Bay & Bow Windows
in Canada

Manufacturing and replacement ENERGY STAR® Rated & NAFS-11 tested windows and doors

  • Order Now and Pay in 2025
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Based on 1509 reviews

in Canada


Bay & Bow Windows Prices

What Are Bay & Bow Windows?

Bay windows combine a large stationary (picture) window in the center and two operable casement windows that flank it on either side. The angled window unit provides extra seating area for a unique design feature. The picture window feature allows more natural light to penetrate the room while the operating windows provide extra ventilation.

Other services: casement windows,
sliding windows, hung windows, fixed and picture, hopper, custom shape windows.

Ecoline bow windows combine four or five casement windows mulled into one continuous unit. They are designed to arch out with a cantilevered construction to provide a window seating area and wide views from every angle. The units can combine stationary and operable casement windows for extra ventilation.

Window Replacement: Case Studies

bay_window_complete Outside
bay 3 Edmonton Inside

Bay Windows in a Dining Room

Modern, elegant and stylish, this new bay window installation will blow your mind. The black exterior perfectly harmonizes the house design, while the side windows are comfortable to operate and provide excellent ventilation.
Dining Room
110.5″ x 71.5″
Triple Glass+Argon
$5,500 – $5,700
bow 1 Ottawa Inside
bow 1 Ottawa Outside

Bow Windows in a Living Room

Installation of new bow windows ensures the living room to have a lot of natural light coming into the area while having a significant level of energy efficiency.
Living Room
130.00″ x 55.00″
Exterior Black
Triple Glass
$3,500 – $3,700

Ecoline’s Hassle-Free Warranty

We are local, transparent and strive to build long-term relationships with all our clients. Your satisfaction is our reputation. That’s why all our windows come with a direct warranty from the manufacturer on:

  • Vinyl Frame
  • Seal Failure
  • Hardware
  • Installation
  • Labour
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Hassle-Free Warranty

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Ecoline Windows Manufacturing Process: Key Advantages

Cutting-Edge Technology

Cutting-Edge Technology: Ecoline employs state-of-the-art machinery such as Forel, Graco, Bottero and other techs to guarantee quality, precision, and consistency for every product manufactured.

Unmatched Energy Efficiency

Our commitment to craftsmanship and attention to detail results in manufacturing the most energy-efficient and reliable windows in Canada. All our products are the best for lowering energy bills and ensuring a comfortable living environment.
Ecoline windows

Industry Experts

Our team comprises seasoned professionals with extensive experience in the window & door industry. Such lifelong expertise ensures that all our products are manufactured to the highest standards, providing homeowners with peace of mind and long-lasting performance.
Matan Corin

State-of-the-Art Facility

Our impressive manufacturing plant spans over 60,000 sq. ft, allowing Ecoline to assemble exceptional windows and doors tailored specifically for your home. With such a vast space and various technologies, we can maintain strict quality control and deliver products that guarantee top performance according to Energy Star, NFRC and NAFS-11 energy standards.
Ecoline windows

Ecoline Windows Installers:
Expertise, Craftsmanship and Professionalism

Residential Window Replacement Specialists

Our team focuses on residential window replacements coming with unparalleled expertise here. Our installers meticulously prepare the work area, carry extra drop cloths to cover all walkways, protect your floors and ensure a thorough cleanup after completing the installation, leaving your home as tidy as they found it.
Ecoline windows

Dedicated In-House Team

Here is the thing – Ecoline does not use any subcontractors. Our skilled installers work exclusively for Ecoline Windows, ensuring all our clients receive the highest quality service and prompt attention. With our local in-house professionals, we can provide seamless communication and exceptional results proven by 98% positive customer reviews (BBB and HomeStars). Moreover, all Ecoline’s window installers are covered with WCB (Workers’ Compensation Board).
Ecoline windows

Adherence to Standards

We take pride in our meticulous installation process, which follows Canadian Standards Association (CSA) guidelines and adheres to your local building codes. This means your new windows will be installed safely and securely, performing at their maximum
Ecoline windows

Post-Installation Review

Following installation, our installation crew will demonstrate window operation and ensure your complete satisfaction with the job done
Ecoline windows picture

Window Frame Colours

Ecoline offers a wide range of colour options to match your new Bay window with your home’s exterior/interior. The most popular colours for our Bay windows are White, Commercial Brown, Black, Chestnut Brown, Sable, Slate Grey, or Cream. In addition, you have an opportunity to select a custom shape for your new Bay replacement window.

Commercial Brown
Chestnut Brown
Dover Gray
Forest Green
Iron Ore

Custom Windows Prices

*Note that the prices given in the table are approximate.

Size Double pane Double pane painted Triple pane Triple pane painted
46*38 (C/P/C)$1,715.8 – $2,277$1,843.64 – $2,390.41$1,798.7 – $2,350.54$1,712.9 – $2,463.95
46*38(F/P/C)$1,593.41 – $2,192.94$1,702.9 – $2,290.07$1,676.31 – $2,262.8$1,758.8 – $2,362.48
70*58(C/P/C)$2,313.49 – $3,057.27$2,463.51 – $3,203.87$2,438.14 – $2,719.86$2,588.15 – $3,326.47
70*58(F/P/C)$2,189.06 – $2,932.84$2,320.43 – $3,060.79$2,313.71 – $3,055.43$2,445.07 – $3,183.39
110*70(C/P/C)$3,557.75 – $4,447.28$3,780.51 – $4,670.04$3,780.45 – $4,669.98$4,003.21 – $4,892.79
110*70(F/P/C)$3,440.51 – $4,330.04$3,651.33 – $4,540.86$3,663.21 – $4,552.74$3,874.03 – $4,763.56

Come Visit Ecoline in Your City!

We are always happy to chat with our customers face-to-face. Feel free to visit any of our showrooms across Canada to learn more about our products and services.

Double & Triple Bay Windows

Glass panes are the largest area of any Bay window and the most vulnerable to heat loss and gain. To provide adequate thermal performance for harsh prairie climates, a minimum of 2 panes are required. Traditional 7/8″ double glazing options are used and can accommodate 1-1/4″ for all Bay windows.

In areas with prolonged low winter temperatures, triple pane windows will perform best. Ecoline triple glass packages qualify for high energy-rating standards with 1-3/8″ and 1-1/4″ options available. Can be used in combination with gas injection and/or LoE glass coatings but are not necessary.

Find out more benefits of triple pane windows over double pane


Ecoline offers you the two most popular window types – Bay and Bow. Bay windows are made of a picture window in the center and two operable casement units, while Bow windows combine four or five windows into one continuous unit.

Ecoline experts consider the triple-pane Bay replacement windows with LoE and Argon as a go-to option when it comes to overall performance.

The main difference lies in the number of units. While the Bay replacement window is made of 1 picture and 2 casement unis, the Bow window comprises 4-5 units.

Since the Bay window is made of several units (a picture window + 2 casement windows), it will usually cost significantly more than regular windows. To get a precise quote, please contact the Ecoline project consultant.

Usually, Bay Windows are installed in living rooms since these units are perfect for letting a lot of natural light into your area and providing excellent ventilation.

At Ecoline, we consider vinyl replacement Bay windows as the best option.