MO · Reviewed 2026-10-07

Missouri licensing for homeowners

Board lookups, licence classes, contract rules, and the verification routine — sourced to state law and official registries.

State: Missouri
Boards listed: 3
Licence classes: 4

Verify with the board — last reviewed 2026-10-07

Licensing rules change and cities add requirements on top of state law. Use this page as orientation; the lookup links below are the authoritative check before you sign a contract.

Who must be licensed in Missouri

Missouri is a heavily local licensing state for construction trades. There is no single statewide residential general contractor licence comparable to California’s CSLB system. Kansas City, St. Louis, and many municipalities license electrical, mechanical, and plumbing contractors within their borders, while much of rural Missouri relies on county permit offices and subcontracted licensed trades. The Attorney General enforces home-repair fraud statutes when contractors misrepresent licences or insurance. Before you pay a deposit, identify the city or county where the property sits, verify credentials in that jurisdiction’s contractor database, and separately confirm state or municipal trade licences for electrical, plumbing, and HVAC scope.

Licensing boards and lookups

State licensing authorities for Missouri
Authority	Scope	Lookup
Missouri Professional Registration — Licensee search 573-751-0293	State-regulated occupations; many construction trades are municipal — use city lookups for KC and St. Louis.	Verify licence →
City of Kansas City — Licensed contractors	Kansas City electrical and mechanical contractor licences (city jurisdiction).	Verify licence →
City of St. Louis — License collector / building division	St. Louis city contractor and trade requirements.	Verify licence →

Licence classes and what they authorize

Kansas City trade contractor — KCMO licensed contractor
Permit pulling for regulated trades within Kansas City limits per city code.
St. Louis contractor licence — City of St. Louis credentials
Construction and trade work within the city’s permitting jurisdiction.
State professional licences — PR.mo.gov occupations
Specific state-regulated professions — confirm whether your trade is state or city regulated.
County / suburban permits — Local building official
Permits in unincorporated counties and suburbs — often requires licensed subcontractors for trades.

Verify a licence in about two minutes

Determine whether the job site is in Kansas City, St. Louis City, St. Louis County, or another jurisdiction — the lookup tool changes.
For Kansas City work, use the city’s contractor licence search and match licence category to your scope.
For St. Louis City work, confirm business and trade credentials with the building division.
In suburbs and rural counties, ask the county permit office which trade licences they accept and verify each subcontractor.
Search pr.mo.gov when the worker claims a state professional licence.
Request insurance certificates from the carrier and confirm workers’ compensation compliance.

Contractor hiring checklist

Insurance and bond minimums

Municipal programmes often require general liability insurance and proof of workers’ compensation before issuing contractor licences or permits. Kansas City and St. Louis may set minimum limits. Always verify policies directly with the insurer.

Who issues permits

Missouri adopts construction codes at the state level but enforces them locally. Each city or county building department issues permits, sets fees, and schedules inspections. There is no one state permit office for a typical home remodel.

Homeowner permits — can you pull one, and should you

Many jurisdictions allow owner-occupiers to pull permits for work on their own home with affidavits. Regulated electrical, plumbing, and gas work still requires licensed contractors in cities that license those trades. Owner permits increase your liability for code compliance.

Deposits, cancellation rights, and liens

Deposit rules: Missouri does not impose a universal statewide deposit percentage cap. The Merchandising Practices Act and home-repair fraud statutes still prohibit misrepresentation — get progress payments in writing.
Rescission / cooling-off: Door-to-door home repair contracts may include federal Cooling-Off Rule cancellation rights when applicable. Keep cancellation notices with your contract file.
Mechanic's lien timeline: Missouri mechanic’s lien law (RSMo Chapter 429) requires strict filing and enforcement deadlines. Residential owners should use conditional lien waivers at each payment.

Where to file a complaint

Report home-repair fraud and deceptive practices to the Missouri Attorney General Consumer Protection Division. Licence discipline in Kansas City or St. Louis goes through those cities. Permit violations go to the local building official.

