Angled & Arched Window Treatments
Custom-built treatments for windows that standard sizes were never designed to fit.
Specialty-shaped windows are one of the most common challenges we get called in for. Arched tops, angled peaks, circular windows, bay and bow configurations all require a different approach than a standard rectangle. Angled and arched window treatments need to be custom-fitted, and not every product works on every shape. We’ll tell you upfront what will and what won’t work for your specific windows.
What Types of Windows We Cover
We work with a wide range of specialty window shapes on a regular basis:
Arched Windows
A flat bottom with a curved top. The arch portion can be covered with a stationary fabric insert or left open, while the flat bottom is treated independently.
Angled Windows
Bay and Bow Windows
A series of windows that project outward from the wall. Each panel is typically treated individually, then coordinated to work as a unified look.
Circular and Oval Windows
Accent windows that are mostly decorative. Coverage options are limited, but stationary fabric inserts and shutters can work depending on the size and depth.
What Is and Is Not Possible with Angled & Arched Window Treatments
Specialty windows have real limitations, and we would rather be upfront about them than sell you something that does not work.
What is possible:
- Custom-fabricated shades and blinds that follow the angle of a sloped roofline
- Operable treatments on the rectangular portion of an arched window
- Decorative solutions for fixed arch sections that enhance the shape rather than fight it
- Full coverage or bottom-only coverage, depending on your light control and privacy needs
- Motorized treatments on hard-to-reach windows where manual operation is not practical
What is not possible:
- Standard off-the-shelf treatments on non-rectangular windows
- Fully operable treatments on sealed fixed windows, regardless of shape
- Complete light blocking on a fixed arch section without a custom insert
Product Fit Considerations
Adjustable or stationary?
Some treatments on specialty windows operate fully. Others stay in a fixed position. The window shape and the product determine what is possible.
Full coverage or bottom only?
Depends on how much light and privacy control you actually need. Some homeowners leave the top shape open for its architectural character and cover only the lower portion.
Hard to reach?
Which problem are you solving?
Too much light, glare, heat gain, or lack of privacy. Identifying the specific problem narrows the product options and leads to a better outcome.
How We Guide Homeowners Through Custom Window Decisions
Specialty windows fail when the wrong product is forced onto the wrong shape. We bring the experience to know the difference before anything gets ordered.
A few things we know from years of working with these windows:
- Honeycomb shades are the most adaptable option for angled and arched configurations
- Fixed arch sections almost always need a stationary insert, not an operable shade
- Motorization is not optional on windows above 8 feet
- Shutters require precise custom sizing and the right frame depth to work on non-rectangular windows
We bring this to every consultation so you are not paying for trial and error.
Products We Recommend for Specialty Windows
Most of our Hunter Douglas lines, including Alta by Hunter Douglas, have options that work on specialty-shaped windows. Alta is Hunter Douglas’s value-forward collection and a solid starting point if you want custom performance at a more accessible price point.
Products that work well for window treatments for angled windows and arched configurations:
- Duette Honeycomb Shades
- Applause Honeycomb Shades
- NewStyle Hybrid Shutters
- Heritance Hardwood Shutters
- Palm Beach Polysatin Shutters
Not every product on this list works on every window shape. That’s exactly why we do an in-home assessment before recommending anything.
Why Kansas City Homeowners Choose One Stop Decorating
One Stop Decorating is a family-owned window treatment company based in Kansas City, Missouri, with over 30 years in the industry. Brandon Roellchen grew up around this trade and has spent his entire career in it. He started One Stop Decorating because he saw too many homeowners get sold the wrong product by people who never bothered to look at their windows. His approach has always been simple: come to the home, understand the problem, and recommend what actually works. That’s still how we operate today.
When you work with us, here is what you can expect:
- Authorized Hunter Douglas Gallery Dealer
- Hunter Douglas Certified Motorization Specialist
- Free in-home consultation with no obligation
- Professional measuring and installation
- 1,469 five-star reviews from Kansas City homeowners
Verify our listing at hunterdouglas.com/locator.
Ready to Cover Your Specialty Windows?
Angled and arched window treatments are not something you can order online and figure out later. The shape, depth, and frame of the window all affect what will actually work.
Schedule a free in-home consultation today. We’ve been helping Kansas City homeowners solve specialty window challenges for over 30 years. Let us do the same for you.
Frequently Asked Questions
Can arched windows have working window treatments?
Sometimes. It depends on the size and depth of the arch. We assess this during our in-home visit and tell you what’s actually possible before you commit to anything.
What are the best blinds for arched windows?
Stationary fabric inserts are the most common solution for true arched tops. For the flat portion below, most standard shades and blinds work well. Honeycomb shades are the most versatile option overall.
Can angled windows be motorized?
Yes, and we recommend it often. Angled windows are typically hard to reach, which makes motorization a practical upgrade rather than just a convenience.
Do specialty window treatments cost more?
Custom shapes require custom fabrication, so yes, they typically cost more than standard window treatments. The in-home consultation gives you a clear picture of what to expect before you make any decisions.
Can One Stop Decorating handle bay and bow windows?
Yes. We treat each panel individually and coordinate the look so everything works together as a unified design across the full window configuration.