Window Replacement Cost
What Does Window Replacement
Really Cost in Illinois?
Most Illinois homeowners pay $300 to $1,200 per window installed, or $6,000 to $16,000 for a typical whole-home project. Here is how the price breaks down by material and project size.
Get My Free Estimate$300 to $1,200
Typical price per window, installed
$6,000 to $16,000
Typical 10-15 window whole-home project
1-3 days
Typical install time
25 yr
Typical warranty
By Project Size
How Many Windows Are You Replacing?
Estimated Illinois ranges, installed. Your real number depends on window style, material, and glass package.
A few windows
1-4 windows
$1,200 to $4,800
Replacing older or damaged windows in one or two rooms.
Whole-home
10-15 windows
$6,000 to $16,000
The most common Illinois project: replacing every window in the house at once.
Large home
16+ windows
$16,000 and up
Larger homes, bay/picture windows, or upgraded glass packages.
By Material
Window Material Cost Comparison
| Material | Typical Price Per Window | Notes |
|---|---|---|
| Vinyl | $300 to $900 | Most popular in Illinois: low maintenance, best value |
| Composite | $400 to $1,300 | Blends vinyl-level upkeep with more rigidity |
| Fiberglass | $500 to $1,500 | Handles Illinois temperature swings well, very durable |
| Wood | $1,100 to $2,200+ | Classic look, highest cost and maintenance |
What Drives It
Four Things That Move the Price
Window style
Double-hung and sliding windows are the most affordable styles. Casement, bay, and picture windows cost more due to hardware and glass area.
Glass package
Double-pane is standard; triple-pane and low-E coatings add cost but cut heating and cooling losses further, especially in Illinois winters.
Frame condition
A full-frame replacement (removing the old frame down to the studs) costs more than an insert replacement into a sound existing frame.
How many at once
Doing all your windows in one project is almost always cheaper per window than replacing them a few at a time over several years.
Window Cost Data Sources
Independent pricing guides that inform the ranges above:
FAQ
Cost Questions
How much does window replacement cost in Illinois?
Most Illinois homeowners pay $300 to $1,200 per window installed, with a typical whole-home project of 10-15 windows running $6,000 to $16,000. Your free in-home estimate gives exact pricing based on your home's actual window count, style, and condition.
What window material is the best value?
Vinyl windows typically run $300 to $900 installed and are the most common choice in Illinois for their low maintenance and strong energy performance. Fiberglass costs more but handles temperature swings especially well, which matters through Illinois winters and summers.
Is it cheaper to replace all my windows at once?
Usually, yes. Doing a whole-home project in one visit spreads the crew and equipment cost across more windows, which typically brings the per-window price down compared to replacing a few windows at a time over several years.
Do triple-pane windows cost much more than double-pane?
Triple-pane windows add cost over standard double-pane, but the difference is usually a smaller share of the total project than the window style or material choice. Your estimate shows the exact difference for your specific windows.
Are there rebates that lower the cost?
The federal window tax credit (Section 25C) ended for windows installed after December 31, 2025, and ComEd does not currently list a residential window rebate. Rebate programs change every year, so we check what is available for your home during your free estimate.
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See Your Real Number
Our free in-home estimate measures your actual windows to show exact pricing by style, material, and glass package. No commitment required.
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