Professional Window Replacement
Window Replacement in GTA and Southern Ontario
Window Experts supplies and installs ENERGY STAR-rated vinyl replacement windows across Newmarket and the GTA, with double or triple glazing, our own installation crew and a free in-home estimate.
Residential Window Replacement Services
Window Experts handles your window replacement from start to finish. We supply and install the windows ourselves, so every project uses products we stand behind. We take custom measurements, remove your old windows, and install the new ones.
We supply and install vinyl (uPVC) windows from Vinyl Pro in double or triple glazing. During your consultation, we inspect your existing windows, walk you through your options, and provide an estimate based on your home.
Our Replacement Window Products
Our vinyl replacement windows are custom-sized to your existing openings. The right style depends on the room, how you want the window to open and how much ventilation and light you need.
Casement Windows
Awning Windows
Sliding Windows
Single-Hung and Double-Hung Windows
Picture and Fixed Windows
Bay and Bow Windows
Double or Triple Glazing: Which Should You Choose?
Every window we supply and install can come with double or triple glazing, and the right call depends on what you’re hoping to fix. Double-glazed windows use two panes of glass with one sealed, argon-filled gap between them. Triple-glazed windows add a third pane and a second gap, which can mean better insulation, less condensation, and quieter rooms if outside noise is a problem for you.
The extra pane isn’t automatic, though, since performance also depends on the frame, the coating, and how well the window is installed. We’ll walk you through both options at your consultation, including the real price difference, so you can choose based on your home and budget rather than pane count alone.
How Much Does Window Replacement Cost?
Expect to pay around $600 to $1,200 installed for a standard replacement window in Newmarket and across the GTA. Prices go up with a larger window, an upgraded glass package, a custom configuration, or a bay or bow unit. Here’s how Window Experts pricing breaks down by project and window type:
| Window Type / Project | Price Range |
|---|---|
| Standard replacement window | $600–$1,200+ |
| Larger or upgraded window | $800–$3,500+ |
| Casement window | $750–$1,700 |
| Awning window | $750–$1,700 |
| Sliding window | $500–$1,500 |
| Single or double-hung window | $500–$1,500 |
| Picture or fixed window | $600–$4,500 |
| Bay or bow window | $2,500–$8,000+ |
| 10-window project | $8,000–$15,000+ |
| Larger whole-home project | $12,000–$40,000+ |
Your final quote depends on the number and size of your windows, the product configuration, double or triple glazing, and the condition of your existing openings. For a full breakdown, see our 2026 Window Replacement Cost Guide.
Your Window Replacement Team in Newmarket & the GTA
Window Experts supplies and installs residential replacement windows throughout Newmarket, York Region and the GTA.
Depending on the product you choose, your windows are covered by either a lifetime warranty or a 25-year warranty. Your written estimate confirms coverage for your selected windows, and we provide warranty certificates.
You can see product samples, discuss installation requirements and compare options before you approve the work. Financing is available, and we'll go over current terms with your estimate.
More Window and Door Services
Window Replacement Near You
Window Experts is based in Newmarket, with crews working across York Region, the GTA and Southern Ontario. Find your community below.
NewmarketWindow Replacement FAQs
How much does window replacement cost in Ontario?
A standard replacement window typically costs $600 to $1,200 or more, installed. A 10-window project generally runs $8,000 to $15,000 or more. Your price depends on window sizes, styles, glazing and the condition of your existing openings. We give you an exact quote after your in-home consultation.
Do you supply and install the windows?
Yes. We supply Vinyl-Pro vinyl replacement windows and install them with our own full-time crew.
What warranty comes with your replacement windows?
It depends on the product. Our windows come with either a lifetime warranty or a 25-year warranty, and we confirm which applies to your selected windows in your written estimate. The full terms are included in your agreement.
Do you offer double and triple-glazed windows?
Yes, both. At your consultation, we'll compare their energy performance and pricing so you can choose before you order.
How long does window replacement take?
Most homes are completed in 1 to 2 days, depending on how many windows you're replacing. We confirm your installation schedule once your measurements and window selections are finalized.
Blog Roll
Window Replacement Cost in Ontario: 2026 Pricing Guide
How Often Do You Need to Replace Windows?
Energy-Efficient Windows in Canada: What Actually Makes a Window Energy Efficient?
Get a Free Estimate for Window Replacement
We’ll measure your openings, walk you through double or triple glazing, and give you a written estimate before you approve the work.