How to Start an HVAC Business in Kentucky (2026)

Last updated: February 25, 2026

Kentucky has a statewide HVAC licensing system administered by the Department of Housing, Buildings and Construction (DHBC), Division of HVAC. All HVAC work in Kentucky – installation, maintenance, repair, or remodeling – must be performed by or under the supervision of a licensed HVAC professional. Operating without a license is illegal. The license structure has two tiers: a Journeyman HVAC Mechanic license ($50/year) for those doing the work, and a Master HVAC Contractor license ($250/year) required to operate a business, pull permits, and supervise journeymen. Both require passing Prov Testing Services exams with a 70% score. Kentucky has a reciprocity agreement with Ohio for HVAC licensing.

HVAC Business Requirements in Kentucky at a Glance

Requirement	Agency	Cost	Timeline
LLC Formation	Kentucky Secretary of State	$40	2-5 business days
Journeyman HVAC Mechanic License	DHBC Division of HVAC	$50/year	After passing exam; 3,000 hrs experience required
Journeyman Exam (Prov Testing)	Prov Testing Services	$80	Schedule through Prov; 70% passing score
Master HVAC Contractor License	DHBC Division of HVAC	$250/year	Must hold journeyman license 2+ years
Master Exam (trade + business/law)	Prov Testing Services	$80 + $60 = $140 total	Open book; 70% passing score
General Liability Insurance	Private insurers	Varies; $500K minimum required	Required with master license application
Property Damage Insurance	Private insurers	Varies; $300K minimum required	Required with master license application
EPA 608 Certification	EPA-approved testing organizations	$20-$30	Required to handle refrigerants
Workers’ Compensation	Private insurers	Varies by payroll	Required at first hire
Annual CE – Journeyman	DHBC-approved providers	Varies	6 hours per year
Annual CE – Master	DHBC-approved providers	Varies	8 hours per year

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

Step 1: Meet Experience Requirements and Get Your Journeyman License

To qualify for a Kentucky Journeyman HVAC Mechanic license, you must meet these requirements:

Age: At least 18 years old
Education: High school diploma or GED (an associate’s degree or certificate in HVAC technology may substitute)
Experience: Minimum 3,000 documented work hours AND 2 years of experience under a licensed Kentucky Master HVAC Contractor. If you have 4+ years of experience from a state without a licensing requirement, that may qualify instead.
Exam: Pass the Prov Testing journeyman exam ($80, open book, 60 questions, 3 hours, 70% minimum score)
License fee: $50/year (prorated by birth month at initial issuance)

Contact the DHBC Division of HVAC at (502) 573-0395 to initiate your application. Schedule your Prov Testing exam through Prov’s online portal.

Step 2: Hold Your Journeyman License for 2 Years

Kentucky requires that you hold an active Journeyman HVAC Mechanic license for at least 2 years before you can qualify for a Master HVAC Contractor license. Use this time to build hands-on experience, build client relationships, and study for the master exams. You must complete 6 hours of CE per year to renew your journeyman license during this period.

Step 3: Pass the Master Contractor Exams

The Master HVAC Contractor license requires passing two separate Prov Testing exams:

Trade Exam: $80, open book, 70 questions, 2.5 hours, 70% passing score – covers HVAC systems, codes, installation and service
Business and Law Exam: $60, open book, covers Kentucky contractor law, business regulations, and licensing requirements
Total exam cost: $140

Step 4: Apply for Your Master HVAC Contractor License

Submit your master license application to DHBC with:

Completed application form from dhbc.ky.gov
License fee: $250/year (prorated by birth month)
Proof of passing scores on both master exams
Proof of active Journeyman license for 2+ years
Certificate of General Liability Insurance: minimum $500,000
Certificate of Property Damage Insurance: minimum $300,000

The Master Contractor license allows you to operate an HVAC business, pull permits, and supervise journeyman-level technicians.

Step 5: Get Your Federal EPA 608 Certification

Any technician who works with refrigerants must hold an EPA Section 608 certification. This is a federal requirement separate from Kentucky state licensing. Four certification types cover different equipment categories (Type I: small appliances; Type II: high-pressure refrigerants; Type III: low-pressure refrigerants; Universal: all categories). The Universal certification costs $20-$30 through EPA-approved testing organizations and covers all HVAC work. There is no expiration date on EPA 608 certification.

