HVAC Contractor License Requirements in Ohio

Overview — hvac licensing in Ohio

Ohio requires a state-level hvac contractor license, issued by the Ohio Construction Industry Examining Board (OCIEB). The license verifies competence and consumer protection, and is required to legally bid and perform hvac work in the state. Working without one when required is typically a misdemeanor and exposes the contractor to civil penalties — and the contract becomes unenforceable in court.

License classes available

Ohio offers 3 hvac license classes — pick based on the largest project you plan to bid:

• Ohio HVAC Contractor. State commercial license. Required for commercial HVAC statewide. Residential regulated locally.
• Ohio Hydronics Contractor. Hydronic heating systems (boilers, radiant). Separate license from HVAC.
• Ohio Refrigeration Contractor. Refrigeration systems. Separate from HVAC.

Experience required

5 years HVAC trade experience, OR 3 years + relevant degree.

Exam — what you're tested on

Ohio requires a written examination administered by PSI Services on behalf of OCIEB. Topics covered:

• IMC + OH amendments
• Refrigeration theory
• Business law

Passing score: 75%.

Fees

• Application fee: $25
• Initial license fee: $95
• Renewal fee: $60 ( annual)

Bond & insurance

Bond: Not required at the state level.

General liability insurance: Minimum $500,000.

Workers' compensation: Required through Ohio BWC (monopolistic state).

Continuing education

Ohio requires 8 hours of continuing education annual. CE must come from approved providers — verify a course is approved before paying. Required topics typically include:

• IMC updates
• Refrigerant management
• Safety

Reciprocity with other states

Ohio has reciprocity agreements with: KY, WV. Reciprocity typically waives the trade exam if you hold an equivalent license in good standing in the reciprocal state for at least one year. Each state still requires its own application and business/law exam.

Local permits and requirements

OCIEB covers commercial only. Residential HVAC regulated by city/county.

Common gotchas

Things that catch most applicants on their first license cycle in Ohio:

• OCIEB is COMMERCIAL only — residential HVAC is local.
• Three separate trade licenses: HVAC, Hydronics, Refrigeration. Each has its own exam.
• Annual CE (8 hrs) — OCIEB-approved providers.
• EPA Section 608 separately required.

Frequently asked questions

Does the Ohio HVAC license cover residential work?

No — OCIEB licenses are commercial only. Residential HVAC is regulated city-by-city.

Are HVAC, Hydronics, and Refrigeration the same OCIEB license?

No — three separate licenses. HVAC for forced air. Hydronics for boilers/radiant. Refrigeration for cold-storage and process refrigeration. Many techs hold multiple.

How long does Ohio OCIEB HVAC licensing take?

Application: 4–8 weeks. Exam: 2–6 weeks. Total: 8–14 weeks from start.

How much does workers' comp cost for Ohio HVAC contractors?

Ohio BWC class 5183 (sheet metal/HVAC) approximately 4–6% of payroll for new accounts.

Can I do residential HVAC in Cleveland with the OCIEB license?

No — Cleveland regulates residential HVAC through the city. Separate Cleveland HVAC contractor registration required.