Ohio Contractor License Lookup: How to Verify a Contractor's Credentials

Where to Search Depends on the License Type

There's no single database that covers every contractor in Ohio. Because the state splits regulation between the OCILB (commercial specialty trades) and local building departments (general contractors), you need to know which type of credential you're verifying before you start searching.

Verifying State OCILB Specialty Licenses

The Ohio Construction Industry Licensing Board manages licenses for five commercial trades: electrical, HVAC, hydronics, plumbing, and refrigeration. To look up one of these licenses:

1. Go to the Ohio eLicense Center at elicense4.com.ohio.gov
2. Select "License Lookup" and choose the Division of Industrial Compliance
3. Search by the contractor's name, company name, or license number

The results show the license status (active, expired, or in escrow), the trade classification, the company the license is assigned to, and the expiration date. OCILB licenses must be renewed either annually or triennially, so an active status today doesn't guarantee one next month — check the expiration date.

One thing worth understanding: OCILB licenses are issued to individual tradespeople, not to companies. The license holder formally assigns their credential to a single contracting company. If that person leaves the company, the license assignment terminates immediately, and the company gets a 90-day grace period to find a replacement.

Verifying Local General Contractor Registration

General contractors, residential builders, remodelers, and non-OCILB trades aren't in the state database at all. Their registrations live with individual city or county building departments. Here's how to check the three largest jurisdictions:

Columbus: Contact the Department of Building and Zoning Services (BZS) at [email protected] or use the Citizen Access Portal. Ask for the contractor's registration number and whether their bond and insurance are current.

Cleveland: Contact the Department of Building and Housing. Cleveland requires contractors to carry a $25,000 bond that expires December 31 annually, so registration lapses are common in early January if the contractor hasn't renewed.

Cincinnati: Contact the Department of Buildings and Inspections. Cincinnati's registration system requires proof of BWC coverage and local income tax registration, but a registration record does not by itself prove those items remain current.

For smaller municipalities, call the local building department directly. Many smaller Ohio cities maintain paper-only records.

What the Lookup Won't Tell You

A valid license or registration confirms that the contractor met the minimum requirements at the time of registration — it doesn't guarantee quality of work, financial stability, or current insurance coverage. Insurance policies can lapse between registration renewals, and bonds only cover claims up to their face value (typically $25,000).

Before hiring a contractor in Ohio, verify their registration status and request a current certificate of insurance directly from them. Our Ohio General Contractor License Guide covers exactly what to look for on those certificates and how to confirm they're legitimate.

See more Ohio guides →