How do I check an Ohio contractor's license?

Ohio licenses five specialty construction trades through the Ohio Construction Industry Licensing Board (OCILB): HVAC, electrical, plumbing, hydronics, and refrigeration. Search at com.ohio.gov/dico for OCILB licensees. Ohio does NOT issue a statewide general contractor license — for general residential remodeling, check the city or county building department. Cleveland, Columbus, Cincinnati, Akron, Toledo, Dayton, and most major cities run their own contractor systems.

Which trades does Ohio license at the state level?

OCILB licenses five: (1) Heating, Ventilating, and Air Conditioning (HVAC), (2) Electrical, (3) Plumbing, (4) Hydronics (boilers, radiant systems), and (5) Refrigeration. All five are statewide and required regardless of city. For senior home projects involving any of these trades — heat pump install, electrical upgrade, plumbing for a walk-in tub — OCILB verification is the right first step. General remodeling is NOT state-licensed.

What if my contractor is doing general remodeling?

Check the city or county building department where your home is located. Cleveland, Columbus, Cincinnati, and most major Ohio cities require their own General Contractor registration or license. Suburbs and smaller cities vary — call the local building department and ask what is required. Without a state-level general license, you cannot rely solely on OCILB for whole-room remodels; you must check locally.

How do I verify an Ohio HVAC contractor for a heat pump install?

Search the OCILB license database at com.ohio.gov/dico for the HVAC license. Confirm status is Active and the license type matches (commercial HVAC vs residential HVAC). For senior heat pump installs claiming a utility rebate (AEP Ohio, Duke Energy, Dayton P&L), the contractor must usually be on the utility's approved contractor list in addition to holding the OCILB license. Verify both — and see [NATE certification for HVAC](/find-contractor/nate-certification-hvac/) for the voluntary competence credential that signals quality above the OCILB baseline.

What contractor scams target Ohio seniors?

Three patterns. (1) Post-storm roofers in tornado-belt cities (Dayton, Columbus suburbs) — door-to-door pitches and Assignment-of-Benefits forms after storms. (2) Driveway sealing and chimney "inspection" traveling crews target senior neighborhoods every spring. (3) Unlicensed HVAC contractors offering "discounted" furnace/AC replacement — Ohio has prosecuted unlicensed HVAC work aggressively. The Ohio Attorney General Consumer Protection Section pursues fraud against seniors with enhanced penalties under the state's elder-fraud statutes.

How do I report a bad contractor in Ohio?

For OCILB-licensed trades (HVAC, electrical, plumbing, hydronics, refrigeration): file at com.ohio.gov/dico — the board can fine, suspend, or revoke. For general remodeling fraud (not OCILB-licensed): file with the Ohio Attorney General Consumer Protection Section at ohioattorneygeneral.gov AND your local building department. Ohio law enhances penalties for fraud committed against people 60+ under the Adult Protective Services framework.

Does Ohio require contractor insurance?

OCILB licensure requires proof of commercial general liability insurance (typically $500,000 minimum) and workers compensation. For senior projects, verify a current Certificate of Insurance with the carrier directly — registration-time proof does not mean current-day active. Outside the OCILB trades, insurance requirements come from the local jurisdiction; Cleveland, Columbus, and Cincinnati all require GL and workers comp for licensed contractors.

Ohio Contractor License Lookup (OCILB) 2026

The short version: Ohio licenses five specialty trades through OCILB — HVAC, electrical, plumbing, hydronics, refrigeration — but has no statewide general contractor license. Verify OCILB trades at com.ohio.gov/dico. For general remodeling, call your city or county building department (Cleveland, Columbus, Cincinnati, Akron, Toledo, Dayton all have their own systems). Senior projects involving HVAC for heat pump rebates also need utility approved-contractor verification. Ohio’s elder-fraud statutes enhance penalties for fraud against seniors 60+.

Ohio: OCILB trades + city general contractors

Ohio’s contractor licensing has two layers. The Ohio Construction Industry Licensing Board (OCILB) handles five specialty trades at the state level. Everything else — general residential remodeling — is licensed locally, with most major cities running their own systems.

For senior projects, mapping which layer applies is step one. Heat pump install? OCILB HVAC. Bathroom remodel? Local building department. Both? Verify both.

This is the Ohio-specific companion to our national state contractor license lookup guide. For the full pre-hire workflow, see How to Find a Senior-Friendly Contractor.

