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

Most likely yes. Hvac replacement or installation usually requires a permit in Georgia. Confirm the specifics with Warner Robins.

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. Houston County's own permitting office is the Houston County Building Inspection and Planning and Zoning office, reachable on 478-542-2018 at https://www.houstoncountyga.gov/business/building-inspection.cms. 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. The Warner Robins Building Inspections Department acts as the mechanical and gas inspection office under Code sections 6-177 and 6-192. The city fee schedule in Code section 6-213 lists changing out an old heating and air system at no charge and adding a system to an existing home at $30. An electrical circuit change for the new unit is electrical work that needs a city electrical permit under section 6-101.