Calculator
Window Replacement Cost Calculator
Price a window replacement by count, frame material and glass package — per window and whole house.
Model reviewed August 2026
Select a state to re-price the estimate with local labor and material costs.
Estimated total cost
$7,726 – $10,975
Installed, all windows
- Cost per window
- $629 – $894
- Windows priced
- 12
- Permit
- $200
Estimates only. Local pricing, site conditions and code requirements change the real number.
Price this job in your state
This page uses the national average. Pick your state for the same tool re-priced with local labor, material and permit-fee indexes.
The formula
Cost = windows x (unit price x frame multiplier x glass multiplier) + install type + permit
Insert replacements reuse the existing frame and are cheapest. Full-frame replacement removes the frame down to the studs and adds roughly 25–40% per opening.
Worked example
Replacing 12 vinyl double-hung windows with low-E double glazing runs about $9,000 to $13,000 installed.
Frequently asked questions
How much does it cost to replace a window?
Most standard replacement windows run $450 to $1,200 installed per opening in 2026. Large, custom-shaped or impact-rated units cost considerably more.
Is full-frame or insert replacement better?
Insert replacement is cheaper and faster when the existing frame is sound. If there is rot, water intrusion or you want a larger glass area, full-frame is the right call.
Sources
Sources & verification
Model vintage August 2026. The links above are the issuing agencies' own pages — we publish them so you can confirm the current rule yourself, not as evidence that each fact on this page was re-checked with them today. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing, not quotes. Permit rules change; confirm with the building department before starting work.