Georgia HVAC Contractor Licensing

Georgia requires heating, ventilation, and air conditioning contractors to hold a valid license before performing mechanical work on residential or commercial properties. This page covers the licensing structure administered by the Georgia Secretary of State's Division of Professional Licensing, including license classifications, examination requirements, the permitting framework, and the boundaries between licensed and unlicensed scope of work. Understanding these requirements is essential for contractors seeking to operate legally in the state and for property owners verifying contractor credentials.

Definition and scope

HVAC contractor licensing in Georgia falls under the jurisdiction of the Georgia Secretary of State, Division of Professional Licensing, which administers mechanical contractor licenses through authority granted under Georgia Code Title 43, Chapter 14 — the Georgia State Licensing Board for Residential and General Contractors (GCEB) alongside the separate Conditioned Air Contractor licensing framework. The Georgia Construction Industry Licensing Board (GCILB) oversees the classification of specialty mechanical trades, including conditioned air contractors who install, alter, repair, or maintain HVAC systems.

The scope of HVAC licensing covers mechanical systems that condition interior air, including:

1. Forced-air heating and cooling systems
2. Heat pump systems (air-source and geothermal)
3. Ductwork design, fabrication, and installation
4. Refrigerant handling and recovery equipment
5. Ventilation and exhaust systems
6. Boilers and radiant heating systems where classified under mechanical scope
7. Energy recovery ventilation (ERV) and heat recovery ventilation (HRV) units

Refrigerant handling requires separate federal certification under EPA Section 608 of the Clean Air Act, which mandates that technicians working with regulated refrigerants hold certification from an EPA-approved testing organization. Georgia's state license and EPA Section 608 certification are independent requirements — both must be satisfied for legal operation.

Scope limitations are noted below under the dedicated scope boundary paragraph.

How it works

Georgia classifies HVAC contractors primarily as Conditioned Air Contractors under the GCILB. The licensing process follows a structured sequence:

1. Application submission — Candidates submit an application to the Georgia Secretary of State Professional Licensing portal along with proof of insurance and documentation of qualifying experience.
2. Experience verification — Applicants must demonstrate a minimum of 3 years of documented experience in the conditioned air trade, or an equivalent combination of education and field experience accepted by the Board.
3. Examination — Candidates must pass a Board-approved trade examination. Georgia uses examinations administered through PSI Exams, covering HVAC theory, load calculations, code compliance, and safety standards.
4. Insurance requirements — Licensees must carry liability insurance meeting the GCILB's minimum thresholds. General liability and workers' compensation coverage obligations align with standards discussed in Georgia Construction Insurance Requirements.
5. License issuance — Upon passing the examination and confirming insurance, the Board issues the Conditioned Air Contractor license, which must be renewed biennially.
6. Continuing education — Georgia requires licensed conditioned air contractors to complete continuing education hours as a condition of renewal, addressed in Georgia Construction Continuing Education.

Work performed under a Conditioned Air Contractor license must comply with the 2021 International Mechanical Code (IMC) as adopted in Georgia, as well as the 2021 International Energy Conservation Code (IECC), which governs equipment efficiency standards and duct insulation requirements. Georgia's code adoption status is detailed at Georgia Construction Code Adoption.

All HVAC installation work requiring permits must be inspected by the local Authority Having Jurisdiction (AHJ). Permit obligations, submission procedures, and inspection scheduling vary by county and municipality, as outlined in Georgia Building Permit Process.

Common scenarios

Residential HVAC replacement — Replacing an existing split-system air conditioner or furnace in a single-family home requires both a Conditioned Air Contractor license and a mechanical permit from the local building department. This applies even to like-for-like equipment swaps, because Georgia's adopted mechanical code requires inspection to verify refrigerant charge, electrical connections, and duct integrity.

New commercial construction — HVAC installation in commercial buildings requires coordination with the general contractor and compliance with the 2021 IMC and ASHRAE Standard 62.1-2022 (ventilation for acceptable indoor air quality). On public construction projects, the subcontractor relationship and bonding obligations intersect with rules covered under Georgia Construction Bonding Requirements.

Geothermal heat pump installation — Ground-source heat pump systems involve both mechanical licensing (conditioned air) and potentially well-drilling permits under Georgia's Environmental Protection Division (EPD). This dual-permit scenario is a common compliance gap for contractors transitioning from conventional HVAC work.

Unlicensed maintenance work — Routine filter changes and thermostat replacement by property owners or uncertified technicians exist in a gray zone. However, any work involving refrigerant recovery, electrical connections to HVAC equipment, or ductwork alteration requires a licensed contractor. The GCILB enforces unlicensed practice provisions under Georgia Code Title 43.

Ductless mini-split installation — Ductless systems require conditioned air licensure in Georgia. A contractor holding only an electrical license — covered separately at Georgia Electrical Contractor Licensing — cannot perform the refrigerant and mechanical portions of a mini-split installation without the appropriate HVAC credential.

Decision boundaries

The boundary between HVAC licensing and adjacent trade licenses in Georgia is defined by the type of work performed, not the equipment involved.

A Conditioned Air Contractor license does not authorize electrical panel work, gas line installation beyond the appliance connection point, or structural modifications to accommodate equipment. Projects requiring multiple trade scopes require either separate licensed subcontractors or a contractor holding dual licenses.

Scope, coverage, and limitations: This page covers licensing requirements applicable to HVAC contractors operating within the State of Georgia under GCILB jurisdiction. It does not apply to HVAC work performed on federal installations (such as military bases) regulated by federal agencies, or to equipment manufacturing and testing conducted outside the construction context. Interstate contractors must obtain Georgia licensure even if licensed in neighboring states — Georgia does not maintain reciprocal licensing agreements with other states for conditioned air contractors as of the most recent GCILB policy guidance. Counties and municipalities may impose additional permitting fees and local code amendments beyond state minimums; those local requirements are not exhaustively addressed here. For the broader landscape of Georgia specialty trade classifications, see Georgia Specialty Contractor Classifications.

References

• Georgia Secretary of State, Division of Professional Licensing
• Georgia Construction Industry Licensing Board (GCILB)
• EPA Section 608 Refrigerant Management Program
• 2021 International Mechanical Code (IMC) — International Code Council
• 2021 International Energy Conservation Code (IECC) — International Code Council
• ASHRAE Standard 62.1-2022 — Ventilation for Acceptable Indoor Air Quality
• Georgia Code Title 43, Chapter 14 — Professions and Businesses
• Georgia Environmental Protection Division