How to Start an HVAC Business in Georgia (2026)

Last updated: April 2, 2026

Three things make Georgia a genuinely different market for HVAC contractors. First, the Georgia Construction Industry Licensing Board (GCILB) issues a state-level Conditioned Air Contractor license that is required before you can legally install, service, or repair heating and cooling systems in Georgia — this is not a local license, not optional, and not waivable. Second, Georgia’s climate creates demand that is unusually strong and year-round: Atlanta averages 4-5 months of peak cooling load, the Atlanta metro has seen relentless residential construction growth, and the high-humidity summers demand dehumidification capabilities that many northern systems simply are not designed for. Third, Georgia’s workers’ compensation threshold is 3 employees — lower than many states — meaning even a small crew triggers mandatory coverage.

This guide is organized around what is specific to Georgia. The GCILB licensing process is the centerpiece because it is the gating factor for every other step, and because the Class I vs Class II distinction, the experience documentation requirements, the PSI exam structure, and the 2024 IMC code adoption (effective January 1, 2026) are all details you cannot find in a generic HVAC guide.

HVAC Business Requirements in Georgia at a Glance

Requirement	Agency	Cost	Timeline
Conditioned Air Contractor License (Class I or II)	GA Secretary of State – Board of Conditioned Air Contractors (GCILB)	$30 application + $267 exam (PSI) + $75 license	3-6 months total (experience verification + exam prep)
EPA Section 608 Certification (Type II or Universal)	EPA-approved testing provider (federal)	$20-$150	Required before GCILB application; lifetime certification
LLC Formation (Articles of Organization)	GA Secretary of State – Corporations Division	$100 (online)	1-3 business days
General Liability Insurance	Commercial insurer (min. $500,000/occurrence per GCILB for residential)	$941-$13,000/year depending on revenue and coverage level	Required before performing installations
Commercial Auto Insurance	Commercial insurer	$1,500-$2,200/year (single vehicle)	Required for service calls
Workers’ Comp Insurance (3+ employees)	Commercial insurer; oversight by GA State Board of Workers’ Compensation	Varies by payroll and NCCI class code	Required at 3 employees; corporate officers/LLC members count
County Occupation Tax Certificate	County government (and city, if applicable)	$50-$400/year	1-2 weeks
Mechanical Permit (per installation)	County building department	Varies by county and project scope	Required before each installation; pull permit, complete work, pass inspection
License Renewal (biennial)	GA Secretary of State / GCILB	$75 on-time; $100 late	Before November 30 of odd years; 8 CE hours required

How to Start an HVAC Business in Georgia (Step by Step)

Step 1: Determine Your License Class and Document Your Experience

The Georgia Conditioned Air Contractor license is issued by the Georgia Secretary of State through the Construction Industry Licensing Board, Division of Conditioned Air Contractors (commonly called the GCILB). There is no path to legally installing or servicing HVAC systems in Georgia without this license. There are two classes:

Class I — Restricted

Covers heating and cooling systems up to 175,000 BTU heating / 60,000 BTU (5 tons) cooling. This is primarily residential work. Total experience required: 4 years, structured as:

• 2 years as lead mechanic — hands-on installation and repair work
• 1 year as service technician or service supervisor — must hold EPA Section 608 certification during this period
• 1 year of residential supervisory experience — overseeing HVAC projects
• Board-approved heat loss, heat gain, and duct design course — must be completed before applying

Class II — Unrestricted

No system size limitations. Covers commercial and industrial HVAC in addition to residential. Total experience required: 5 years, structured as:

• 2 years as lead mechanic — including at least 1 year specifically on commercial systems
• 1 year as service technician or service supervisor — must hold EPA Section 608 certification during this period
• 2 years of commercial supervisory experience — overseeing commercial or industrial HVAC projects
• Board-approved heat loss, heat gain, and duct design course — must be completed before applying

Start documenting now. The Board requires detailed, verifiable experience records — employer names, addresses, dates of employment, specific roles held, and description of the scope of work performed at each stage. This documentation is the most common source of application delays. Keep payroll records, W-2s, and reference letters from supervisors throughout your career.

