Does Window Replacement Require a Permit?

Last reviewed: September 2026. Verify codes, manufacturer specs, and rebates before acting.

Permit requirements vary by city, window dimensions, installation method, and safety-glazing rules. Many retrofits are exempt, but full-frame replacements and size changes often require permits.

Confirm requirements with your city's building department and the licensed contractor before starting work. See our city pages for local permit contacts.