How to Check If a Contractor Is Licensed in Missouri (the Answer Surprises People)
Revised July 27, 2026
How do you check if a contractor is licensed in Missouri?
You can’t — there is no state database to check. Missouri issues no statewide license for general contractors, plumbers, or HVAC contractors, so the standard advice to “look them up on the state board” describes something that doesn’t exist here. Licensing happens at the city level instead, and St. Louis County alone holds 80+ municipalities with separate rules. To verify someone: find which city governs your address, call that permit office, and ask whether the company is current. ⚠️ Then ask who pulls the permit — if they want you to pull it as the homeowner, that usually means they can’t.
Keep reading ↓How do you check if a contractor is licensed in Missouri?
Search that question and you will get a wall of official-looking answers, nearly all of them useless to you. We pulled the live results for this exact phrase from a Missouri location, and page one was nine different state license lookup portals — California, Washington, Florida, South Carolina, New Jersey, Tennessee, Virginia, Minnesota, North Carolina.
Missouri was not among them. Not lower down, not on page two. Missouri has no statewide licensing board for general contractors, plumbers, or HVAC contractors, so there is no state database to search. The advice everyone gives — “just check the state license board” — describes a thing that does not exist here.
That is not a loophole or an oversight anyone is hiding. Bills to create statewide contractor licensing have been introduced in Jefferson City repeatedly and have not passed. So the verification job falls to you, and it works differently than it does almost anywhere else.
What Missouri does license, and what it doesn’t
The distinction matters, because “unlicensed” sounds alarming until you understand it is often just how the state is organized.
The state does license a long list of professions through its Division of Professional Registration — electricians in some contexts, elevator mechanics, engineers and architects, cosmetologists, and many health professions. If your project needs a licensed design professional, there is a state record to check.
The state does not license general contractors, remodelers, plumbers, HVAC contractors, roofers, painters, or handymen. There is no state exam, no state number, no state complaint history. Home inspectors are not licensed by the state either — a fact worth knowing before you rely on an inspection report.
So when a roofer tells you they are “fully licensed,” the honest follow-up is: licensed by whom? The answer should be a city. If they cannot name one, that is your first real signal.
Where the license actually lives: your city hall
Missouri pushes this work down to local government, and in the St. Louis metro that means it is fragmented to an unusual degree.
The City of St. Louis licenses contractors directly through its License Collector, with its own application and its own requirements. If work is happening inside the city limits, that is where the record is.
St. Louis County is not one jurisdiction. It holds more than eighty separate incorporated municipalities — the published count runs 84 or 88 depending on whether villages are counted — plus unincorporated territory. Kirkwood, Clayton, Florissant, Webster Groves, Chesterfield and the rest each write their own contractor rules. Some require a bonded registration or a master’s card. Some require little.
The practical consequence: a contractor can be perfectly licensed for the job they did last week and not licensed for yours, purely because your house sits in a different municipality. This is not misconduct. It is the structure. It also means the only license that matters to you is the one valid where your address is.
How to actually verify a contractor here
Since there is no portal, the sequence is manual. It takes about twenty minutes and it works.
1. Find out which city governs your address. Do not assume. A “St. Louis, MO” mailing address frequently sits in a county municipality with entirely separate rules. Get this right first or every other step points at the wrong office.
2. Call that city’s permit or building office and ask two questions. Does this trade require a license or registration here? And is this specific company current? Permit desks answer this routinely — it is not an unusual request, and they will tell you.
3. Ask who is pulling the permit. This is the highest-value question on this page. A licensed contractor pulls the permit in their own name. If they suggest you pull it as the homeowner, understand what that means: liability shifts to you, inspections become your responsibility, and the arrangement is frequently a sign the contractor cannot pull one. Occasionally there are legitimate reasons. Usually there are not.
4. Verify insurance directly with the insurer, not the contractor. Ask for the certificate, then call the number on it. A certificate is a PDF; anyone can edit a PDF. The insurer will confirm the policy is active in about a minute. Ask for general liability and, if they have employees, workers’ compensation — without the latter, an injury on your property can become your problem.
5. Check the paper trail that does exist. No state board does not mean no record. Look at Better Business Bureau complaint history, Missouri Attorney General consumer complaints, and county court records for judgments and mechanic’s liens. Court records are public and are far more revealing than reviews.
6. Ask for two recent local addresses. Not a reference list — specific jobs in your area within the last year. A contractor working steadily nearby can produce them without effort. One who hesitates is telling you something.
What to weigh instead of a state license
Because the state signal is missing, other signals carry more weight here than they would in California or Florida:
- Whether they pull permits as a matter of course. The single strongest indicator of a legitimate operation.
- Insurance you confirmed yourself. Not a certificate you were handed.
- How long they have worked in this metro. A contractor who has been doing this in the same municipalities for a decade has passed inspections there repeatedly.
- Trade certifications the state doesn’t require. Manufacturer certifications, trade association membership, EPA certification for refrigerant work. Voluntary credentials mean more where mandatory ones are absent.
- A written contract with a defined scope. Missouri does not hand you a licensing board to complain to, so your contract is your protection.
The lien notice: a verification test almost nobody knows
This one is worth the whole page, and most homeowners have never heard of it.
