The essentials
- Licensing authorityOhio Construction Industry Licensing Board (OCILB), Ohio Department of Commerce — Division of Industrial Compliance — official site
- Statewide?Yes — Ohio licenses at the state level
- Experience requiredNot stated in hours — the state contractor license requires at least five years in the plumbing trade as a tradesperson immediately before application, or registration as a professional engineer with three years of plumbing business experience
- ExamPSI — applicants approved by the board receive a PSI Candidate Information Bulletin and must pass both a trade exam and a Business & Law exam
- Renewal & CEAnnual renewal; a licensee holding one or more plumbing licenses under ORC Chapter 4740 must complete ten classroom hours of board-approved continuing education each year, and the license is suspended automatically if CE is not met by the expiration date
- Bond / insuranceMinimum $500,000 contractor liability insurance, evidenced by a certificate of liability insurance filed with the board
- ReciprocityWest Virginia, South Carolina
License classes in Ohio
Ohio issues the following classes. Getting the class right matters — several states have residential-only or limited-scope licenses that will not cover commercial or multifamily work:
- Plumbing Contractor (commercial) — the state-level license issued by OCILB under ORC Chapter 4740
- Journeyman / residential plumber — not licensed by the state; issued by individual cities and counties where required
Experience and training
Not stated in hours — the state contractor license requires at least five years in the plumbing trade as a tradesperson immediately before application, or registration as a professional engineer with three years of plumbing business experience
One thing worth knowing regardless of state: the hours only count if they were logged properly at the time. Several boards require you to register as an apprentice before the clock starts, and hours worked while unregistered are simply gone. If you are early in the trade, get the registration paperwork right now rather than reconstructing it four years later.
The exam
PSI — applicants approved by the board receive a PSI Candidate Information Bulletin and must pass both a trade exam and a Business & Law exam
Renewal and continuing education
Annual renewal; a licensee holding one or more plumbing licenses under ORC Chapter 4740 must complete ten classroom hours of board-approved continuing education each year, and the license is suspended automatically if CE is not met by the expiration date
Letting a license lapse is more expensive than it looks. Some states allow a short grace period with a penalty fee; others treat a lapsed license as forfeited and make you retest from scratch. Put the renewal date in your calendar with a 90-day warning, not a 7-day one.
Insurance and bonding
Minimum $500,000 contractor liability insurance, evidenced by a certificate of liability insurance filed with the board
Separately from whatever the state requires: Pipe Well requires every plumber on the network to carry current general liability insurance and to upload the certificate before the first appointment is sent.
Working across state lines
Ohio has reciprocity or endorsement arrangements involving West Virginia, South Carolina. Reciprocity almost never means "your license is automatically valid here" — in practice it usually waives the trade exam while you still file a full application, pay the fees and meet the insurance and continuing-education rules. Confirm the current terms with the board before you rely on it.
What plumbers actually get wrong here
Ohio's state license covers commercial plumbing only — residential-only work and journeyman cards are handled by local jurisdictions, so a state license does not remove local registration and permit obligations. OCILB publishes dedicated reciprocity applications for West Virginia and South Carolina licensees (grandfathered WV licenses do not qualify); confirm any other state's status directly with the board.
Once you are licensed: getting the work
A license gets you legal. It does not get you a full schedule. The usual next step is buying leads — $40 to $85 for a contact that three or four other shops bought at the same moment, which at a realistic 10–20% close rate works out to somewhere between $300 and $1,000 for every job you actually book, plus the unpaid hours spent chasing the ones that go nowhere.
Pipe Well works the other way round. We book appointments, not leads, and we handle everything up to the moment you knock on the door: the advertising, the phone call, qualifying the job, getting the address and access details, and agreeing a date and time window with the homeowner. What reaches your phone is a scheduled appointment — name, address, time window and what is wrong. You reply YES and it is yours.
What it costs
Nothing to join. No subscription, no per-lead charge. You do the job, you set your own price, and you collect payment from the customer directly. Then Pipe Well is paid 50% of the job after your documented materials come off the top:
(amount collected − documented materials) × 50%
| Collected | Materials | Net | Pipe Well | You keep |
|---|---|---|---|---|
| $400 | $40 | $360 | $180 | $220 |
| $1,200 | $520 | $680 | $340 | $860 |
| $2,800 | $800 | $2,000 | $1,000 | $1,800 |
| $8,500 | $3,200 | $5,300 | $2,650 | $5,850 |
Due within 48 hours of the customer paying you. If they never pay, you owe nothing. And look honestly at that last row — on a big repipe our share is a large number. If your book is already full of $8,500 jobs you are better off filling that capacity yourself. We are worth most to a shop with open capacity it cannot currently fill.
Apply free → Run your own numbersQuestions plumbers ask about licensing in Ohio
Do you need a license to do plumbing work in Ohio?
Yes. Ohio Construction Industry Licensing Board (OCILB), Ohio Department of Commerce — Division of Industrial Compliance is the licensing authority for Ohio. Ohio's state license covers commercial plumbing only — residential-only work and journeyman cards are handled by local jurisdictions, so a state license does not remove local registration and permit obligations. OCILB publishes dedicated reciprocity applications for West Virginia and South Carolina licensees (grandfathered WV licenses do not qualify); confirm any other state's status directly with the board.
Who issues the plumbing license in Ohio?
Ohio Construction Industry Licensing Board (OCILB), Ohio Department of Commerce — Division of Industrial Compliance. The official site is https://com.ohio.gov/divisions-and-programs/industrial-compliance/boards/ohio-construction-industry-licensing-board.
What license classes exist in Ohio?
Plumbing Contractor (commercial) — the state-level license issued by OCILB under ORC Chapter 4740. Journeyman / residential plumber — not licensed by the state; issued by individual cities and counties where required.
How many hours of experience do you need for a Ohio plumbing license?
Not stated in hours — the state contractor license requires at least five years in the plumbing trade as a tradesperson immediately before application, or registration as a professional engineer with three years of plumbing business experience
Who administers the Ohio plumbing exam?
PSI — applicants approved by the board receive a PSI Candidate Information Bulletin and must pass both a trade exam and a Business & Law exam
How often does a Ohio plumbing license renew?
Annual renewal; a licensee holding one or more plumbing licenses under ORC Chapter 4740 must complete ten classroom hours of board-approved continuing education each year, and the license is suspended automatically if CE is not met by the expiration date
Can I get booked plumbing appointments in Ohio once I am licensed?
Yes. Pipe Well Plumbing books customer appointments in Ohio and texts them to licensed plumbers whose service radius covers the address. Joining is free — no subscription and no per-lead fee. Pipe Well is paid 50% of the job after your documented material costs are deducted, and only after the customer has paid you.
Booked appointments in Ohio
Set your ZIP and a service radius of at least 30 miles and we will match appointments inside it. Free to join.
Join Free → Plumbing jobs in OhioPlumbing license requirements in other states
Compiled from Ohio Construction Industry Licensing Board (OCILB), Ohio Department of Commerce — Division of Industrial Compliance published materials, last reviewed July 2026. Where a figure could not be verified against a primary source we have said so rather than estimate it. Spotted something out of date? Email info@pipewellplumbing.com and we will correct it.