Missouri does not require a statewide plumber license — verification leans on entity registration, court records, OSHA citation history, and BBB complaints. Plus any local municipal licensing in your city. Groundcheck cross-checks all of these.
Missouri does not license plumbers at the state level. Kansas City, St. Louis, and Springfield issue municipal plumbing licenses — check the local jurisdiction.
What we check
What we check for Missouri plumbers.
Local license standing
Where local licensing exists, status from the city or county building department.
Entity registration
Secretary of State filing status: active, dissolved, or administratively revoked.
Records we hold for Missouri
Held and checked: Building permits. Looked up live at the source: Court filings & judgments, Entity standing (SOS). Anything else is reported as not searched, never as clear.
OSHA safety record
Federal OSHA inspection history, citations, and penalty amounts. Installs, repairs, and maintains water supply, drainage, gas, and sewer systems in residential and commercial buildings-specific.
BBB complaints
Better Business Bureau complaint history and accreditation status.
Phoenix detection
Dissolved entities reopening under a new name at the same address.
Coverage
Verify plumbers in any Missouri city.
Search a plumber or contractor entity anywhere in Missouri; each report names the records it searched there and through what date, including in: