How Much Does Window Replacement Cost in Ontario? A Complete 2026 Pricing Guide
If you're asking how much it costs to replace windows in Ontario, the short answer is roughly $600 to $1,800 or more per window, installed. That range covers the window unit, labour, removal of the old window and basic trim. Where your project lands depends on the frame material, the glass, the size and style of the window, and how it's installed.
A whole-house project in a typical three-bedroom home often runs from $12,000 to $25,000 or more. Because the range is wide, this guide breaks down what drives the window replacement cost, how prices differ by style, and how to budget and get an accurate quote.
What Drives the Cost of a Window Replacement
Frame Material
The frame is one of the biggest cost factors. Vinyl, aluminum, wood clad, aluminum clad, fiberglass and steel each come with different price points, looks and performance. Vinyl is generally the most budget-friendly, and our vinyl windows are a good place to start if budget is a priority. Aluminum windows are chosen for slimmer sightlines, strength and a modern look, and ours are built with thermal breaks for better energy performance. GEM offers options across several materials and collections, including GEM Carbon Steel. Our guide to the pros and cons of different window materials walks through the trade-offs for Toronto homes.
Finish and trim affect the price too. White is the standard finish and is usually the most affordable, while a painted or coloured finish typically costs more. Adding brickmould (the exterior trim around the frame) or a jamb extension (which fits the window to the thickness of your wall) also adds material and labour, so check whether they're included when you compare quotes.
Glass Package
The glass you choose affects both comfort and price. Double-pane with Low-E coatings is a common standard. Triple pane windows add a third layer of glass and a second sealed space, which helps keep rooms warmer, reduces condensation and softens outside noise. That upgrade usually adds to the cost of a window.
Window Size and Number of Openings
Larger windows use more material and glass, and they're heavier to handle, so they cost more. The number of openings matters too. A bigger project spreads certain costs, such as measuring, delivery and project setup, across more windows.
Installation Method
How the window is installed changes the price. A retrofit installation keeps the existing frame in place and is usually the faster, more affordable route. Brick-to-brick installation removes the old window and frame completely, which costs more but allows a full inspection of the opening and an upgrade to the insulation around it. Our guide to retrofit vs. brick-to-brick installation explains which one suits which home.
Where You Live
Labour in the GTA tends to run about 10% to 20% higher than in smaller Ontario markets, due to strong demand and a shortage of skilled labour. Prices also vary across Canada. A project in Winnipeg, for example, is priced against local labour rates, shipping and climate needs, so figures quoted for other markets won't match what you'll see in the GTA.
Cost by Window Style and Location in the Home
Window Style
Style affects the price because it changes the hardware, the frame and the amount of work involved. In general:
Picture and fixed windows don't open, so they have no moving parts and are usually the most affordable per size.
Sliders and hoppers (common for basements) are simple and cost-effective, and basement windows tend to be smaller.
Casement windows crank open and seal tightly, and their hardware adds to the cost.
Bay and bow windows are the largest jump. A three-window bay often starts at around $3,000 or more, because it combines several units with a projecting frame and added structure.
Front Window vs. Back Window
Homeowners often ask whether replacing a front window costs more than a rear one. It doesn't. There's no separate pricing by which side of the house a window faces. What matters is the size, the style and how easy it is to reach. A second-storey window or one with limited access can take more time to install than a ground-floor window of the same size.
Single Window vs. Whole House
Project | Typical installed cost |
One standard window | $600 to $1,800+ |
Three-window bay | $3,000+ |
Whole three-bedroom house (15 to 20 windows) | $12,000 to $25,000+ |
These are general ranges, not quotes. Your price depends on the materials, glass, sizes and installation method you choose.
How to Budget Smart and Get an Accurate Quote
Why Cost Calculators Only Go So Far
Online cost calculators can give you a rough idea, but they can't see your home. True pricing depends on the actual openings, the condition of your existing frames, access, and the products you choose. The most reliable number comes from an in-home assessment. Request a free quote and we'll measure, review your options, and give you a clear written price.
Financing
If a large upfront payment is the hurdle, GEM offers financing through Financeit, including 0% interest for up to 6 months with a 5% deposit on qualifying purchases, so you don't need to cover the full cost at once. Ask our team about eligibility when you book.
Ways to Manage the Cost
Bundle your windows into one project. Larger projects can be more efficient to measure, order and install.
Plan outside the busiest season. Fall and winter scheduling can be easier to arrange than the spring rush.
Be cautious of very low bids. A price that's far below the rest may reflect lower-grade products, a rushed installation, or costs added later. Compare quotes that include the same products, the same installation method and the same scope.
Let us value engineer your configuration. Our sales team can work through your window configurations to find the most cost-effective and visually appealing combination for your home, so you're not paying for features that don't add value.
Window Replacement Cost FAQs
How much does it cost to replace windows in Ontario?
Roughly $600 to $1,800 or more per window, installed, including the unit, labour, removal and basic trim. The final price depends on material, glass, size, style and installation method.
How much does it cost to replace the windows in a 3-bedroom house?
A typical three-bedroom home has 15 to 20 windows, and a full replacement commonly falls between $12,000 and $25,000 or more.
Does a front window cost more to replace than a back window?
No. Cost depends on size, style and how easy the window is to access, not on which side of the house it's on.
Are window cost calculators accurate?
An in-home assessment is the only way to get a price based on your actual windows and openings.
Get a Clear Number for Your Home
Window replacement is a big decision, and the right price comes from looking at your actual windows. With over 60 years of experience serving Toronto and the GTA, our team will walk you through your options and give you a straightforward quote.
Comments