STATE LICENSE
ConditionalOhio Construction Industry Licensing Boar…
The OCILB HVAC license is required to act as an HVAC contractor on a 'construction project' — and R.C. 4740.01(F) excludes one-, two- and three-family dwellings from that term. So statewide, a contractor doing only residential furnace and air-conditioning work needs no state license. Refrigeration and hydronics (steam and hot water) are separate OCILB licenses with their own exams.
The exemption is narrower than it looks. OCILB tells licensees that local building departments may require the license for residential work, and Ohio's largest cities do: Columbus, Cleveland (for new registrations), Cincinnati, Toledo and Dayton will not register an HVAC contractor without it. Getting it takes five years in the trade, board approval, BCI and FBI background checks, a two-part PSI exam, and $500,000 of liability insurance assigned to one contracting company. EPA Section 608 certification applies to anyone servicing refrigerant-containing equipment regardless.
The state sets the license floor; the county or city permit office controls filing, inspections, and local rules wherever the job site sits.
Because R.C. 4740.01(F) carves one-, two- and three-family dwellings out of 'construction project', the state license is legally commercial-only — but OCILB itself warns that local building departments may require it for residential work, and Ohio's big cities do. R.C. 4740.12(A) shapes how: no political subdivision may charge a contractor registration or license fee for these trades unless its ordinance also requires the registrant to hold the state license, while 4740.12(B) leaves cities free to regulate the installation work itself and to register tradespersons. In practice: Columbus will not register an electrical, HVAC, refrigeration, hydronics or plumbing contractor who is not state-licensed, charges a $350 annual registration fee, and separately licenses journeyperson plumbers. Cleveland requires every new or commercial trade registration to attach the state license ($150 new, $120 renewal, $25,000 bond, $200,000 insurance, expiring December 31); its form offers a '1, 2, 3 Family Only' scope alongside 'All Work', and older registrants renewing without a state license are held to residential-only work. Cincinnati registers OCILB contractors in their own class under Municipal Code Chapter 1106 ($131.25 a year, up to three years, expiring on the state license date). Toledo's trade registration ($200 application) requires a copy of the current state license, including for its separate 'Electrical Contractor Residential' class. Dayton's 2026 trade registrations require the state license, a $10,000 bond expiring December 31, and $100,000/$300,000 liability insurance. Akron requires every contractor whose work needs a permit to register, attach any state license the trade requires, and carry $3 million in liability coverage. Outside these cities, whether a residential trade contractor needs any credential depends entirely on the local building department.
The local offices section below names the exact permit desk for every Ohio county on file.
Each row names the issuing authority, cost, timeline, citation, and status behind the requirement — verified against the official source.
Published fees from the issuing authorities, as of October 2026. Local permit fees vary by project and jurisdiction — the basis is stated where a flat number does not exist.
The $25 application and $25 issuance fees go to the state; the PSI exam fee is paid to the testing vendor.
A current licensee can park the license in escrow indefinitely for the $60 annual fee — no CE or insurance — then reactivate with up to 24 hours of CE and proof of insurance.
OCILB may charge a late fee of up to $120; a license expired more than one year requires reapplying and retesting.
A practical sequence for a new HVAC contractor in Ohio. Actual agency processing times are noted in the ledger above.
Each item names the issuing authority, cycle, and citation.
Statutory consequences with their citations — not estimates, not “commonly cited” guesses.
Acting as or claiming to be an HVAC contractor without the OCILB license is a crime.
At the specialty section's request the Attorney General may seek a TRO or permanent injunction in the county where the unlicensed person works.
The HVAC section may suspend, revoke or refuse a license, require added CE hours, or issue a fine.
Inside city limits, the city office listed here issues the permit; the county office serves unincorporated areas. Every office links to its official page.
Every fact in this file was checked against these official sources on October 2026.
Pending verification: PSI exam vendor fee (not published on com.ohio.gov) · R.C. 4740.04 refers to ten hours of CE per year while OCILB's page states 8 hours (annual) / 24 hours (triennial); the rule reconciling the two was not retrieved · Toledo's annual trade-registration renewal fee (only the $200 application fee was confirmed) · Whether Cincinnati registers a residential-only HVAC contractor without a state license under its Home Improvement class
General information, not legal advice. Always confirm requirements, deadlines, and forms with the issuing authority before filing or contracting.
Store licenses, permits, policies, and renewal dates in one place.