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Franklin County, Ohio

Licensed Trade Records in Franklin County, Ohio

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Browse 1,845 verified licensed trade contractors registered across Franklin County, Ohio (including Columbus, Dublin, Westerville, Grove City, Reynoldsburg, Hilliard). Every record is compiled from Ohio Construction Industry Licensing Board (OH OCILB) public credential files under Ohio Revised Code Chapter 4740 (Ohio Construction Industry Licensing Board: HVAC, Hydronics, Plumbing, Electrical, and Refrigeration Contractor Licenses).

Official State Authority: Ohio Construction Industry Licensing Board (OH OCILB) Official Registry · County Seat: Columbus

Municipalities in Franklin County (1)

Select a city or town in Franklin County to view local permit guidance and registered all trades records:

Columbus 1836

1845 all trades records · Franklin County, OH

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Public Directory Quality: Official OH OCILB license records across Franklin County · Zero sponsored order · Never sold as a lead · How our data works →

All trades directory — Franklin County

1845 matching records across 1 open municipalities · 25 on this page · Contactable records first, then alphabetical.

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Show registered-address map (25 records on this page)14 approximate areas

Shaded areas mark approximate postal or city locations, not premises or service areas. Circle sizes are illustrative, not postal boundaries. Some records share the same area. Private addresses are excluded.

5ZIP 432153ZIP 432293ZIP 430852ZIP 432192ZIP 432042ZIP 432301ZIP 432321ZIP 430161ZIP 432201ZIP 432231ZIP 432071ZIP 430811Columbus1ZIP 43231Approximate postal/city centroid schematic (14 areas)

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Other Counties in Ohio

Cuyahoga CountyHamilton CountySummit CountyMontgomery CountyLucas CountyStark CountyMahoning CountyRichland County

Before the first call

  • Describe the job and ask whether it is within their scope and service area.
  • Check the credential with its issuing authority and ask what applies where the work will happen.
  • Ask about insurance, availability, who will do the work, and a written scope.
  • Ask about callout fees, labor or fixed rates, materials, cancellation and any estimate charge.
Prepare a project brief

Verification Overview & Key Takeaways: How to Check Official Credentials

HomeCrafto displays source records with different scopes, including licenses, registrations, municipal permits and community records. A source entry is not proof of qualification for your job. Before signing a work order or paying a deposit, homeowners should confirm that the contractor’s credential number is active, verify that the license classification covers the specific trade scope required for the job, and request a current Certificate of Insurance (COI) directly from the issuing insurance carrier. Independent verification protects your property and ensures compliance with local building codes.

How do you verify a contractor license number and insurance on official portals (FAQ)?

You can verify active license standing and consumer protection rules directly through official government portals, including Washington L&I Contractor Verify, the California Contractors State License Board (CSLB), the Connecticut eLicense Portal, USA.gov State Consumer Protection Offices, and FTC Home Improvement Consumer Guidance. Always confirm municipal permit requirements with your local building department before work begins.