Enter a realistic size
Use the measurement or task count that most closely matches the work contractors will price.
Exterior cost planner
Window Replacement Cost Calculator
Estimate installed replacement windows by count and quality level. Adjust the project, market, finish, and complexity to build a useful early budget.
Planning dataUpdated July 2026US national ranges
01
Describe the project
Use approximate measurements for early planning. You can print a revised estimate later.
What this estimate assumes
- Custom sizes, rot repair, and historic openings increase costs.
- Rates assume standard replacement rather than new-construction openings.
Planning guide
Understand the range before you request quotes.
Estimate installed replacement windows by count, market, product quality, opening complexity, and contingency.
Example project12 windowsDefault calculator starting point
Base unit range$550–$1,800Before market, finish, complexity, and contingency
Example planning range$7,260–$23,760US average, standard finish, typical complexity, 10% contingency
How to use the calculator
Turn a rough idea into a quote-ready starting point.
This is a planning tool, not a contractor bid. Use the range to define scope, compare like-for-like proposals, and identify the questions that could materially change the final price.
Adjust the project conditions
Choose the local cost level, finish, complexity, and contingency that reflect your actual plan.
Compare complete scopes
Enter contractor quotes and check whether each proposal includes the same materials, labor, permits, and cleanup.
What the planning range includes
- Typical replacement-window units
- Standard removal and installation labor
- Basic flashing, sealing, and trim touch-up
- Permit allowance and planning contingency
What can move the price
- Window material and performance package
- Opening size and custom shapes
- Access and story height
- Rot, trim, and exterior finish repairs
Items that often sit outside the first estimate
- Historic-district requirements
- New-construction opening changes
- Lead-safe work in older homes
Common questions
Window Replacement cost calculator FAQ
How accurate is this estimate?
It is an early planning range based on project size and broad US cost factors. Actual quotes depend on local labor, exact specifications, access, existing conditions, permits, and contractor availability.
Why is the range wide?
The low and high values intentionally cover meaningful differences in finish quality, complexity, market pricing, and hidden scope. Narrow it by defining materials and included work before requesting bids.
How should I compare contractor quotes?
Compare written scope, quantities, product allowances, demolition, cleanup, permits, schedule, warranty, payment terms, and change-order rules—not only the total price.
Continue planning
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