Under Chapter 429 of the Missouri statutes, a general contractor is required to give the property owner a conspicuous written notice about mechanic’s liens — in at least 10-point type — at the front end of the project. Not at the end. Not buried in an invoice. Up front, as a matter of law.
Which hands you a clean test. A contractor who gives you that notice unprompted is running a real operation. One who has never heard of it is telling you how they work, without meaning to. You do not have to be confrontational about it — just notice whether it arrives.
And here is why it exists, which is the part that should get your attention: in Missouri, a subcontractor who does not get paid can place a lien on your house even if you already paid the general contractor in full. Your payment to the contractor only offsets the claim to the extent of what was actually paid through. If your GC pockets the money and stiffs the drywall crew, the drywall crew’s claim can land on your title. Subcontractors must give you ten days’ notice before filing, stating the amount and who owes it — so if a letter like that ever arrives, it is not junk mail.
The protection is straightforward and you should ask for it every time: lien waivers from every subcontractor and supplier, collected before you release final payment. A contractor who works this way already has a process for it. A contractor who reacts badly to the request has just answered a question you were going to have to ask eventually.
In a state with a licensing board, some of this gets screened out before you ever meet the person. Missouri does not have that filter. Which is exactly why the paperwork habits — permits, notices, waivers — carry so much more signal here than a friendly estimate does.
Red flags that matter more in a no-license state
Some warning signs are universal. These three are sharper here, precisely because there is no board doing any screening for you:
A large deposit up front. Materials deposits are normal. Half the job before anyone shows up is not. Without a licensing authority, there is no fast administrative remedy if the crew never returns — your recourse is civil court.
Storm-chasers after severe weather. Hail and wind events reliably bring out-of-state crews into the metro. They are often not licensed in your municipality, may not be insured locally, and are gone before problems surface. Ask where their office is and how long they have worked in your city.
Cash-only, no contract, no permit. Any one of these is a caution. All three together is not a discount — it is an operation with nothing to lose. If the work fails inspection later, or shows up as an unpermitted improvement when you sell, the cost lands on you.
If you are the contractor reading this
The same gap cuts against you. Homeowners here have no state directory that proves you are legitimate, which means an established, insured, permit-pulling business looks identical online to someone who started last Tuesday. Nothing sorts you apart automatically.
So the sorting has to be something you do. Name the municipalities you are licensed in. Say plainly that you pull your own permits. Put your insurance status and your years in the metro where people can see them before they call. In a state with no license lookup, being easy to verify is the competitive advantage — and most of your competitors are not bothering.
Worth knowing what you owe on the paperwork side too: our guide to business licenses in St. Louis covers the city versus county split and what each actually costs.
Frequently asked questions
Does Missouri require a contractor license?
Not at the state level. Missouri issues no statewide license for general contractors, plumbers, or HVAC contractors, and has no state board that maintains a lookup. Licensing is handled by individual cities and counties, so requirements change from one municipality to the next — and a contractor may hold several.
How do I verify a contractor in St. Louis?
Identify the municipality your address falls in, then call that city’s permit or building office and ask whether the trade requires licensing there and whether the company is current. Confirm insurance by calling the insurer directly rather than trusting the certificate. Then check BBB history, Missouri Attorney General complaints, and county court records for liens or judgments.
Is it legal to hire an unlicensed contractor in Missouri?
Because there is no statewide license, “unlicensed” usually means not registered with a specific city rather than breaking state law. The real risk is practical: work that never gets permitted or inspected can fail, may surface as an unpermitted improvement when you sell, and leaves you with civil court as your only recourse.
Should I pull the permit myself as the homeowner?
Generally no. Homeowner-pulled permits shift responsibility for inspections and code compliance to you, and a contractor who asks for this is often unable to pull one themselves. There are occasional legitimate reasons, but treat the request as a question to be answered rather than a convenience.
What should I check if there is no state license to look up?
Weight shifts to what you can verify yourself: whether they pull permits in their own name, insurance you confirmed with the insurer, how long they have worked in your specific municipalities, voluntary trade certifications, and a written contract with a defined scope. Court records and complaint history fill in the rest.
Can a subcontractor put a lien on my house if I already paid the contractor?
Yes. Under Missouri's Chapter 429, payment to the general contractor only offsets a claim to the extent it was actually paid through. If your contractor doesn't pay a subcontractor or supplier, that party can pursue a lien against your property. Subcontractors must give you ten days' notice before filing. Collect signed lien waivers from every sub and supplier before releasing final payment.
Does Missouri license home inspectors?
No. Home inspector does not appear among the state’s licensed professions, and bills to create licensing have not passed. Look for ASHI or InterNACHI certification instead, since those impose exams and continuing education that state law does not require.
Run a trade business in the St. Louis metro? Missouri gives homeowners no license lookup to check you against — which means a fifteen-year, fully insured operation looks exactly like a stranger with a truck. Being easy to verify is the whole advantage here, and most of your competition isn’t doing it. Listing your business takes a few minutes.
Also worth reading: what home inspections miss here and old-house wiring. Or browse local pros on St Louis Near Me Directory.
Written by a dedicated team of St. Louis locals who live, work, and play right here in the St. Louis metro. Founder Lane Forman and team are committed to building the region’s most trusted directory by verifying listings and connecting local businesses with loyal customers across Missouri and Illinois.