Technical school credit: Completion of a diploma program in engineering or engineering technology from an accredited technical school may be credited toward up to 2 years of the experience requirement for a Class I license. Verify with the GCILB whether your specific program qualifies.

Step 2: Get EPA Section 608 Certification

EPA 608 (Type II or Universal) is a federal requirement for anyone who purchases or handles refrigerants, and Georgia requires it as a condition of the Conditioned Air Contractor license application. One sentence is enough for this item: get Universal certification from any EPA-approved provider for $20-$150, it never expires, and you need it before submitting your GCILB application.

Step 3: Complete a Board-Approved Duct Design Course

Both Class I and Class II applicants must complete a Board-approved heat loss, heat gain, and duct design course before applying. This is Georgia-specific — not required in all states. The Board maintains a list of approved providers. Verify current approved courses at sos.ga.gov or by calling the Division of Conditioned Air Contractors at (478) 207-2440.

Step 4: Get Three Notarized Professional References

Georgia requires three notarized professional references from individuals who worked directly with you and can verify your experience. Acceptable reference sources:

• Licensed Conditioned Air Contractors
• Licensed architects
• Professional engineers
• City or county inspectors

References must be notarized — standard business letters are not accepted. Begin collecting these early, as tracking down past supervisors and getting documents notarized takes more time than most applicants expect.

Step 5: Pass the PSI Licensing Exam

Georgia’s Conditioned Air Contractor exam is administered by PSI at testing centers across the state. Here are the exact details:

• Format: 120 questions in 2 parts (open book)
• Time allowed: 7 hours total
• Passing score: 70%
• Exam fee: $267 (paid to PSI)
• 2026 code update: Starting May 1, 2026, the exam is based on the 2024 editions of the International Fuel Gas Code (IFGC) and International Mechanical Code (IMC), which is the same code edition Georgia adopted statewide effective January 1, 2026. Make sure your study materials are current — prep materials for the 2018 or 2021 code editions will not fully align with the current exam.

Most candidates spend 2-4 months preparing. Exam prep courses are available from Georgia-specific providers including Georgia License Exam Company (GLEC), AtHomePrep, and ExamPrep.org. You can retake the exam if you do not pass on the first attempt.

Step 6: Apply for Your Conditioned Air Contractor License Through GOALS

Once you have your PSI exam scores, EPA certificate, experience documentation, notarized references, and duct design course certificate, submit your application through the GOALS portal (Georgia Online Access to Licensing Services) at the Georgia Secretary of State’s website.

Fee	Amount	Notes
Application fee	$30	Non-refundable
License fee (paid after approval)	$75	Two-year license period
PSI exam fee (paid separately to PSI)	$267	Pay when scheduling exam

GCILB contact information:
Division of Conditioned Air Contractors
3920 Arkwright Road, Suite 195, Macon, GA 31210
Phone: (478) 207-2440
Web: sos.ga.gov

The Secretary of State’s office also maintains a step-by-step How-to Guide for Conditioned Air Contractor licensing with current application checklists.

Step 7: Form Your Georgia LLC

File Articles of Organization online through the Georgia Secretary of State eCorp portal. Cost: $100. Processing: 1-3 business days online. Your LLC name must include “LLC” or “Limited Liability Company” and must be distinguishable from existing Georgia entities.

Annual Registration: Georgia LLCs file annually by January 1. As of September 2025, the fee is $50 plus a $10 service fee per year. Failure to file leads to administrative dissolution. Get your free federal EIN immediately at IRS.gov.

Step 8: Get Insurance

General Liability Insurance

Georgia’s GCILB requires proof of general liability insurance with a minimum of $500,000 per occurrence for residential Conditioned Air Contractor license applicants. The industry standard is $1 million per occurrence / $2 million aggregate. Expected cost for small HVAC contractors in Georgia:

• Small operator (under $500K annual revenue): approximately $941-$1,425/year
• Larger operation ($500K+ revenue): premiums typically run 1.3%-2.6% of annual gross revenue
• Commercial customers and general contractors in Atlanta and major Georgia markets routinely require proof of at least $1M/$2M coverage before engaging a subcontractor

Commercial Auto Insurance

Service vans and trucks transporting tools and equipment to job sites require commercial auto coverage. Personal auto policies exclude business use. Expected cost: $1,500-$2,200/year per vehicle for a single-vehicle small operation.

