How to Verify a Contractor License in Ohio (OCILB & eLicense Lookup, 2026)
Ohio licenses five specialty trades at the state level — electrical, plumbing, HVAC, hydronics, and refrigeration — through the Ohio Construction Industry Licensing Board (OCILB). Verify any of them free at elicense.ohio.gov. General contractors and roofers have no state license; they’re regulated through city and county registration (Columbus, Cleveland, and Cincinnati each run their own systems).
Who Licenses What in Ohio?
| Trade | State licensed? | Where to verify |
|---|---|---|
| Electrical contractor | Yes — OCILB | elicense.ohio.gov |
| Plumbing contractor | Yes — OCILB | elicense.ohio.gov |
| HVAC contractor | Yes — OCILB | elicense.ohio.gov |
| Hydronics / refrigeration | Yes — OCILB | elicense.ohio.gov |
| General contractor | No — local registration | City building department |
| Roofer | No — local registration | City building department |
Note the nuance: OCILB licenses the contractor entity for commercial work statewide; municipalities typically require those same state licenses (or local equivalents) plus registration for residential jobs. Practical translation for homeowners: for the five trades, ask for the OCILB license number; for everything else, check city registration + insurance.
How Do You Verify, Step by Step?
- Go to elicense.ohio.gov → License Lookup — search by name or license number
- Confirm status: active, the trade matches your job, and the company name lines up with your contract
- Check for disciplinary history on the record
- GC/roofer jobs: call your city’s building department (Columbus, Cleveland, Cincinnati, Toledo, etc.) and confirm the contractor is registered and bonded to pull permits there
- Insurance certificates direct from the insurer, plus the universal 5-minute routine
What Should Ohio Homeowners Watch Specifically?
- Old housing stock: Cleveland and Cincinnati homes routinely date to the early 1900s — galvanized supply lines, clay sewer laterals, and 60-amp panels are common. That’s specialist work; verify the OCILB trade license, not just a GC registration. Price-check with our Cleveland plumber guide
- The permit question filters fast: “will this need a permit, and who pulls it?” A licensed trade contractor answers instantly; an unlicensed one suggests skipping it — which becomes your problem at sale time
- Winter rush scams: furnace die-offs in January and burst pipes bring out emergency-rate opportunists — emergency or not, the license lookup takes two minutes
- Where to complain: OCILB (the five trades), your city building department (registration violations), and the Ohio AG’s Consumer Protection Section, which enforces the state’s Consumer Sales Practices Act against deceptive home-improvement practices. Sequence: scammed by a contractor (Ohio small claims limit: $6,000)
Frequently Asked Questions
Does Ohio license general contractors? Not at the state level — GCs and roofers register city by city. Ohio’s state licenses (via OCILB) cover electrical, plumbing, HVAC, hydronics, and refrigeration contractors.
How do I look up a contractor’s license in Ohio? Search elicense.ohio.gov by name or number for the five OCILB trades. Confirm active status and a matching business name. For GCs/roofers, verify registration with your city’s building department.
Does my Ohio electrician or plumber need a state license? The contractor running the job should hold (or work under) an OCILB license, and most municipalities require it or a local equivalent to pull permits. Ask whose license the permit will be filed under — then verify that name.
What if a contractor offers to skip the permit in Ohio? Decline. Unpermitted electrical/plumbing/HVAC work can void insurance claims, fail point-of-sale inspections, and require expensive tear-outs. The offer itself tells you how they operate.
Where do I complain about a bad contractor in Ohio? OCILB for the licensed trades, your city building department for registration issues, and the Ohio Attorney General (Consumer Sales Practices Act) for deceptive practices — plus small claims court up to $6,000. Full playbook: scammed by a contractor.
Last updated: June 10, 2026. Sources: Ohio Construction Industry Licensing Board (OCILB); elicense.ohio.gov; Ohio Consumer Sales Practices Act (ORC 1345); municipal contractor registration rules (Columbus, Cleveland, Cincinnati). This article is consumer information, not legal advice.