Layer 1: OCILB state trades

OCILB licenses these five at the state level:¹

Trade	Senior project applications
HVAC	Heat pump, AC, furnace install
Electrical	Bedside circuits, GFCI, lighting upgrades
Plumbing	Walk-in tub plumbing, fixture replacement
Hydronics	Boilers, radiant heating
Refrigeration	Commercial mostly; rarely senior-residential

To verify: go to com.ohio.gov/dico → OCILB Licensee Search. Enter the license number or business name. Confirm:

Status Active (not expired or revoked)
License type matches your project (commercial vs residential HVAC, etc.)
Business name matches the quote
Disciplinary history — any recent enforcement?

OCILB licenses are state-portable — a Cleveland-licensed HVAC contractor can work in Cincinnati. The license travels with the contractor across Ohio.

Layer 2: Local — city/county general contractors

For general residential remodeling (everything that is NOT an OCILB trade), Ohio relies on local jurisdictions. Major cities run their own systems:

Cleveland — Department of Building & Housing General Contractor registration
Columbus — Department of Building & Zoning Services
Cincinnati — Department of Buildings & Inspections
Akron, Toledo, Dayton — each runs its own contractor licensing
Suburbs — vary widely; some require registration, others delegate

The verification process: call your local building department. Ask:

“What contractor license or registration is required for [project type] at [my address]?”
“Is [contractor name] currently in good standing?”
“What permits will be required?”

Five minutes on the phone is your verification.

Special case: senior heat pump rebates

Ohio seniors planning a heat pump install with a utility rebate need TWO verifications:

OCILB HVAC license — at com.ohio.gov/dico
Utility approved-contractor list — AEP Ohio, Duke Energy, Dayton P&L, etc. each maintain their own list. The contractor must be on the list for your rebate to apply.

Both are required. For the competence credential above the OCILB baseline, also confirm NATE certification for the specific installing technician.

Ohio senior scam patterns

Tornado-belt roofers — Dayton, Columbus suburbs, and the broader I-70 corridor see post-storm storm-chaser activity. Door-to-door pitches after any major storm are a red flag. Never sign over insurance proceeds (AOB-style).
Spring driveway sealing — traveling crews target senior neighborhoods with “discounted” sealcoat. Quality is bad and pricing inflated. Refuse door-to-door driveway work.
Chimney “inspection” pitch — door-to-door “we noticed your chimney” leads to fabricated problems and overpriced fixes. Never engage at the door.
Unlicensed HVAC — Ohio prosecutes unlicensed HVAC contracting aggressively. Verify OCILB before any HVAC work.

If something goes wrong

OCILB-licensed trades: file at com.ohio.gov/dico — board can fine, suspend, or revoke.
General remodeling: complain to the Ohio Attorney General Consumer Protection Section + your local building department.³
Elder financial abuse: report to your county Adult Protective Services. Ohio law enhances penalties for fraud against people 60+.

Ohio verification in 30 seconds:

HVAC / electrical / plumbing / hydronics / refrigeration → com.ohio.gov/dico (OCILB)
General remodeling → Cleveland/Columbus/Cincinnati/local building department
Heat pump rebates → BOTH OCILB AND utility approved-contractor list
Verify insurance directly with the carrier; OCILB-time proof ≠ current
Post-storm: never door-to-door; never sign over insurance proceeds
Problems → OCILB (trades), Ohio AG (general), Adult Protective Services (elder fraud)

State Contractor License Lookup: All 50 States — national hub
California Contractor License Lookup (CSLB)
Florida Contractor License Lookup (DBPR)
Texas Contractor License Lookup (TDLR)
New York Contractor License Lookup (HIC/DCWP)
Pennsylvania Contractor Registration (HICPA)
Illinois Contractor License Lookup (IDFPR + Chicago)
NATE Certification for HVAC Hires — competence credential above OCILB baseline
Find a Licensed Electrician for Senior Homes
Ohio Heat Pump Rebates 2026

Citations

OCILB Licensee Search. Ohio Construction Industry Licensing Board, retrieved May 31, 2026. com.ohio.gov/dico.

Ohio Construction Industry Licensing Board Information. Ohio Department of Commerce, Division of Industrial Compliance, retrieved May 31, 2026. com.ohio.gov/ocilb.

Ohio Attorney General Consumer Protection. Office of the Ohio Attorney General, retrieved May 31, 2026. ohioattorneygeneral.gov.

Home Improvement Scams Targeting Older Adults. AARP Fraud Watch Network, June 2024. aarp.org/fraud-watch.