Do I need an HVAC permit in Georgia?

In most of Georgia, yes. Permits are issued locally, so the answer comes from your Georgia city or county rather than a single statewide rule. Of the 4 Georgia jurisdictions we have verified for HVAC work, 3 require a permit outright, 1 depends on the size or scope of the job, and 0 require none.

Is there an HVAC permit exemption in Georgia?

1 of the 4 Georgia jurisdictions we cover sets a threshold rather than a flat rule, so the same job can be exempt in one Georgia county and permitted in the next. The table above lists each Georgia jurisdiction's published threshold in its own words, with the source and the date we verified it.

Georgia

Do you need an HVAC permit in Georgia?

By Mario Bailey Last checked 16 Aug 2026

Always required: 3; of 4 jurisdictions
Conditional: 1; depends on size or scope
Not required: 0; exempt outright

HVAC Permit rules nationwide, beyond Georgia.

A technician inspects an outdoor air-conditioning condenser beside a house

Requirements and size thresholds for HVAC permits vary by locality. The table below compares what each Georgia county or city requires. Always confirm with the local office before starting.

Comparing states? See HVAC permit rules across every locality we cover.

The application steps and inspection sequence for HVAC permits come from the model code rather than from Georgia law, so they read the same wherever you build. We keep that walkthrough in one place: how an HVAC permit application and its inspections work, start to finish. What changes between Georgia jurisdictions is below: who requires a permit, what they charge, and which office you file with.

Swipe sideways to see thresholds and confidence.

Locality	Permit required?	Typical threshold	Confidence
Atlanta	Yes	Any size	Confirmed on official page
Cobb County	Yes	Any size	Confirmed on official page
DeKalb County	Yes	Any size	Confirmed on official page
Gwinnett County	Conditional	Before installing, altering, repairing, removing, converting or replacing a fixed...	Confirmed on official page
No localities match your filter.

What an HVAC permit costs in Georgia

3 Georgia jurisdictions we cover publish a fee figure for this work. Each line is quoted from that office's own schedule and linked to its citation. The figures are not comparable to one another: some are flat minimums, some a percentage of job value, some charged per fixture, so what you pay depends on which schedule applies and on your job's valuation.

Cobb County

HVAC and mechanical work is billed as an $80 trade permit under the Cobb County Building Permit Fee Schedule effective July 1, 2024, plus the $15 technology fee that applies to all permit types.

last checked 6 Jul 2026

DeKalb County

Mechanical Permit Application (revised 07/09/2025): "Fee Schedule: MINIMUM FEE $120. Additional $200 for Fire Suppression Systems (Fire Review & Inspection Fee)" Per item charges include A/C and refrigeration appliances up to 10 tons at $25.00 each, 11 to 30 tons at $35.00, boilers and heating appliances up to 300,000 BTU input at $25.00 each, duct work installation per system at $25.00, gas line per connection at $25.00 and residential vent fans at $20.00. Mechanical re-inspection fees are $25.00 for the first, $50.00 for the second and $100.00 for the third.

last checked 16 Aug 2026

Gwinnett County

Planning and Development Fee Schedule, "Building Permit Fees (Effective July 1, 2024)", footer "Revised 05/23/2024". The schedule has no separate mechanical trade permit line; the department's "Regulatory Requirements for Residential Permits" lists a combined "Mechanical, Electrical, Plumbing" application type priced at "$0.006 x Value of Construction", which predates the July 1, 2024 schedule. A standalone residential change-out under $75,000 falls in the "Residential Renovation Permit | $125" band. Confirm with the Permits Section at 678-518-6020.

last checked 16 Aug 2026

Jurisdictions not listed publish no dollar figure we could quote. Absence does not mean a permit is free.

Common questions about HVAC permits in Georgia

Do I need an HVAC permit in Georgia?: In most of Georgia, yes. Permits are issued locally, so the answer comes from your Georgia city or county rather than a single statewide rule. Of the 4 Georgia jurisdictions we have verified for HVAC work, 3 require a permit outright, 1 depends on the size or scope of the job, and 0 require none.
Is there an HVAC permit exemption in Georgia?: 1 of the 4 Georgia jurisdictions we cover sets a threshold rather than a flat rule, so the same job can be exempt in one Georgia county and permitted in the next. The table above lists each Georgia jurisdiction's published threshold in its own words, with the source and the date we verified it.

Do you need an HVAC permit in Georgia?

What an HVAC permit costs in Georgia

Common questions about HVAC permits in Georgia

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