Workers’ Compensation Insurance

Georgia requires workers’ compensation once you have 3 or more employees. This is a critical threshold to understand for HVAC contractors:

• Part-time and seasonal workers count toward the threshold
• Corporate officers and LLC members count toward the 3-employee threshold in certain business structures
• Even a sole operator who hires one part-time employee and has a corporate officer may reach 3 total
• Georgia’s 3-employee threshold is more aggressive than states like Florida, which requires workers’ comp for construction trades at 1 employee
• HVAC work carries significant injury risk — even below the mandatory threshold, coverage is strongly advisable

Georgia workers’ comp is administered by the Georgia State Board of Workers’ Compensation. New employers in Georgia pay a state unemployment (SUTA) rate of 2.7% for the first 36 months, on a taxable wage base of $9,500 per employee.

Step 9: Get Your County Occupation Tax Certificate and Pull Mechanical Permits

County Occupation Tax Certificate

Georgia does not have a statewide general business license. Instead, you need an occupation tax certificate from your county and, if you operate within an incorporated city, a city occupation tax certificate as well. Cost: $50-$400/year depending on your county, city, and business classification. Annual renewal.

Mechanical Permits — Required Per Installation

Georgia adopted the 2024 International Mechanical Code (IMC) with Georgia Amendments effective January 1, 2026. Under this code, a mechanical permit is required for the installation, enlargement, alteration, or repair of mechanical systems. You must pull a permit from the county building department before beginning each installation. After the work is complete, the county inspector approves the installation.

Permit fees vary by county and project scope — verify with your county building department before bidding jobs, as permit costs should be included in your customer quotes.

Local amendments: While the 2024 IMC is the statewide minimum, counties can adopt local amendments. Cobb County, Fulton County, and DeKalb County maintain their own building departments with their own permitting processes and inspection schedules. Always confirm current requirements with the specific county building department where you are installing.

A Georgia-specific amendment in the 2024 code: a temporary exemption allowing HVAC equipment to be excluded from GFCI (ground fault circuit interrupter) requirements was made permanent in the Georgia amendments. This is a practical difference from the base 2024 IMC as published by the International Code Council.

County Surety Bond (Some Counties)

No surety bond is required at the state level for Conditioned Air Contractors in Georgia. However, some individual counties require a $10,000 surety bond filed with the county probate court before issuing a local occupation tax certificate or work permit. Check with your county before assuming no bond is needed.

License Renewal and Continuing Education

Georgia Conditioned Air Contractor licenses renew biennially, before November 30 of odd years (2027, 2029, 2031, and so on).

• On-time renewal fee: $75
• Late renewal fee: $100
• Continuing education required: 8 hours per renewal cycle
• 4 hours: code changes and technical updates (critical given the January 2026 code adoption)
• 4 hours: business practices and management

Complete CE through Board-approved providers before the November 30 deadline. Given the 2024 IMC adoption in January 2026, the first renewal cycle will include exam questions on the new code, and CE providers are updating their curricula accordingly. Verify current provider approval status at sos.ga.gov.

Georgia Climate and Market Context: Why This State Earns Special Attention

HVAC demand in Georgia is driven by factors that are genuinely state-specific — not the kind of generic “warm states have high cooling demand” language that applies everywhere south of Virginia.

Extreme heat plus extreme humidity: Atlanta’s HVAC systems operate at peak cooling capacity for 4-5 months, compared to 2-3 months in the Northeast. More importantly, Atlanta’s summer humidity levels are 40-50% higher than Southern California’s, which means systems must work harder on dehumidification in addition to cooling. Systems sized purely for temperature control without adequate latent capacity (humidity removal) fail in the Georgia climate. Contractors who understand Manual J load calculations for high-latent-load environments have a meaningful technical advantage.

