Bay and Bow Windows

Bay and bow windows do something a flat window can’t — they push the glass outward, pull more daylight into the room, and add usable floor space you can turn into a window seat, a reading nook, or a shelf for plants. For Calgary homeowners, they’re one of the most striking ways to open up a living room, kitchen, or dining area without altering the footprint of the house.

Window Craft designs, supplies, and installs custom bay and bow windows across Calgary and the surrounding communities. Because every projection window is built to the exact angle and opening of your wall, the fit, the sightlines, and the energy performance are all dialed in for your home — not pulled off a shelf.

Bay and Bow Windows

Benefits of Bay and Bow Windows

Most window pages tell you what a bay window is. This one tells you why bay and bow windows work particularly well in Calgary homes.

A bay window is built from three sections — a large fixed pane in the centre flanked by two angled windows (usually set at 30° or 45°) that project out from the wall in a crisp, boxy shape. A bow window uses four, five, or six equal panels curved in a gentle arc, giving a softer, rounded silhouette. Both push the glass beyond the wall line, and that projection is where the benefits come from:

  • More natural light from three directions. Because the side panels face out at an angle, a bay or bow window pulls in daylight across a wider arc than a flat window — a real advantage through Calgary’s long, low-sun winters.
  • Added interior space. The outward projection creates a shelf or bench deep enough for a window seat, storage, or display. In a kitchen it becomes counter or herb-garden space; in a bedroom, a reading nook.
  • Better ventilation. The operable side panels — casement or double-hung — can be opened to catch a cross-breeze from more than one direction. The more panels that open, the more airflow you get.
  • Curb appeal and resale value. A projecting window breaks up a flat façade and reads as a premium feature to buyers. It’s one of the most visible upgrades you can make to the front of a Calgary home.
    Wider, unobstructed views. The fixed centre pane is typically large and uninterrupted, framing your yard or street like a picture.
Built with a modern uPVC frame and insulated glass, today’s bay and bow windows deliver these benefits without the drafts and heat loss older projection windows were known for.

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Bay and Bow Windows Features

Windows Colors

Window Craft offers more than 10 colour options for bay and bow windows, including standard white, matte black, warm wood-look finishes, and a range of contemporary tones. Colour is applied through the full frame profile rather than painted on the surface, so it won’t peel, chip, or fade under Calgary’s intense UV exposure and freeze-thaw winters. You can match the interior to your trim and the exterior to your siding independently.

Windows Hardware

Frame and Construction

Every bay and bow window we install uses a multi-chambered uPVC frame profile engineered for both structural strength and thermal performance — important on a projecting window that carries more of its own weight than a flat one. Fusion-welded corners bond the frame at each joint rather than mechanically fastening it, eliminating the gaps that open up over years of freeze-thaw cycles. On larger bow configurations, we reinforce the head and seat boards and anchor the assembly to the framing so the projection stays true and draft-free for the life of the window.

Glass Type

Bay and bow windows put more glass on your wall than almost any other window style, so the glass package has a real impact on comfort and energy bills.

Double Glass

A double-pane unit has two glass panels separated by a sealed spacer filled with argon gas. A Low-E coating on the inner surface reflects heat back into the room in winter and deflects solar gain in summer. This is the standard configuration recommended for most Calgary homes and a strong all-round performer for bay and bow projects.

Triple Glass

A triple-pane unit adds a third glass layer and a second argon-filled cavity, delivering measurable gains in thermal resistance and noise reduction. Because a bay or bow window has so much glass area and side panels exposed to wind, triple glazing is especially worth considering for front-facing rooms, exposed lots, or homes on busy Calgary roads.

Single Slider windows are available in both the Ultraslim and Classic series

Ultraslim Series

The Ultraslim Series features a deeper 4-9/16″ frame and a slimmer 2-7/8″ visible profile, maximizing the glass area and the amount of light your bay or bow window lets in. It’s designed for seamless integration into new construction and larger openings where sightlines matter most.

