How to check a contractor's license in Missouri.

Missouri does not require a state-level general contractor license. However, this doesn't mean contractors can operate without any oversight. Many cities and counties in Missouri have their own licensing requirements, and specialty trades (plumbing, electrical, HVAC) typically require state licensing even when general contracting doesn't.

No statewide general contractor, plumbing, or HVAC license — GC, home improvement, plumbing, and HVAC are licensed by city or county. Missouri does offer an optional statewide electrical contractor license (RSMo §§ 324.900-324.945) through the Office of Statewide Electrical Contractors, which lets electrical contractors work across Missouri without obtaining a separate license in each locality. Local permits and inspections still apply. Consumer protection is primarily enforced by the Missouri Attorney General under the Missouri Merchandising Practices Act (RSMo Ch. 407).

How to Verify a Contractor in Missouri

Since Missouri doesn't have statewide licensing, you'll need to:

1. Check local requirements. Contact your city or county building department to find out if contractors need a local license, permit, or registration to work in your area.
2. Verify specialty licenses. If your project involves plumbing, electrical, HVAC, or other specialty trades, those contractors should hold state-issued specialty licenses. Check the Missouri Division of Professional Registration — Office of Statewide Electrical Contractors (electrical only; no state GC board) for specialty license verification.
3. Ask for proof of insurance. Even without a licensing requirement, any reputable contractor should carry general liability insurance and workers' compensation insurance. Ask for certificates before signing a contract.
4. Check the Better Business Bureau. In states without licensing boards, the BBB and online reviews are your primary tools for vetting contractors.
5. Verify business registration. Check that the contractor is registered as a business with the Missouri Secretary of State.

Protecting Yourself Without State Licensing

In states like Missouri where there's no state licensing board to file complaints with, it's especially important to:

• Get a detailed written contract before any work begins
• Never pay more than 10-30% upfront
• Verify the contractor pulls all required building permits
• Get multiple bids and check references
• Use a credit card for payments when possible (chargeback protection)

Should Missouri Require Contractor Licensing?

States without contractor licensing consistently have higher rates of consumer complaints about home improvement fraud. Licensed states provide consumers with surety bond protection, complaint investigation, and disciplinary enforcement that unlicensed states lack. If you're in Missouri, consider advocating for statewide contractor licensing through your state legislature.

Sources

Facts on this page were verified against the following primary sources on April 20, 2026. Licensing laws, fees, and bond amounts change — always confirm with the official board before acting.

• Missouri Office of Statewide Electrical Contractors — Contractors FAQ — Official FAQ explaining the statewide electrical contractor license, experience paths, insurance, and grandfather clause. (retrieved 2026-04-20)
• RSMo § 324.900 — Definitions (Statewide Electrical Contractors) — Statutory definition of electrical contractor under Missouri's statewide electrical licensing program. (retrieved 2026-04-20)
• RSMo § 324.920 — Application, qualifications, and insurance — Sets the $500,000 liability insurance requirement, exam, and experience paths for statewide electrical contractors. (retrieved 2026-04-20)
• RSMo § 324.935 — Renewal of statewide electrical contractor license — Three-year renewal cycle for statewide electrical contractor licenses. (retrieved 2026-04-20)
• RSMo § 407.020 — Unlawful practices (Missouri Merchandising Practices Act) — Core MMPA provision prohibiting deception, fraud, and unfair practices in the sale of goods and services. (retrieved 2026-04-20)
• City of Columbia — Board of Plumbing Examiners — Columbia's Board of Plumbing Examiners documents licensing requirements for plumbing contractors, including the $10,000 surety bond. (retrieved 2026-04-20)
• RSMo § 429.012 — Notice to owner on owner-occupied residential property (≤4 units) — Requires original contractors to provide a statutory Notice to Owner on owner-occupied residential property of four units or fewer, with an exception for new residences covered by title insurance. (retrieved 2026-04-20)
• RSMo § 429.016 — Notice of Rights requirement for non-§ 429.012 projects — Requires contractors to serve a Notice of Rights before filing mechanics liens on projects outside § 429.012's scope (commercial and non-owner-occupied residential work). (retrieved 2026-04-20)
• Missouri Attorney General — Consumer Protection Division — Primary state-level consumer complaint pathway for home improvement and contractor disputes. (retrieved 2026-04-20)
• City of St. Louis — Construction Contracting Business License — St. Louis Graduated Business License (GBL) requirements for contractors and subcontractors. (retrieved 2026-04-20)
• Kansas City — Business Registration Guide — Kansas City business license and contractor registration requirements (Permits Division, 816-513-1500). (retrieved 2026-04-20)
• City of Springfield — Confirm Your Contractor's License — Springfield's online contractor license lookup. (retrieved 2026-04-20)
• City of Columbia — Business Licenses — Columbia business-license requirements, including trade-specific bonds and insurance. (retrieved 2026-04-20)
• City of Independence — Building Inspections Division — Independence contractor licensing (Class A, B, and C) through Community Development / Building Inspections. (retrieved 2026-04-20)

Other States

Looking up a contractor in a different state? Visit our state-by-state contractor license lookup page to find the right verification tool for your state.