Year-round demand profile: Unlike northern states where HVAC service calls drop sharply from November to March, Georgia generates meaningful heating calls in winter. North Georgia mountains (Blue Ridge, Dahlonega, Ellijay) have genuine heating loads. Coastal Georgia (Savannah, Brunswick, St. Simons Island) has milder winters but aggressive cooling seasons and high-humidity environments year-round. This geographic diversity means Georgia HVAC contractors can target either or both climate profiles depending on where they base their operation.

Atlanta metro construction growth: The Atlanta metropolitan area has been one of the fastest-growing housing markets in the nation for several consecutive years. New residential construction generates new-install HVAC work — a higher-margin category than service and repair. The northern suburbs (Cherokee County, Forsyth County, Hall County) in particular have seen sustained residential development that creates ongoing demand for new installations and the service relationships that follow them.

Transition to A2L refrigerants: The industry-wide shift away from R-22 and R-410A toward A2L (mildly flammable) refrigerants like R-32 and R-454B is accelerating. EPA 608 exams since 2026 include A2L questions. Georgia contractors need to be trained on A2L handling, storage, and installation practices — this is a near-term technical differentiator as older contractors retire and new residential equipment ships exclusively with A2L refrigerants.

BLS wage context: Heating, air conditioning, and refrigeration mechanics and installers in Georgia earn above the national median for the occupation (verify current figures at Georgia Department of Labor occupational wage search). The Atlanta metro in particular commands higher wages due to cost of living and demand density. As a business owner, you benefit from both the billable rate premium and the ability to attract and retain technicians who are compensated competitively.

Cost to Start an HVAC Business in Georgia

Service-Only / Budget Startup

Item	Cost	Notes
PSI exam fee	$267	120 questions, 2 parts, 7 hours; open book
GCILB application fee	$30	Non-refundable
Conditioned Air Contractor license fee	$75	After approval; two-year period
EPA 608 certification exam	$20-$150	Federal; lifetime certification; one sentence
Board-approved duct design course	$200-$500	Required before application; Georgia-specific
LLC formation (online)	$100	One-time
Annual LLC registration	$60/year	$50 fee + $10 service fee; due January 1
County occupation tax certificate	$50-$400	Annual; county and city rates vary
General liability insurance	~$941-$1,425/year	Min. $500K/occurrence per GCILB; $1M/$2M standard
Commercial auto insurance	$1,500-$2,200/year	Single service vehicle
Basic tools and test equipment	$5,000-$10,000	Gauges, recovery unit, vacuum pump, leak detector, hand tools
Used service van or truck	$5,000-$15,000	Reliable work vehicle; used market
Working capital (first 2 months)	$2,000-$5,000	Parts, supplies, operating buffer
Estimated total: $15,000-$35,000

Full-Service Residential Operation

Item	Cost	Notes
Licensing and certifications (all fees)	$592-$922	PSI exam + application + license + EPA + duct design course
LLC formation + first-year annual registration	$160	$100 formation + $60 registration
County occupation tax certificate(s)	$50-$400	Annual; may need county + city
General liability insurance ($1M/$2M)	$1,200-$3,000/year	Higher end for full install work
Commercial auto insurance	$1,500-$2,200/year	Service vehicle
Workers’ comp insurance (if 3+ employees)	$2,000-$5,000/year	Georgia 3-employee threshold; NCCI rated
Professional tools and install equipment	$10,000-$20,000	Full install capability: brazing kit, sheet metal tools, vacuum pumps
Service vehicle (outfitted)	$10,000-$20,000	Used outfitted van or truck
Initial parts and refrigerant inventory	$2,000-$5,000	Common parts, refrigerant stock (including A2L as applicable)
Marketing, website, and branding	$1,000-$3,000	Local SEO and Google Business Profile are high-ROI in Georgia metro
Estimated total: $30,000-$58,000

Related Georgia Business Guides

• Starting a Business in Georgia: Complete Guide

← Back to all Georgia business guides

Frequently Asked Questions

What license does Georgia require for HVAC contractors?

