Kentucky Plumber License Verification

Why Verification Matters

Hiring an unlicensed plumber in Kentucky is not just a quality risk — it is a legal exposure. Under KRS Chapter 318, compensated plumbing work performed without the required credential, master-plumber supervision, or permit can result in civil penalties of up to $1,000 per day and stop-work orders. If you hire someone who turns out to be unlicensed and they damage your plumbing system, you may have limited legal recourse.

For contractors and general contractors, verifying a subcontractor's license status before they touch a job site is a baseline compliance step. The DHBC can hold the permitting master plumber accountable for work performed by unlicensed individuals under their supervision.

How to Use the DHBC License Search

The Department of Housing, Buildings and Construction maintains an online license verification portal where you can look up any master plumber, journeyman, or plumbing inspector in the state.

To search:

1. Go to the DHBC license search page (HBC License Search on dhbc.ky.gov)
2. Select the license type — plumbing is listed separately from electrical and HVAC
3. Enter the licensee's name or license number
4. Review the results, which show the license status (active, inactive, delinquent, or expired), the license class (journeyman or master), and the expiration date

The portal shows current status only. If you need historical licensing records or want to verify whether a specific license was active during a past period, contact the DHBC Division of Plumbing in Frankfort directly.

What the License Statuses Mean

Active: The plumber holds a valid, current license and has met all renewal and continuing education requirements. They are authorized to perform work within the scope of their license class.

Delinquent: The license has expired but has not been formally revoked. The plumber has missed their renewal deadline (the last day of their birth month) and cannot legally work until they pay the renewal fee, late fee ($5 for masters, $3 for journeymen), and complete all delinquent CE hours.

Inactive: The plumber has voluntarily placed their license on hold by paying an inactive fee. They cannot perform plumbing work, pull permits, or advertise services while inactive. Inactive status exempts them from continuing education requirements.

Suspended/Revoked: The plumber has been subject to disciplinary action by the State Plumbing Board. Do not hire a plumber whose license shows this status.

Verifying More Than the License

A valid plumber license does not automatically mean someone can contract for work in your area. In Kentucky, only master plumbers can pull permits — journeymen cannot. And a master plumber operating a business must have a registered business entity with the state, a Letter of Representation on file with the DHBC, and current insurance.

For commercial projects in Louisville, the contractor also needs a local contractor license (Type A or Type B) through Louisville Metro's Department of Codes and Regulations. In Lexington-Fayette County, state-licensed plumbers can register with LFUCG at no cost, but they still need a local business license.

If you are navigating Kentucky's plumbing licensing system as a practitioner — whether verifying your own status, preparing to renew, or planning to upgrade your credential — the Kentucky Plumber License Guide covers the complete compliance framework.

See more Kentucky guides →