Ohio plumbing license lookup: how to check and get a license
Ohio plumbing license lookup: who issues plumber licenses (Ohio Construction Industry Licensing Board (Ohio Department of Commerce) for commercial work; residential work regulated locally (city/county building or health departments)), how to check one online, the license types, and 2,967 plumbing, heating and air-conditioning contractors by county.
Do plumbers need a license in Ohio?
| Who licenses them | Ohio Construction Industry Licensing Board (Ohio Department of Commerce) for commercial work; residential work regulated locally (city/county building or health departments) |
|---|---|
| License types | Plumbing Contractor |
| When a license is required | State license required for commercial work; residential set locally |
OCILB issues state contractor licenses (commonly called Master licenses) for commercial work only; residential contractor regulation is left to local building and health departments, which may require the state license at their discretion. Ask your city or county what it requires and confirm permits.
How do you look up a plumber's license in Ohio?
- Ask the plumber for the license number and the exact business name on the license.
- Open the Ohio plumbing license lookup run by Ohio Construction Industry Licensing Board (Ohio Department of Commerce) for commercial work; residential work regulated locally (city/county building or health departments).
- Search by license number first. A name search can return several people or companies with similar names.
- Check that the status is active or current, that the license type covers your job, and that the name matches the company on your contract.
- If something doesn't match, ask the plumber about it before you sign or pay a deposit, or contact Ohio Construction Industry Licensing Board (Ohio Department of Commerce) for commercial work; residential work regulated locally (city/county building or health departments).
What plumbing licenses does Ohio issue?
- Plumbing Contractor
How do you get a plumbing license in Ohio?
Licenses are issued by the Ohio Construction Industry Licensing Board (Ohio Department of Commerce) for commercial work; residential work regulated locally (city/county building or health departments). Requirements such as experience, exams, insurance and fees change, so read the current rules on the official Ohio Construction Industry Licensing Board (Ohio Department of Commerce) for commercial work; residential work regulated locally (city/county building or health departments) source before you apply. Already licensed? List your business on Expert Helper to get matched with customers.
How many plumbers are there in Ohio?
The Census Bureau counted 2,967 plumbing, heating and air-conditioning contractors with employees in Ohio in 2023. The counties with the most:
| Cuyahoga County | 312 |
|---|---|
| Franklin County | 240 |
| Hamilton County | 220 |
| Montgomery County | 140 |
| Summit County | 129 |
| Stark County | 99 |
| Lucas County | 99 |
| Butler County | 90 |
What do Ohio homes mean for plumbing work?
The median home in Ohio was built in 1970, 33% of households rent and 74% of homes are single-family houses. 64% of homes heat with utility gas and 26% with electricity, and 2% with fuel oil.
How do you choose a plumber in Ohio?
- Ask for the license number and look it up yourself on the state or city license search. Licensing is set by the state in some places and by the city or county in others.
- Ask whether the job needs a permit. Water heater swaps, gas work and moving fixtures often do, and the licensed plumber pulls it.
- Get the price in writing: a flat rate for the job, or the hourly rate, the trip fee and how parts are billed.
- For emergencies, ask what the after-hours rate is before the plumber drives out.
- Ask who does the work. A licensed master can send helpers, but the license holder is responsible for the job.
Plumbers in other states
Sources: Ohio licensing agency (linked above); US Census Bureau County Business Patterns 2023 and ACS 2023 5-year estimates.