Georgia requires a Conditioned Air Contractor license issued by the Georgia Secretary of State through the Construction Industry Licensing Board (GCILB), Division of Conditioned Air Contractors. There is no county-level workaround — this is a mandatory state license for anyone installing, servicing, or repairing HVAC systems in Georgia. There are two classes: Class I (Restricted) for residential systems up to 175,000 BTU heating / 5 tons cooling, requiring 4 years of documented experience, and Class II (Unrestricted) for all system sizes including commercial and industrial, requiring 5 years. Contact the GCILB at (478) 207-2440 or sos.ga.gov.

What does the Georgia Conditioned Air Contractor exam cover?

The exam is administered by PSI and consists of 120 questions in 2 parts, open book, with 7 hours allowed. Passing score is 70%. Exam fee is $267. The exam covers HVAC systems, load calculations, refrigeration principles, duct design, and mechanical codes. Starting May 1, 2026, the exam is based on the 2024 editions of the IFGC and IMC — the same code editions Georgia adopted statewide effective January 1, 2026. Ensure your study materials are current. Most candidates spend 2-4 months preparing.

What experience is required for a Georgia Class II (Unrestricted) HVAC license?

Class II requires 5 years of total documented experience: 2 years as a lead mechanic (including at least 1 year specifically on commercial systems), 1 year as a service technician or supervisor (holding EPA 608 during this period), and 2 years of commercial supervisory experience. You also need a Board-approved heat loss, heat gain, and duct design course completed before applying, plus 3 notarized professional references from licensed architects, engineers, county inspectors, or licensed Conditioned Air Contractors. All experience must be fully documented with verifiable employer records.

When do mechanical permits apply for HVAC work in Georgia?

Georgia adopted the 2024 International Mechanical Code (IMC) with Georgia Amendments effective January 1, 2026. Under this code, a mechanical permit is required for the installation, enlargement, alteration, or repair of mechanical systems — which includes HVAC equipment. You must pull a permit from the county building department before starting installation work, complete the installation, and pass a county inspection. Permit costs vary by county and project scope. Local governments may adopt additional amendments — verify requirements with each county’s building department where you plan to work.

Does Georgia require HVAC contractors to carry workers’ compensation?

Yes, once you have 3 or more employees, which is a lower threshold than many states. Part-time and seasonal workers count. Corporate officers and LLC members count toward the threshold in certain business structures. This means a contractor with one full-time tech, one part-time helper, and themselves structured as an LLC member may already be at 3. Georgia workers’ comp is administered by the Georgia State Board of Workers’ Compensation. Even below the mandatory threshold, HVAC work’s injury risk makes voluntary coverage strongly advisable.

How does Georgia’s climate affect HVAC business demand?

Georgia generates unusually strong, year-round HVAC demand. Atlanta HVAC systems run at peak cooling capacity for 4-5 months, longer than most northeastern markets. Georgia’s summer humidity is 40-50% higher than comparable-temperature cities in the Southwest, creating high latent load demand that goes beyond temperature control — systems must dehumidify aggressively. North Georgia generates real heating load in winter. The Atlanta metro’s sustained residential construction boom drives new-install demand. And the industry-wide shift to A2L refrigerants creates near-term demand for contractors trained on the new handling and installation requirements, since most new residential equipment now ships with A2L refrigerants.

How much does it cost to start an HVAC business in Georgia?

A service-only startup runs $15,000–$35,000; a full-service residential operation runs $30,000–$58,000. Licensing costs include the PSI exam ($267), GCILB application fee ($30), license fee ($75), EPA 608 certification ($20–$150), and a board-approved duct design course ($200–$500). Insurance runs $941–$1,425/year for general liability, $1,500–$2,200/year for commercial auto, and $2,000–$5,000/year for workers’ compensation (required at 3 employees). Equipment adds $5,000–$20,000 depending on service-only vs. full install capability, and a service vehicle adds $5,000–$20,000 for a used outfitted van or truck.