Kentucky · plumber licensing · verified July 2026
Kentucky plumber license requirements
The short answer
As of July 2026, Kentucky licenses plumbers statewide through the Division of Plumbing in the Department of Housing, Buildings and Construction (HBC). Journeyman licensure requires two consecutive years of experience as an apprentice plumber (or an approved plumbing course plus one year of apprenticeship) and a written-plus-practical state exam; master licensure requires holding a journeyman license for at least two of the past five years while actively employed under a licensed master plumber, plus the master exam. Licenses renew annually on the licensee's birth month with 6 hours of continuing education.
Do you need a license to work as a plumber in Kentucky?
Kentucky licenses plumbers statewide, so one credential is valid across the whole state.
Fees and experience prerequisites are quoted from 815 KAR 20:030 on the official Kentucky Legislature site; exam logistics from dhbc.ky.gov. CE hours come from the current engrossed text of 815 KAR 2:010 downloaded from the Legislature's site, it sets the default 6 hours for HBC licensees including master and journeyman plumbers (the older plumber-specific 815 KAR 20:032 requiring 8 hours now shows 'Not available' on the LRC site, indicating it has been superseded/repealed; secondary sources still citing 8 hours are outdated). Passing-score figures (75%/80%) circulate in secondary sources but were not verified on an official page, so they are omitted.
What licenses does Kentucky issue?
The Kentucky Department of Housing, Buildings and Construction, Division of Plumbing issues the credentials below for this trade. Boards often list further classes for specialties and business licenses; these are the ones this page covers.
Hours are what each class asks for on its own terms. Where a senior class shows fewer than a journeyman, the board is counting time served after the earlier license rather than from the start; the prerequisite column says which.
| License | On-the-job hours | Classroom hours | Exam |
|---|---|---|---|
| Journeyman Plumber | not published | not published | Yes |
| Master Plumber | not published | not published | Yes |
Source: Kentucky Department of Housing, Buildings and Construction, Division of Plumbing (apps.legislature.ky.gov). Verified July 2026.
What exam does Kentucky require?
Kentucky Journeyman Plumber Examination (written + practical, 2.5 hours each portion). Administered by Kentucky HBC Division of Plumbing (state-administered; apply to Frankfort office at least 3 weeks before exam date). Exam fee $50.
Kentucky Master Plumber Examination (written, maximum 2.5 hours). Administered by Kentucky HBC Division of Plumbing (state-administered). Exam fee $150.
How much does a Kentucky plumber license cost?
Getting a Journeyman Plumber license in Kentucky costs $110 in board fees, before any training. That is the exam fee and the initial license fee charged once, with renewal charged separately below. No board publishes this total, so it is added up here from the schedule it does publish.
- Exam fee$50
- Initial license fee$60
- Renewal fee (recurring)$60
How often do you renew, and what continuing education is required?
Renewal period: 1 year, license expires on the final day of the licensee's birth month
Continuing education: 6 hours annually prior to renewal (815 KAR 2:010, current department-wide CE regulation covering master and journeyman plumbers): topics must relate to business, job safety, the Kentucky State Plumbing Code, or the plumbing trade; no more than 2 hours of safety per 12-month period counts; excess hours may carry forward up to 12 total; CE waived for first renewal if the initial license was issued within 12 months of renewal
How does the apprenticeship route work?
Apprentice experience is the entry path: 2 consecutive years as an apprentice plumber qualifies an applicant for the journeyman exam (or an approved plumbing course plus 1 year apprenticeship). Kentucky measures the requirement in years, not hours.
Which states does Kentucky have license reciprocity with?
No published agreement for this trade names Kentucky. That is not the same as a closed door: states without a published list usually take out-of-state applicants through an endorsement or equivalency review instead, decided case by case on the requirements set out above.
How does Kentucky compare to neighboring states?
Requirements stop at the state line, which matters if you live near one or expect to move. Here is what the neighboring states ask of the same trade.
| State | Journeyman hours | Licensing model |
|---|---|---|
| Kentucky | not published | Statewide |
| Illinois | not published | Statewide |
| Indiana | not published | Statewide |
| Missouri | not published | City or county |
| Ohio | not published | Contractor level only |
| Tennessee | not published | Contractor level only |
| Virginia | not published | Statewide |
| West Virginia | not published | Statewide |
Source: state licensing boards. Verified July 2026.
Sources and verification
Every fact on this page traces to one of these
- 815 KAR 20:030 - License fees, examinations
- Kentucky HBC Division of Plumbing - exam and license information
- 815 KAR 2:010 - Continuing education requirements (official engrossed text downloaded from Kentucky Legislature)
Last verified July 2026. Found an error? Report it and it will be corrected and logged on the corrections page.
Other states with published requirements for this trade: Louisiana, Maine, Maryland.
Price the whole path with the license cost estimator, or weigh earning against paying for school with the apprenticeship comparison. Back to plumbers overview.
Licensing requirements change between our verification sweeps. This page is informational only, so confirm current requirements with Kentucky Department of Housing, Buildings and Construction, Division of Plumbing before making decisions. Not legal advice.