Step 6: Form Your Business Entity

Register an LLC with the Kentucky Secretary of State for $40. Obtain a federal EIN. Register for your Kentucky LLET ($175/year minimum) and local occupational license with your city or county. Open a business bank account.

Step 7: Maintain Continuing Education

Kentucky HVAC licensees must complete approved continuing education every year to renew:

Journeyman license: 6 hours of CE per year
Master contractor license: 8 hours of CE per year

Proof of CE must be submitted with your renewal application. License renewals are tied to your birth month.

Cost to Start an HVAC Business in Kentucky

Item	Cost	Notes
Journeyman Exam	$80	Prov Testing; per attempt
Journeyman License	$50/year	Annual; DHBC
Master Exams (trade + law)	$140	$80 + $60; Prov Testing
Master Contractor License	$250/year	Annual; DHBC
EPA 608 Certification	$20-$30	Federal; no expiration
LLC Formation	$40	One-time; Secretary of State
LLET (annual)	$175/year	Kentucky LLC entity tax
General Liability Insurance ($500K)	$1,500-$4,000/year	Required for master license
Property Damage Insurance ($300K)	Typically bundled with GL policy	Required for master license
Tools and Equipment	$5,000-$20,000+	Manifold gauges, recovery machine, service van, etc.

Estimated total startup licensing cost (exams + licenses + formation): $590-$640 (first year)

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Frequently Asked Questions

Do I need a license to do HVAC work in Kentucky?

Yes. Kentucky requires a state HVAC license for anyone installing, maintaining, repairing, or remodeling HVAC systems. The Journeyman HVAC Mechanic license is for technicians doing the work; the Master HVAC Contractor license is required to operate a business, pull permits, and supervise others. Operating without a license is illegal and subject to enforcement by the DHBC Division of HVAC.

How do I get a Kentucky Journeyman HVAC license?

You need: (1) at least 18 years old with a high school diploma or GED; (2) minimum 3,000 documented work hours and 2 years of experience under a licensed Kentucky Master HVAC Contractor; and (3) a passing score (70%) on the Prov Testing journeyman exam ($80). Contact DHBC at (502) 573-0395 to apply. The annual license fee is $50.

How long does it take to become a Kentucky Master HVAC Contractor?

You must first earn your Journeyman license (requires 2+ years experience + exam), then hold that journeyman license actively for at least 2 additional years before qualifying for the master exam. So the minimum path to a master contractor license from scratch is roughly 4-5 years of experience and licensure. The master exam itself costs $140 (trade + business/law).

What insurance does a Kentucky HVAC master contractor need?

Kentucky HVAC Master Contractor license applicants must provide proof of General Liability Insurance with a minimum $500,000 limit and Property Damage Insurance with a minimum $300,000 limit. These must be maintained throughout your license period. Workers’ compensation is also required as soon as you hire any employee.

Is there reciprocity for Kentucky HVAC licenses?

Yes. Kentucky maintains a reciprocity agreement with Ohio for HVAC licensing. If you hold a current, active HVAC license from Ohio, you may be eligible for a Kentucky license without retaking all exams. Contact the DHBC Division of HVAC at (502) 573-0395 to verify your eligibility and the reciprocity application process.

How many CE hours do Kentucky HVAC contractors need?

Journeyman HVAC Mechanic licensees must complete 6 hours of continuing education per year. Master HVAC Contractor licensees must complete 8 hours of CE per year. Proof of CE must be submitted with your annual renewal application to the DHBC Division of HVAC.

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About the Author

Robert Smith has run a licensed private investigation firm for 8 years from the Florida-Georgia state line - where he learned firsthand how wildly business licensing rules differ between states just miles apart. He personally researched requirements across all 50 states and D.C., reviewing hundreds of government sources over hundreds of hours to build guides he wished existed when he started. Not a lawyer or accountant - just a business owner who has done the research so you don't have to.

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