Cincinnati contractor license lookup: which registration, where to search, and what the permits show

Which registration or license each job needs in Cincinnati

The City's rule, from Buildings & Inspections (read 22 October 2026): all contractors doing work within city limits must register and renew under Municipal Code Chapter 1106, and "Building permits cannot be issued until all applicable contractors are registered." The fee is $125 plus surcharges, $131.25 a year, for up to three years. A state-licensed contractor's registration is valid until the state license expires; everyone else's runs one year from issue (Contractor Registration). An owner of a 1-, 2- or 3-family home who personally does the work and lives there for at least a year afterwards is exempt.

The State's part is narrow. The OCILB licenses electrical, HVAC, plumbing, hydronics and refrigeration contractors, and its guide says "In Ohio, residential contractors are not required to be licensed" (Division of Industrial Compliance). So a firm calling itself "state licensed" for a kitchen remodel is describing a license Ohio does not issue.

Electrical work runs on a separate track. The City's residential permit guide says The Inspection Bureau, Inc. (IBI) handles electrical permits, plan review and inspections, reachable on (513) 381-6080, and the electrical contractor usually applies to IBI directly (Residential Permit Guide, an older City page, read 22 October 2026). Plumbing permits go through the City's Plumbing Section, (513) 352-3280, and HVAC through (513) 352-3781.

How to run the lookup in five minutes

1. Ask for two numbers: the City registration number, and for HVAC or plumbing work the OCILB license number.
2. City: open Find A Registered Contractor, type part of the business name and pick the contractor type. A firm not on the list cannot get your permit.
3. State: search the license on the OCILB License Lookup (by credential number or the license holder's name), or the company name on the Company Licensee Lookup; untick "Exact Match" if the full name returns nothing.
4. Track record: open the firm on our Cincinnati HVAC list, plumbing list or remodel list.

How to search Cincinnati permit records

The City lists its public permit tools on its Public Apps page:

• ezTRAK Edge, the City's online services portal, which offers "Search for property information" and "Search for records from multiple different agencies"; filing and inspection scheduling need a free account.
• CAGIS Property Activity Report, which the City lists among its public data tools; search it by address.

For an electrical permit, ask IBI. Then check that the contractor on each permit is the firm you hired; if the name differs, ask who pulled it and under whose registration.

These tools are organised by property. Ours is organised by firm: each firm's Cincinnati permits over three years, the share finaled and how long that took, on the Cincinnati permit statistics page and the compare lists.

What 15,821 Cincinnati permits show

"Finaled" is the share of permits a year or more old with a recorded final.

HVAC is the trade to read firm by firm. Among the 53 HVAC firms with 10 or more permits, the 10th-percentile firm finaled 53.7% and the 90th 88.8%; 24 were under 70%. Plumbers are tighter: 73.0% to 97.3%, with 4 of 98 under 70%. Remodelers run 43.6% to 88.8%, and 61.1% of remodel firms pulled a single permit in three years.

See every Cincinnati HVAC contractor by finaled share →

Red flags in Cincinnati

• A firm not on Find A Registered Contractor. The City will not issue its permit, so either the job goes unpermitted or someone else's registration goes on it.
• An HVAC or plumbing firm whose OCILB license returns a different company on the Company Licensee Lookup.
• A contractor who asks you to pull the permit as owner. The owner exemption is for work you personally do in a home you live in.
• "State licensed" for general or remodel work. Ohio issues no such license.
• An HVAC firm with a finaled share well under the city's 66.8%, or one of the 20 HVAC firms with 5+ permits that filed none in the last 12 months.

What this lookup does not tell you

We do not yet hold an Ohio license file or Cincinnati's registration list, so our Cincinnati pages show no license or registration status; every firm is unmatched, which says nothing about whether it is registered. Electrical permits are with IBI, not in our file. A registration says the firm may pull permits, not how its last job went. Ohio's $25,000 home-contract rules and the Cleveland and Columbus checks are in How to check a contractor's license in Ohio.