Vendor Compliance · Kentucky
Vetting a Kentucky Plumbing Vendor: Licence and Insurance
Kentucky plumbing licence requirements carry two details that break most vendor-compliance files. The licence is void the moment the required general liability insurance lapses — not merely out of compliance, void — and it expires on the last day of the licensee’s birth month, not on any calendar-year date. A compliance calendar built on January renewals is wrong for roughly eleven vendors in twelve.
What must a Kentucky plumbing vendor hold?
An active master or journeyman plumber’s licence, plus at least $250,000 in general liability insurance and proof of workers’ compensation and unemployment compliance.
KRS 318.030(1) is written as a flat prohibition: “No person shall engage in plumbing or engage in or work at the trade of plumbing” unless they hold a valid and effective active master plumber’s licence or a valid and effective journeyman plumber’s licence issued by the department. Two licence classes, both named, no third category.
Subsection (2)(a) adds the money side, and it reaches the business entity as well as the individual: “No person, firm, or corporation shall engage in plumbing or engage in or work at the trade of plumbing unless the person, firm, or corporation maintains general liability insurance in an amount not less than two hundred fifty thousand dollars ($250,000) and submits proof of compliance with workers’ compensation and unemployment insurance laws of the Commonwealth.” That figure is a floor set in 2010, effective July 15, 2010 — it is a minimum to be legal, not a benchmark of adequacy for a commercial building.
Why a lapsed policy voids the licence
Because the statute says so directly. KRS 318.030(2)(c): “No license shall be valid without insurance as required in this subsection.”
The same subsection builds the enforcement loop: “insurance carriers shall notify the department upon cancellation of the insurance of any licensee required to maintain insurance.” And under (2)(b), proof of insurance goes to the department before the active master plumber licence is issued or renewed. So the licence and the policy are not two independent documents in your file — one is a condition of the other, continuously.
That changes what a certificate of insurance is for. A COI proves coverage existed on its issue date. It does not prove the policy is still in force today, and in Kentucky plumbing the policy being in force is what keeps the licence valid. The practical answer is a licence verification at the department rather than a COI on file, repeated — because the licence lookup is the field that moves when the insurance stops.
One exclusion to note so you do not over-collect: under (2)(d) the insurance requirement “shall not apply to an employee of a person, firm, or corporation engaged in plumbing.” You verify the entity’s coverage and the individual’s licence — not a separate policy from every journeyman who turns up.
In Kentucky plumbing, the insurance is not a document beside the licence. It is a condition of it.
When does a Kentucky plumbing licence expire?
On the last day of the licensee’s birth month. KRS 318.054(1) sets the initial licence to expire “on the last day of the licensee’s birth month in the following year,” and renewals annually on the same date.
This is the single most useful line in the chapter for anyone running a vendor rotation, and it is almost never reflected in a compliance tracker. The statute also lets the department reduce the licence fee on a pro rata basis where an initial licence is issued for less than twelve months — which is why a newly licensed vendor’s first expiry can look oddly close.
| What to verify | Statutory basis | How often |
|---|---|---|
| Active master or journeyman licence, by name | KRS 318.030(1) | At onboarding and before each dispatch window |
| General liability of at least $250,000 on the entity | KRS 318.030(2)(a) | At onboarding, then at the policy anniversary |
| Workers’ compensation and unemployment compliance proof | KRS 318.030(2)(a) | At onboarding, then annually |
| Licence still valid — i.e. insurance never lapsed | KRS 318.030(2)(c) | Continuously; a licence lookup is the live signal |
| Expiry date keyed to the licensee’s birth month | KRS 318.054(1) | Set the diary per licensee, not per calendar year |
| Continuing education completed at renewal | KRS 318.054(2) | At each renewal |
On that last row: KRS 318.054(2) requires the department to make a renewal applicant “show evidence of completing the continuing education requirements established by the department in administrative regulations promulgated under KRS 318.130.” The continuing-education content is set by regulation rather than by statute, so the amount can change without the statute changing — check the current regulation rather than a remembered number.
How this fits a multi-building maintenance file
The failure mode in property maintenance is not hiring an unlicensed plumber on purpose. It is a file that was correct at onboarding and quietly stopped being correct. Licence expiries scattered across twelve different birth months, a general liability policy that renewed at a lower limit, a COI that aged out while the vendor kept answering the phone — each of those is invisible until a loss, and then the question is what the owner’s file showed on the date of the work. The process that survives an audit is unglamorous: verify the licence by name at the department, record the expiry date the statute actually uses, and re-verify rather than re-file. Statutes change; this page describes KRS 318.030 and KRS 318.054 as read on the date below, and licensing questions about a specific contractor belong with the Kentucky Department of Housing, Buildings and Construction.
The same verification discipline runs through our approved vendor process, and how scope and rates are set is on how we price. For interior trades work across a portfolio, see commercial interior repairs.
Questions that follow
Is a journeyman plumber enough, or do we need a master?
KRS 318.030(1) accepts either an active master or an active journeyman licence for engaging in the trade. The insurance-proof condition in (2)(b) is tied specifically to issuance or renewal of the active master plumber licence, which is why the entity’s master licence is the one to verify for an entity.
Does $250,000 of general liability satisfy our owner’s insurance requirement?
It satisfies Kentucky’s statutory minimum in KRS 318.030(2)(a). Whether it satisfies a specific owner, lender or lease requirement is a separate question — those limits are commonly set well above the statutory floor, and the controlling document is your contract, not the statute.
Our vendor’s licence number checks out. Is that the end of it?
A number on a card and a valid licence are not the same thing. Because KRS 318.030(2)(c) makes no licence valid without the required insurance, and carriers must notify the department on cancellation, the department’s current record is the fact to rely on rather than a document in your folder.
Sources: KRS 318.030, License and general liability insurance required, and KRS 318.054, License expiration — Notice — Renewal and revival fees — Evidence of completion of continuing education, read from the Kentucky Legislative Research Commission on October 31, 2026. Central Property Services and Central Roof Repair are both owned by Marcos Gil; roofing work is handled by Central Roof Repair, not by Central Property Services.
Last updated October 31, 2026.
By Marcos Gil, REALTOR® — Keller Williams Commonwealth · KY Real Estate License No. 296259 · Call or text (859) 310-1209.