Licensing

Ohio contractor license requirements

Ohio's state licensing board, the Ohio Construction Industry Licensing Board (OCILB), licenses five commercial trades: electrical, HVAC, refrigeration, plumbing, and hydronics. General contractors and residential contractors are handled by the county, city, or township where the work happens.

A contractor and plan reviewer discuss drawings and permit paperwork across an office desk.
Keep plans, permit requirements and approvals together when preparing construction work. AI-generated illustration.

Ohio does not issue a state general contractor license. The state board, the Ohio Construction Industry Licensing Board (OCILB) in the Department of Commerce, issues licenses only to electrical, HVAC, refrigeration, plumbing, and hydronics contractors who perform commercial work. Everything else, including general contracting and most residential work, is regulated by the local building department where the job sits. Before you bid in a new city or county, call its building department and ask what registration it requires to pull a permit.

Ohio contractor licensing at a glance
ItemRule
Statewide general contractor licenseNone; OCILB licenses only five commercial trades
State-licensed trades (OCILB)Electrical, HVAC, refrigeration, plumbing, hydronics (commercial work)
Residential contractorsOCILB says it may not have authority over residential contractors; check local building departments
ExperienceFive years as a tradesperson in the trade immediately before applying (alternatives for Ohio PEs and inspectors)
ExamBoard approval, BCI and FBI background check, then a computer-based exam through PSI
Fees$25 exam application; $25 license fee after passing
InsuranceAt least $500,000 contractor liability insurance, assigned to a contracting company
General contractorsRegistered locally by the county, city, or township building department
License lookupOCILB eLicense Center at elicense4.com.ohio.gov/Lookup/LicenseLookup.aspx

General contractors in Ohio: local registration

Because there is no state general contractor license, the rules for a general contractor come from local government. In May 2026 consumer guidance reported by Spectrum News, the Ohio Department of Commerce advised people to contact the county, city, or township building department to confirm a contractor's license and registration to work in that area and to ask whether permits are required. In practice that means a GC working across Columbus suburbs might register with several building departments, each with its own forms, insurance certificate requirements, and renewal dates.

Workmanship and code complaints on residential jobs go to the local building department or the Ohio Attorney General's Consumer Protection Section, according to the OCILB complaint form. That form also says OCILB may not have authority over residential contractors. So for a homeowner hiring a remodeler, the state board is usually not the place to check.

OCILB commercial trade licenses

If your company does commercial electrical, HVAC, refrigeration, plumbing, or hydronics work, the company needs a state license held through a qualified individual. The OCILB examination application lists these requirements:

  • Be at least 18 and a U.S. citizen or legal alien (with proof).
  • Have worked as a tradesperson in that licensed trade for at least five years immediately before applying, and have no disqualifying offense under S.B. 337.
  • Provide the last five consecutive years of tax documents (W-2s or Schedule C).
  • Back up the experience with one of these: at least one permit for each of the last five years pulled by the licensed contractor you worked under; an active journeyman card in the trade; a certificate of completion from a state or U.S. Department of Labor approved apprenticeship; or 40 hours of OCILB-approved code continuing education in the trade, taken live or virtually.
  • Sewer service, water service, gas service, and drain cleaning permits do not count toward the experience proof.

Two alternate paths exist: an Ohio registered professional engineer with three years of business experience in the construction industry in that trade, or someone with five years of experience as an Ohio government inspector in that trade.

Exam, insurance, and getting the license

  1. Apply to sit for the exam. Send the OCILB examination application with the $25 fee, payable to Treasurer, State of Ohio. Each application covers one trade.
  2. Wait for Board approval. The Board reviews eligibility and notifies you by mail. Approval is valid for one year.
  3. Get background checks. After approval and before the exam, you must obtain BCI and FBI background checks.
  4. Take the PSI exam. Approved candidates get a PSI bulletin with scheduling steps. Exams are computer-based at sites in Ohio and other states, and you must pass both sections.
  5. Apply for the license. Send your exam results, a $25 check, and a certificate showing at least $500,000 in contractor liability insurance. The insurance and the license must be assigned to a contracting company as defined in Ohio Revised Code 4740.01.

OCILB approves continuing education training agencies, and the eLicense Center lists them. Ask OCILB what continuing education and renewal cycle apply to your trade before your license comes due.

Ohio contractor license lookup

The OCILB eLicense Center at elicense4.com.ohio.gov/Lookup/LicenseLookup.aspx searches electrical (EL), HVAC (HV), hydronics (HY), plumbing (PL), and refrigeration (RE) contractor licenses by credential number, name, state, or county. It also has a lookup by employer, which is handy for confirming that a licensed individual actually qualifies the company on your subcontract. For general contractors and residential trades, check with the local building department.

Smart Business Automator keeps local registrations, OCILB licenses, and insurance certificates for your company and your subs in one place, with alerts before anything expires. See subcontractor compliance automation. For payment protection, see Ohio mechanics lien rules, and for public jobs, Ohio prevailing wage.

Frequently asked questions

Does Ohio have a general contractor license?

No. Ohio's state board, OCILB, licenses only electrical, HVAC, refrigeration, plumbing, and hydronics contractors doing commercial work. General contractors register with local building departments.

What do I need for an OCILB license?

Five years of experience in the trade immediately before applying, five years of tax documents plus proof such as permits, a journeyman card, or an approved apprenticeship, Board approval, BCI and FBI background checks, a passing PSI exam, and at least $500,000 in contractor liability insurance.

How much does an Ohio contractor license cost?

The OCILB exam application fee is $25, and the license fee after passing is $25, per the OCILB application. Exam vendor fees and local registration fees are separate.

Do residential contractors need a state license in Ohio?

OCILB says it may not have authority over residential contractors. Residential contractors usually register with the local building department where they pull permits.

How do I look up an Ohio contractor license?

Use the OCILB eLicense Center at elicense4.com.ohio.gov/Lookup/LicenseLookup.aspx for the five commercial trades. For general contractors, contact the local building department.

Sources

  1. Ohio Department of Commerce: OCILB Examination Application
  2. Ohio Department of Commerce: OCILB Contractor Complaint Form
  3. OCILB eLicense Center: License Lookup
  4. Spectrum News 1: Ohioans urged to verify before tackling spring projects (May 1, 2026)

Laws and rates change. Confirm current requirements with the state agency before you bid, file, or pay. This page is general information, not legal advice.

Written and edited by

Maurice Francois writes and edits construction operations guides for Smart Business Automator. More from Maurice on the Scaling Legends podcast.

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