Window Styles

Arched & Specialty Shape Windows

Arches, half-rounds, circles, trapezoids and triangles add character that a rectangle can’t. Whether you’re replacing an original arched window or adding a shape above a door, we build it to fit the opening exactly.

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How They Work

Built to the Shape of the Opening

Most specialty windows are fixed, made to match a curved or angled opening, and often set above or beside standard windows. Some shapes, like arched-top casements or double-hungs, can also open.

Getting them right starts with an exact template of the opening. We measure carefully, sometimes trace the shape, so the new window fits without gaps and the arch lines up with the windows around it.

Breakfast nook with arched windows over picture windows
Pros and Cons

Are Specialty Shapes Right for You?

The honest trade-offs, from the crew that installs them.

Why people choose them

  • ✓Adds architectural character and light
  • ✓Matches original arched windows on older homes
  • ✓Combines with picture, casement and hung windows
  • ✓Great over entries and in gables
  • ✓Available in most materials

Worth knowing

  • •Most shapes don’t open
  • •Custom sizes take longer to arrive
  • •Cost more than standard rectangles of the same area
East Bay Homes

Where Specialty Shapes Work Best in East Bay Homes

The rooms and homes where we recommend them most.

Original arched windows on Mediterranean and Spanish homesReplace like for like
Above front doors and in two-story entriesLight and curb appeal
Gables and vaulted ceilingsFill angled openings
Victorians and Tudors in Oakland and BerkeleyPeriod-correct shapes
Over a picture windowArch-top combinations
StairwellsLight high on the wall

See how we approach homes in Oakland, Berkeley, Alamo, Walnut Creek.

Brands We Install

Specialty Shapes From the Brands We Install

Every brand below makes shaped windows. Tap one to see its full lineup.

Anlin Geometric windows in Catalina and Panoramic. Anlin options → Milgard Radius and shaped windows in vinyl, fiberglass and aluminum. Milgard options → Simonton Specialty shapes in DaylightMax and Madeira. Simonton options → Alside Circle tops, arches, hexagons, octagons and more. Alside options →
Keep Exploring

Related Windows and Materials

Compare other options before your estimate.

Casement windows → Double-Hung windows → Sliding windows → Picture windows → Bay & Bow windows → Vinyl windows → Fiberglass windows → Wood windows → All window services →
Common Questions

Specialty Window FAQ

Straight answers from the people who install them.

Yes. We measure and template the opening so the new window matches the curve and lines up with the windows around it.
Most shapes are fixed, but arched-top casements and hung windows can open. We’ll show you what’s possible for your opening.
Each one is made to your exact shape and size, so lead times are longer than standard windows. We give you a real timeline with the quote.
Yes. Sunburst and radial grid patterns are available to match traditional styles.
It depends on the brand, material, size, glass and how many you’re replacing. We don’t quote a number before measuring. You get a fair, detailed written quote for free, and the quote is what you pay.

Free estimate · No obligation

Get a Free Quote on Specialty Windows

Tell us which windows you want to replace. Alex or Leon will measure, help you choose the style, brand and glass, and send a fair written quote. We usually reply within 48 hours.

  • Free, no-pressure estimates
  • Our own crew, no subcontractors
  • 5.0 on Google, 28 reviews
  • 4-year workmanship warranty

Prefer to talk? Call or text (925) 393-3578

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