Ohio licenses HVAC contractors at the state level through the Ohio Construction Industry Licensing Board (OCILB) under Ohio Revised Code (ORC) Chapter 4740. The requirements below are drawn from ORC Chapter 4740; for application-specific details the statute does not set — such as exam fees and the current testing vendor — confirm the figures on the OCILB application before you apply.
When the state HVAC license is required
OCILB licenses heating, ventilating, and air-conditioning (HVAC) contractors (and refrigeration contractors) for construction projects involving buildings or structures subject to ORC Chapter 3781 — which excludes "residential building" as defined in ORC 3781.06. In practice, that means the state license governs commercial/non-residential HVAC contracting.
Contractor vs. tradesperson
ORC Chapter 4740 distinguishes a contractor (the licensed business/qualifier) from a tradesperson. Individual technicians working under a licensed contractor generally do not need their own state contractor license to perform the work.
Experience requirements
Under ORC 4740.06, an applicant for an HVAC contractor license must show one of the following:
- At least 5 years immediately prior to application as a tradesperson in the licensed trade; or
- be a registered engineer with 3 years of business experience in construction in the trade; or
- other experience acceptable to the specialty section of the board.
Exam
An examination is required (ORC 4740.06). The statute does not name the testing vendor or set the exam fee or study materials — those are administered by OCILB, so confirm the current provider, fee, and approved references on the OCILB application before scheduling.
Fees, insurance, and bond
ORC 4740.06 requires an HVAC contractor to maintain contractor liability insurance in an amount determined by the specialty section of the board. The statute does not itself fix application, exam, or license fees, the exact insurance dollar minimum, or any bond requirement — confirm those figures against the current OCILB application and board rules.
Renewal and continuing education
- Renewal: annual — a license expires on the same date each year as the original (ORC 4740.06).
- Continuing education: 10 hours per year for an individual holding any number of valid, unexpired licenses (ORC 4740.04).
Refrigerant handling
Technicians who maintain, service, repair, or dispose of equipment containing covered refrigerants must hold EPA Section 608 certification (federal), separate from the state license.
Frequently asked questions
Do I need a state license to do HVAC work in Ohio?
Ohio's OCILB licenses HVAC contractors for non-residential (commercial) construction under ORC Chapter 4740. Residential HVAC work and many requirements are handled locally, so check your municipality as well.
How much experience do I need?
ORC 4740.06 requires at least 5 years immediately prior to application as a tradesperson in the trade, or status as a registered engineer with 3 years' construction business experience, or other experience acceptable to the board's specialty section.
How often do I renew, and is there continuing education?
The license renews annually (it expires on the same date each year). You must complete 10 hours of continuing education per year (ORC 4740.04).
Do technicians need their own license?
ORC Chapter 4740 distinguishes contractors from tradespeople; individuals working under a licensed contractor generally do not need their own state contractor license.