just finished up our house today, and I can’t recommend window world enough!! From start to finish, I’ve been informed, given exactly what they were going to do and the cost. They provided me ahead of time what we needed to have done before their arrival and the install crew was very nice, courteous and respected our house and belongings.
Chad W.

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