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🪟 Window / Door Replacement permit checklist

Replacing existing windows or exterior doors in the same opening (in-kind swap). Print this sheet and take it to your building department.

Typical requirement. Across 50 states we reviewed, about 100% require a permit for window / door replacement (verdict: conditional; typical go / no-go: allowed). Common exemption: Same-size, in-kind replacement is generally exempt. Your city or county sets the exact rule — confirm with the permit checker.

For your specific project, use the permit checker, then open your county permit portal to start the application.

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