How to Verify a Licensed Plumber in Utah

Step by step

1. Get their exact name before they arrive. Ask for the business name (or the individual plumber's name) exactly as it appears on their license, and the license number if they have it handy. Do this before they show up, not after.
2. Go to Utah's public license lookup tool. Open secure.utah.gov/llv/search/index.html in a browser — this is the Utah Division of Professional Licensing's (DOPL) free public verification tool.
3. Search by business name, individual name, or license number. Enter whichever you have. You can optionally filter by profession to narrow the results if a common name returns several matches.
4. Check the license status. Confirm the result shows "Active" — not inactive, expired, restricted, or "Active on Probation." An expired or inactive license is a reason to ask questions before hiring, not a technicality to ignore.
5. Check the classification. Confirm the classification listed covers plumbing work. Utah licenses plumbing contractors under more than one classification depending on the scope of work they cover — ask the company directly to explain which one they hold and why it covers your specific job, rather than assuming.
6. Check for disciplinary history. The same result shows any citations, probation, suspensions, or revocations on record. If you see something and want more context, DOPL can be reached directly at (801) 530-6628.

Why this matters in Utah specifically

Utah law defines "contractor" broadly enough to include anyone who represents themselves as one through advertising — on a website, on social media, or otherwise (Utah Code 58-55-102(17)). That's a meaningful legal bar for anyone offering plumbing work, which is exactly why relying on a truck wrap, a website claim, or a handshake isn't the same as actually checking. The five-minute lookup above is free and public — there's no reason not to use it.

What the "classification" field means

Utah's plumbing contractor licensing isn't one single, undifferentiated license — DOPL splits it into different classification levels depending on the scope of work a contractor is licensed to perform, and the specific requirements can differ by scope. We haven't independently confirmed the exact classification codes against DOPL's own listing as of this writing, so we're deliberately not publishing specific code numbers here that we can't personally vouch for. What you can do instead: ask the plumber directly which classification they hold and why it covers your specific job, then confirm it yourself in the same lookup tool above. A legitimate business should be able to answer that plainly, without hesitation.

Red flags

• They won't give you a license number, or hesitate when you ask to verify it
• The name on the license doesn't match what's on their truck, invoice, or contract
• The lookup shows the license as expired, inactive, or restricted
• They push back on the check itself — "we're already inside, does it matter now?"

What to do if you find a problem

If the license doesn't check out, you have options: ask the company to explain the discrepancy directly, choose a different provider, or file a complaint with DOPL if you believe you were misled. None of these require confrontation in the moment — you can always say you need a few minutes to check something and step away to look it up.

This applies to every plumber — including ones we refer

That includes any plumber St. George Plumber Pro matches you with, or any company on our best licensed plumbers comparison — verify every one of them yourself using the tool above before you hire, not just the ones you find on your own.

Common questions

Does DOPL charge for the lookup? No — the public search tool at secure.utah.gov/llv is free to use.

What if I can't find them at all? Try searching by business name and individual name separately, and double-check the spelling. If they still don't appear, ask them directly and consider it a real red flag if they can't resolve it.

Does a valid license mean they're insured too? Not necessarily — licensing and insurance are separate. Ask to see proof of insurance separately if that matters to you for the specific job.