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How to check if a contractor is licensed in Missouri

Edited by John Voll. Last verified .

In Missouri, the state keeps license or registration records for electrical contractors, and each has an official lookup or board listed below. For general contractors, plumbing contractors, HVAC contractors and roofing contractors, our survey found no state-level license, so check with the city or county where the work is done. Check the record before you sign a contract or pay a deposit, and treat the board's own record as final.

Which board covers which trade

TradeWho keeps the recordOfficial lookup
General contractorCity or countyOur survey of official Missouri sources found no state-level general contractor license. Check with the city or county where the work is done.
ElectricalMissouri Division of Professional Registration, Office of Statewide Electrical ContractorsSearch electrical licenses
PlumbingCity or countyOur survey of official Missouri sources found no state-level plumbing contractor license. Check with the city or county where the work is done.
HVACCity or countyOur survey of official Missouri sources found no state-level HVAC contractor license. Check with the city or county where the work is done.
RoofingCity or countyOur survey of official Missouri sources found no state-level roofing contractor license. Check with the city or county where the work is done.

Local licensing offices

JurisdictionAgencyCredentialsLookup
Kansas CityCity Planning and Development Department, Permits Division sourceContractor License, Certificate of Qualification, Master Electrician, Electrical Supervisor, Master Plumber, Journeyman Plumber, Mechanical Supervisor, Master Pipe FitterNo online lookup found
St. Louis CityCity of St. Louis License Collector sourceConstruction Industry Contractor Graduated Business LicenseNo online lookup found
St. Louis CountySt. Louis County Department of Transportation and Public Works sourceNo online lookup found
SpringfieldCity of Springfield Building Development Services sourceCity contractor license, Master Electrician, Master Mechanic, Master PlumberSearch Springfield licenses

Step by step

  1. Ask the city or county building department where the work is done how they license general contractors.
  2. For electrical work, also check the electrical contractor lookup from Missouri Division of Professional Registration.
  3. The Office of Statewide Electrical Contractors links an active licensee search on the MOPRO portal for the optional statewide electrical license; most Missouri contractors hold only city or county licenses, so check the local licensing office too. source Springfield asks homeowners to hire contractors holding the required city license, insurance, and bonding, and to confirm them through the city business license search. source The MO PRO licensee search covers Electrical Contractor licenses, searchable by profession, county, name or license number, and is updated nightly. source

If the contractor is not licensed, or you have a complaint

  • Complaints about a statewide licensed electrical contractor go to the Office of Statewide Electrical Contractors on its complaint form, by mail, email, fax or in person. source
  • Report a contractor scam to the Missouri Attorney General Consumer Protection Hotline or online at ago.mo.gov. source

Questions

How do I check if a contractor is licensed in Missouri?
Our survey of official Missouri sources found no state-level general contractor license. Check with the city or county where the work is done. For electrical, plumbing, HVAC or roofing work, use that trade's official lookup in the table on this page where the state keeps one.
What can I do if a contractor in Missouri is not licensed?
Complaints about a statewide licensed electrical contractor go to the Office of Statewide Electrical Contractors on its complaint form, by mail, email, fax or in person. Report a contractor scam to the Missouri Attorney General Consumer Protection Hotline or online at ago.mo.gov.

All Missouri licensing rules by trade

Sources

This is not a government site. The licensing board's own record governs; always confirm on the official lookup. Information as of October 6, 2026.