Do I need a permit for window or exterior door replacement in Brunswick?

Most likely yes. Window or exterior door replacement usually requires a permit in Georgia. Confirm the specifics with Brunswick.

Like-for-like replacement in an existing opening is often permitted more simply, but changing the opening size, adding a header, or altering egress typically requires a permit and plan detail. Bedroom windows must still meet IRC emergency escape and rescue (egress) sizing when replaced. Glynn County's own permitting office is the Glynn County Building Permitting and Inspections office, reachable on 912-554-7456 at https://www.glynncounty.org/government/departments/building-permitting-inspections. It issues permits for the unincorporated county. If your city does not run its own building department, and many smaller Georgia municipalities do not, this is the office that will handle the job. Ask whether a like-for-like swap is exempt at your address, since changing the size of an opening is structural work and is treated differently. The Brunswick Building Permit Application requires a signed and approved estimate from both the contractor and the property owner for any alteration or remodel. Renovation permits are $8 per $1,000 of contracted cost, with a $60 minimum. In the historic district, staff may approve minor rehabilitation of doors, windows, and trim that follows the design guidelines. Storm windows qualify for staff approval only if they match the historic sash and frame configuration, match the trim color, do not project past the window opening, and use clear glass.