File a complaint with the state →

If you hire someone unlicensed

Unlicensed trade work in cities that require licences can fail inspection and void insurance coverage for related losses. Fraudulent contractors may disappear after large deposits — verify local licences before paying.

Which trades need a licence here

Trade licensing status in Missouri
Trade	Status	Notes
Electrician	Local licence	Typically city or county licence — Kansas City, St. Louis, and suburbs differ.
Plumber	Local licence	Typically city or county licence — Kansas City, St. Louis, and suburbs differ.
HVAC / refrigeration	Local licence	Typically city or county licence — Kansas City, St. Louis, and suburbs differ.
General contractor / remodeler	Local licence	Municipal registration or permit rules — no statewide residential GC licence.
Roofer	Varies	May be a dedicated roofing licence, a general building classification, or local registration only.
Carpenter / handyman	No individual licence	No individual trade licence in most states; scope limits and contractor registration still apply to the business pulling permits.

Reciprocity

Kansas City and St. Louis generally do not honor out-of-city licences automatically. Kansas and Illinois contractors working in Missouri must meet local permit and licence rules for the job site address.

Cities and counties with an extra layer

Kansas City, St. Louis City, St. Louis County, Springfield, Columbia, and Independence each maintain contractor licensing or registration programmes beyond state business filings.

Trade hubs

Cost guides

Metro pages

For contractors — getting and renewing a licence

Register with the city that matches your work territory before advertising or pulling permits. Maintain insurance and renewal dates so municipal lookups show active status. Subcontract IPLA- or city-licensed trades when your licence class does not cover electrical, plumbing, or HVAC scope.

Trade-owner resources →

Common questions — Missouri

Does Missouri require a statewide general contractor license?

No. General contracting is primarily regulated through local permit offices and municipal contractor programmes in Kansas City, St. Louis, and other cities — not through one state GC exam.

How do I verify a Kansas City electrical contractor license?

Use the City of Kansas City contractor licensing lookup for work inside city limits. Match the licence type to electrical or mechanical scope before hiring.

Who licenses plumbers in St. Louis Missouri?

St. Louis City and many counties require locally licensed master plumbers or licensed plumbing contractors. Confirm with the building division where the property sits.

Where do I look up Missouri professional licenses online?

pr.mo.gov licensee search covers state-regulated occupations. Construction trades in major cities are often listed on city portals instead.

Can a homeowner pull a building permit in Missouri?

Many counties and cities allow owner-builder permits with affidavits. Licensed trades must still perform regulated work where local law requires licences.

Is there a deposit limit for contractors in Missouri?

There is no single statewide deposit cap. Avoid paying large upfront sums without written milestones tied to inspections.

What is Missouri home repair fraud?

Statutes penalize contractors who misrepresent licences, insurance, or scope, especially in schemes targeting seniors. Report patterns to the Attorney General.

How do mechanic's liens work in Missouri?

Chapter 429 sets filing deadlines and notice rules. Subcontractors who follow the statute can lien your property even if you believed you paid the general contractor in full.

Do HVAC contractors need a license in Missouri?

In Kansas City and many municipalities, yes — mechanical or HVAC contractor licences are required for permit pulling. Rural areas may rely on licensed subcontractors — ask the permit office.

Does a handyman need a contractor license in Missouri?

Handymen are not state-licensed as a class, but cities license trades and restrict permit pulling. Electrical, plumbing, and gas work requires licensed contractors in regulated cities.

What insurance should I request from a St. Louis contractor?

General liability and workers’ compensation certificates sent from the insurer. Cities may require minimum limits on file before permits issue.

How do I file a complaint against a contractor in Missouri?

Contact the Attorney General for fraud, the city licence office for municipal licensees, and the local building official for permit and code violations.

Sources

Content reviewed 2026-10-07. Statutes and board URLs were checked at publication; confirm current text on the official site before relying on it in a dispute.