Everything Your Should Know About Bow Window Prices in 2025

Bow window replacement can be some of the more complicated and challenging projects. This applies both to the work required, and providing an accurate price or quote for the project. In today’s post, we’ll discuss some of the problems associated with bow windows, show you some pictures of completed work, and discuss risks associated with these projects.

Vinyl bow windows are a series of four or more adjoining window units, with five being the most common. Although bow windows don’t require the additional wall structure to be built, because these windows take up a fairly large area, there is always concern about the state of the wall structure surrounding the windows.

By providing your phone number and email, you consent to receive calls, texts, and emails regarding your request, including follow-ups and updates. Text HELP for help or STOP to cancel. Message and data rates may apply. Message frequency varies. For more information please check our privacy policy.

+1 (866) 644 6418

How Much Does Bow Window Replacement Cost?

Installing new bow windows is a significant home improvement project that can enhance your space’s aesthetic appeal and functionality. Bow window prices are not fixed and varies widely based on several factors. These include:

• Number of Units: The more window units in the bow window, the higher the cost.
• Glazing Options: Choices between double, triple, or specialized glazing can significantly affect the price.
• Custom Features: Unique designs, shapes, or sizes can increase costs.
• Colour and Finish: Custom colours or finishes add to the expense.
• Installation Complexity: Difficult installations due to size, location, or house structure can raise the overall price.

Each element contributes to the final bow windows prices, making these replacement units a highly customisable but variable investment with a high ROI.

How much do bow windows cost? Real installation projects showcase

Bow Window Sizes and Prices

Bow window sizes and prices are closely interconnected, with larger windows generally commanding higher prices due to increased material and installation complexities. Additionally, the choice of glazing has a significant impact on cost.

For instance, opting for triple-pane windows can increase the price by an average of 15% compared to double-pane glazing, offering better insulation but at a higher cost. The table below outlines average prices for bow windows, considering location, glass type, and size.

We recommend using our detailed bow window cost calculator for a more precise estimate tailored to your project.

Wood vs. Aluminum vs. Vinyl Bow Window Prices

Frame material is one of the biggest factors that influence the overall price of bow windows. Beyond cost, it also impacts energy efficiency, durability, and maintenance.

Wood Bow Windows

• Highest price range: starts at $6,000
• Timeless look and fully customizable
• Require painting, refinishing, and regular upkeep

Aluminum Bow Windows

• More affordable: starts at $4,500
• Strong and modern with slim frames
• Lower insulation unless upgraded with thermal breaks

Vinyl Bow Windows

• Most cost-effective: starts at $3,500
• Excellent energy efficiency and insulation
• Low maintenance, durable, and available in many finishes

Today, vinyl bow windows are the most common choice for most Canadian homeowners. They combine affordability with top energy performance, minimal maintenance, and long service life, making them the most practical investment compared to wood or aluminum windows.

Bow Windows Cost: The Hidden Risks

If you are considering a bow window replacement, make sure to always clarify everything with your window company down to every minute detail, especially the hidden costs that might come with this complex project.

By providing your phone number and email, you consent to receive calls, texts, and emails regarding your request, including follow-ups and updates. Text HELP for help or STOP to cancel. Message and data rates may apply. Message frequency varies. For more information please check our privacy policy.

+1 (866) 644 6418

Yes, one of the big “no-no’s” we always mention when it comes to discussing window replacements are hidden costs. And generally, that is true. When a window company provides you with a quote, all the work and materials should be accounted for so that the contract amount is the amount you pay in the end.

Except…

The one real exception to this case are bow windows. As we mentioned above, these units take a considerably large area in the wall structure. Because the condition of the wall affects the condition and performance of the windows, there are more chances for things to be wrong in bigger openings.

Consider the picture above. While the wall looks acceptable on the outside, it is completely rotten on the inside. Unfortunately, something like this is impossible to tell during the measurement process, and can only be recognised once the window is out. Because the wall still has to be fixed in order to install the new window, additional work was required in this case.

This is why we often give our bow window pricing with caution. If there are changes to the price of your window installation, be sure to discuss with your project consultant what these changes are based on, and what additional work is being done to reflect the increase in cost.

All Popular Window Styles For Canadian Homes: Ultimate Guide 8 Crucial Factors that Drive Window Replacement Costs Aluminum vs. Vinyl Windows Ultimate Comparison: Pros, Cons and Costs [2025]