Ohio HVAC license requirements at a glance
- Issued by
- Ohio Construction Industry Licensing Board (OCILB), Division of Industrial Compliance, Ohio Department of Commerce
- License required
- Yes for commercial HVAC. No state license for residential work, which is regulated through city registration instead
- Experience
- 5 years practical experience
- Exam
- PSI HVAC Trade Exam plus PSI Business and Law Exam (both open book, 70% each)
- State fees
- $25 application, then $60 annual or $180 triennial renewal
- Renewal
- Every year at $60, or 3 years at $180, with 8 CE hours annually
- Avg. OH HVAC salary
- $57,200/yr (2024)
- Federal
- EPA Section 608 required
How do you get an HVAC license in Ohio?
- Work five years as a tradesperson in the HVAC trade immediately before applying, under a licensed contractor, or three years as a registered engineer in the trade
- Clear the state and federal background checks and meet the age and citizenship conditions OCILB applies to applicants
- Pass both PSI exams, the HVAC trade exam at 100 questions in four hours and the business and law exam at 50 questions in two hours, open book with 70% on each
- Submit the OCILB application with the $25 fee, show $500,000 contractor liability insurance naming the contracting company, and assign the license to that company
- For residential work, skip the state license and register with each city instead, budgeting for local bonds commonly around $25,000 and city liability minimums
What license tiers does Ohio offer?
There is no state journeyman or master ladder in Ohio. OCILB issues a single commercial HVAC contractor license, with refrigeration as a separate classification under the same board. Apprentice and journeyman are experience stages here, not credentials the state issues, which is why the requirement is stated as five years worked rather than as license steps. Residential registrations are issued by cities, each with its own tiers, bonds, and scope, so the ladder you actually climb depends on where you work.
What is the Ohio HVAC exam like?
PSI administers two open-book exams and you need 70% on both. The HVAC trade exam runs 100 questions in four hours. The business and law exam runs 50 questions in two hours and is offered on a periodic schedule rather than continuously, so check dates before you plan an application timeline. Question counts and section fees come from third-party sources rather than an OCILB bulletin and should be confirmed. Kentucky reportedly recognizes the Ohio mechanical contractor license by reciprocity, which makes the Ohio credential useful across the river.
How much does an HVAC license cost in Ohio?
The state commercial license is cheap: $25 application, PSI section fees reported around $69 each, background checks around $25 each, and renewal at $60 annually or $180 triennially. Continuing education runs 8 hours a year or 24 over three years, with at least half in person. The $500,000 contractor liability insurance assigned to the contracting company is the significant ongoing cost. Residential work adds a separate stack entirely: city registration, a local surety bond commonly around $25,000, and city liability minimums that differ between Columbus and Cleveland.
How long does it take to become an HVAC tech in Ohio?
The clock is the 5 years of practical experience, paid full-time work under a licensed contractor. Ohio is the split state. The OCILB license covers commercial HVAC only and takes five years of trade experience before you may test, while residential HVAC needs no state license at all and runs through city registrations with their own bonds and insurance minimums.
Is HVAC a good career in Ohio?
Ohio figure is the BLS state median for HVAC mechanics and installers (May 2024). National median from the U.S. Bureau of Labor Statistics (May 2024). Verify current figures with BLS.
What does it take to start your own HVAC business in Ohio?
The OCILB license must be assigned to a contracting company under ORC 4740.01, backed by $500,000 contractor liability insurance naming that company. Workers compensation runs through the Ohio Bureau of Workers Compensation. No dollar threshold applies to the state commercial license. Residential thresholds are local, and Ohio's Home Construction Service Supplier registration applies to residential contracts above $25,000. Columbus requires a $25,000 surety bond plus $300,000 and $500,000 liability. Cleveland requires $200,000 liability plus a $25,000 bond.
What most guides get wrong about Ohio
Ohio's license is commercial only, and almost nobody says so plainly. Guides that open with 'you need an Ohio state HVAC license' send residential technicians chasing a credential they do not need and cannot use, while omitting the city registration and local bond they actually do need. Columbus wants a $25,000 surety bond plus $300,000 and $500,000 liability. Cleveland wants $200,000 liability plus a $25,000 bond. Neither shows up in the state-level guides. The live question for 2026 is HB 614, which creates a statewide residential home improvement contractor registration effective January 1, 2026, and whether HVAC-only residential work is captured by it.
Ohio HVAC license: frequently asked questions
Do you need a state HVAC license in Ohio?
Only for commercial work. The OCILB license issued through the Department of Commerce covers commercial HVAC contracting. Residential HVAC has no state license in Ohio and is regulated at the city level, so a technician doing residential changeouts in Columbus or Cleveland needs local registration rather than a state credential. This is the single most misreported fact about Ohio licensing.
How long does it take to get an Ohio HVAC contractor license?
At least five years. OCILB requires five years working as a tradesperson in the HVAC trade immediately before you apply, under a licensed contractor, with a three-year path for registered engineers in the trade. The exams and application add a few weeks once the experience is documented, and the business and law exam is offered periodically rather than continuously.
How much does the Ohio HVAC license cost?
The state side is inexpensive, roughly $150 to $300 all in: a $25 application, PSI section fees, and background checks around $25 each. Renewal is $60 a year or $180 for three years. The real money sits in the $500,000 contractor liability insurance and, if you work residential, the local registrations and bonds, commonly around $25,000 in cities like Columbus and Cleveland.
Do you need the OCILB license for residential HVAC in Ohio?
No. Residential HVAC sits outside the OCILB commercial license and is regulated locally, which means city registration, a local bond, and city insurance minimums instead. Ohio also enacted HB 614, which introduces a statewide residential home improvement contractor registration effective January 1, 2026, so confirm whether HVAC-only residential work falls inside its scope before relying on the local-only answer.
HVAC licensing in every state
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