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Window Replacement Cost Guide
Updated 2026 · National averages
National Average
$3,000 – $20,000
per project
Window replacement costs $300–$1,200 per window installed, or $3,000–$20,000 for a full home re-window.
Overview
The average cost to replace windows is $300–$1,200 per window installed, including labor. A typical home with 10 windows runs $4,000–$12,000. Material choice (vinyl vs. fiberglass vs. wood) and glass package (double vs. triple pane, Low-E coating) are the biggest cost drivers. New windows typically reduce energy bills 10–25% and qualify for the 30% federal tax credit up to $600/year.
Cost by Scope
Budget (5 windows)
Vinyl double-pane replacements. Good value, 20–25 year lifespan.
$1,500–$4,000
Mid-range (10 windows)
Fiberglass or premium vinyl with Low-E glass. Best value for most homeowners.
$5,000–$12,000
Premium (full home)
Andersen/Pella fiberglass or wood windows throughout. High-end curb appeal and longevity.
$12,000–$25,000+
What Affects the Cost
High
Frame material
Vinyl ($300–$700), fiberglass ($500–$1,300), wood ($600–$1,800), aluminum ($300–$600) per window installed.
Medium
Window style
Double-hung, casement, bay/bow, and picture windows vary in price. Bay/bow windows cost $1,500–$4,500 each.
Medium
Glass package
Double-pane standard, triple-pane adds $100–$200/window. Low-E coating ($50–$100/window) improves solar heat control.
Medium
Window size
Larger windows (picture, bay, sliding glass doors) cost proportionally more in materials and labor.
Medium
Installation complexity
Second floor or hard-to-access windows add labor cost. Structural openings require permits and framing work.
Low
Number of windows
Replacing more windows at once often lowers per-unit cost 10–15% due to economies of scale.
Medium
Brand / series
Andersen, Pella, and Marvin command premium pricing; Milgard, Simonton, and Harvey offer strong value mid-tier options.
What's Typically Included
- Window unit
- Installation labor
- Trim/casing work
- Disposal of old windows
- Basic caulking and sealing
Common Add-Ons (Not Included)
- Interior paint touchups
- Custom window treatments/blinds
- Storm windows
- Security hardware upgrades
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Frequently Asked Questions
How much can new windows save on energy bills?
ENERGY STAR certified windows reduce heating and cooling costs 10–25% compared to single-pane windows, and 7–15% compared to older double-pane windows.
Do window replacements qualify for the federal tax credit?
Yes. ENERGY STAR Most Efficient certified windows qualify for the 30% federal tax credit up to $600/year through 2032.
How long does window replacement take?
A professional crew can typically replace 10 windows in 1–2 days. There's no need to vacate your home during installation.
Vinyl vs. fiberglass windows — which is better?
Fiberglass is stronger, more dimensionally stable, and better insulating, but costs 20–40% more. Vinyl offers excellent value and low maintenance. Both can last 30+ years.
Should I replace all windows at once?
Yes, if budget allows — bulk replacement saves 10–15% per window and ensures consistent appearance. If budget is tight, prioritize the largest and most drafty windows first.