Do I need a permit for hvac replacement or installation in Douglasville?

Yes. In Georgia, hvac replacement or installation generally requires a permit, and Douglasville is no exception.

Replacing a furnace, air handler, or condenser generally requires a mechanical permit in Georgia jurisdictions even when it is a like-for-like swap. Gas or electrical connections may require coordinated inspections; use a licensed mechanical contractor where required. Douglas County's own permitting office is the Douglas County Building Permits and Inspections, reachable on 770-920-7201 at https://www.douglascountyga.gov/224/Building-Permits-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. A change-out is normally a mechanical permit, and gas fired equipment usually adds a second permit and a pressure test. UDC Sec. 8.04(E)(1) requires a permit to install, replace, or alter a mechanical system. Only portable units and replacement parts that do not alter the equipment's approval are exempt. Homeowners can apply in the BS&A portal without a contractor account for heating and cooling equipment installation, water heater replacements, and electrical service reconnects by checking the box certifying they are the homeowner. In an emergency replacement, the permit application must be submitted by the next working business day under UDC Sec. 8.04(E)(3).