Classic Series

A proven 3-1/4″ frame depth with a standard profile, the Classic Series is ideal for retrofit and replacement bay and bow projects. It offers excellent thermal performance and broad compatibility with existing openings, making it the practical choice for most replacement installations.

What Bay and Bow Windows Cost in Calgary

Bay and bow windows are custom, multi-panel assemblies, so they sit above standard windows on price. In Calgary, most bay and bow projects fall in the range of $2,500 to $5,000 per unit, supplied and installed, depending on the number of panels, the glass package, the frame series, and the structural work the opening requires.

Because Window Craft buys factory-direct, there’s no distributor markup built into that number. We provide a written quote after measuring in your home — not an estimate over the phone — so what you’re quoted is what you pay. We also offer financing options for larger projects, including full-home window replacements.

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About Window Craft

Window Craft has been installing windows and doors for Calgary homeowners for over 10 years, with more than 15,000 residential installations completed across Calgary and the surrounding communities. We handle measurement, supply, and installation under one roof — no subcontractors and no scheduling gaps between trades — which matters even more on a bay or bow window, where the measuring, the structural support, and the fit all have to line up perfectly. Every installation is backed by a 25-year fully transferable, non-prorated warranty.

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Window Solutions for Any Project Types

Whether you’re replacing a single front bay window or upgrading every window in the house, Window Craft has a solution. Beyond bay and bow windows, we install casement, awning, single and double slider, picture, and specialty-shape windows — so we can pair your new projection window with matching styles throughout the home for a consistent look.

We Serve Calgary & Area

Window Craft installs bay and bow windows throughout Calgary and the surrounding region, including the NW, NE, SW, and SE quadrants and communities such as Airdrie, Cochrane, Chestermere, Okotoks, and surrounding areas. Local knowledge matters: our installations are built and fitted for Calgary’s Chinook-driven temperature swings and Alberta Building Code requirements.

Bay and Bow Windows Projects in Calgary

FAQ

A bay window is made of three sections — a large fixed centre pane with two angled side windows — and projects out in a crisp, boxy shape. A bow window uses four to six equal panels set in a gentle curve, giving a softer, rounded look. Bays offer a bigger centre view and more interior shelf depth; bows give a wider, more elegant arc and more glass overall.

Yes. Because the glass projects beyond the wall, both styles create a shelf or bench inside the room. Homeowners use that space for a window seat, extra kitchen counter, storage, or a display area. The deeper the projection angle, the more interior space you gain.

Most bay and bow window projects in Calgary range from about $2,500 to $5,000 per unit, supplied and installed. The final price depends on the number of panels, the glass package (double or triple), the frame series, and any structural support the opening needs. Window Craft provides a written quote after an in-home measurement.

They can be very efficient when built correctly. Window Craft uses multi-chambered uPVC frames with fusion-welded corners and Low-E, argon-filled double or triple glazing. Because these windows have a large glass area and angled side panels exposed to wind, we pay particular attention to insulation and sealing at the head and seat boards to prevent drafts and heat loss.

Yes. The side panels are typically casement or double-hung units that open for ventilation, while the large centre pane is usually fixed for an unobstructed view. Choosing more operable panels gives you better cross-breeze airflow.

Often, yes. Because the assembly projects out from the wall and carries its own weight, it may need proper header support and reinforced seat and head boards. This is why an in-home assessment matters — our specialists confirm the opening can carry the window before installation, so it stays true and draft-free.

A straightforward replacement in an existing opening is typically completed in a day. Projects that require structural modifications, new headers, or exterior finishing can take longer. Your installer will give you a clear timeline as part of your written quote.

Every Window Craft bay and bow window installation is backed by a 25-year fully transferable, non-prorated warranty covering both the product and the workmanship.

A like-for-like replacement in the same opening usually does not require a permit, but enlarging the opening, changing the structure, or altering egress may. Window Craft can advise on permit requirements for your specific project during the in-home consultation.