Window Replacement Cost Calculator 2026 — Free Estimate Tool
Calculate window replacement costs for 2026. Get instant estimates for vinyl, wood, and fiberglass windows by style and quantity with installation included.
Window Replacement Cost Calculator
1–30 windows
Estimated Total Cost
$5,000
Includes windows and professional installation
Cost per window
$500
* Costs include standard installation. Structural modifications, custom sizes, or historic windows add cost. Bay windows are 2.5x standard pricing.
How to Use This Window Cost Calculator
- Enter the number of windows to replace
- Select your preferred window style
- Choose your frame material (vinyl, wood, or fiberglass)
- View per-window and total project cost estimates
Average Window Replacement Costs in 2026
By Frame Material (installed, per window)
| Material | Double-Hung | Casement | Bay Window |
|---|---|---|---|
| Vinyl | $300–$700 | $350–$750 | $900–$2,200 |
| Wood | $600–$1,200 | $700–$1,400 | $1,500–$4,500 |
| Fiberglass | $400–$900 | $450–$1,000 | $1,200–$3,000 |
By Project Size
- 5 windows: $1,500–$6,000
- 10 windows: $3,000–$12,000
- 20 windows: $6,000–$24,000
Choosing the Right Replacement Windows
Vinyl offers the best value — energy efficient, low maintenance, and available in many styles. Wood provides premium aesthetics and can be painted, but requires maintenance. Fiberglass offers superior strength and minimal expansion/contraction, ideal for extreme climates.
Related Articles
- Window Replacement Cost Guide — full breakdown of window types, energy savings, and contractor tips
- Home Renovation ROI Guide 2026 — window replacement returns 72% plus ongoing energy savings
- Green Renovation Guide 2026 — Energy Star windows can cut heating and cooling costs by 12–24%
Frequently Asked Questions
How much does window replacement cost per window in 2026?
Window replacement costs $300–$1,200 per window installed in 2026 depending on frame material and style. Vinyl windows average $300–$700 each. Wood windows cost $600–$1,200 each. Fiberglass windows run $400–$900 each. Bay windows cost 2–3x standard window pricing.
How long do replacement windows last?
Vinyl windows last 20–40 years. Fiberglass windows last 30–50 years. Wood windows last 30–50+ years with proper maintenance. All quality windows come with manufacturer warranties of 10–25 years on materials and seals.
Do new windows save money on energy bills?
Yes. Replacing single-pane windows with Energy Star double-pane windows can reduce heating and cooling costs by 12–24%. In extreme climates, the savings are more pronounced. Triple-pane windows add further efficiency in very cold regions.
Should I replace all windows at once or one at a time?
Replacing all windows at once typically saves 10–20% through bulk contractor pricing, minimizes disruption, and ensures consistent appearance. If budget is a constraint, prioritize south and west-facing windows (most sun exposure) and the largest windows first.
What is the difference between insert and full-frame replacement windows?
Insert (pocket) replacement windows fit inside the existing frame, costing $300–$800 per window. Full-frame replacement removes all trim and framing, costing $500–$1,500 per window but allowing complete inspection and upgrade of the rough opening, insulation, and flashing.