Missouri contractor license renewal rules

The statewide license is optional. It only matters if the contractor wants one license recognized in all Missouri political subdivisions; a contractor holding the needed local license, or working where no license is required, does not need it (RSMo 324.920.4). It licenses a supervisory-level qualifier on behalf of the firm (one firm at a time). Permits and inspections remain local, and contractors working in cities such as Kansas City, St. Louis, Springfield and Columbia must still follow local rules. The triennial renewal fee is $100 on the Office fee page; an emergency amendment to 20 CSR 2117-1.070 published June 15, 2026 cut it from $200 to $100 for the 2026 renewals. The inactive triennial renewal fee is listed as $200 on the fee page but $100 in the rule text, so confirm with the Office.

Missouri has no statewide license for this trade. The Division of Professional Registration licenses electrical contractors only among the construction trades, and a 2026 bill for a statewide mechanical contractor license (SB 957) stayed in committee. Licensing is done by cities and counties, and each sets its own classes, fees, renewal periods and insurance rules; local licenses do not transfer between jurisdictions. There is no state general contractor license. Kansas City licenses residential building contractors (with a Residential Building Supervisor certificate) for one- and two-family homes and townhouses, requires $1,000,000 per occurrence liability insurance with the city named as additional insured where required, and requires the city business license to be renewed first. The City of St. Louis requires a contractor business license from the License Collector. Other cities and counties such as St. Louis County, St. Charles County, Springfield and Columbia set their own rules.

Missouri has no statewide license for this trade. The Division of Professional Registration licenses electrical contractors only among the construction trades, and a 2026 bill for a statewide mechanical contractor license (SB 957) stayed in committee. Licensing is done by cities and counties, and each sets its own classes, fees, renewal periods and insurance rules; local licenses do not transfer between jurisdictions. Examples: Kansas City requires a mechanical contractor license for the business plus a Mechanical Supervisor or Master Pipe Fitter certificate of qualification for the qualifier, applied for and renewed in CompassKC after the city business license is renewed (City Planning and Development, Permits Division, (816) 513-1500 ext. 1 option 2, [email protected]). The City of St. Louis issues mechanical permits only to mechanical contractors licensed by its Building Division (Mechanical Section, 314-622-3313). St. Louis County licenses mechanical contractors through its Department of Transportation and Public Works.

Missouri licenses structural pest control through the commercial applicator license under the Missouri Pesticide Use Act (Ch. 281 RSMo); there is no separate structural pest control board. The license fee is $65 per year. Renew online through MOPlants or by mailing the fee with the signed renewal card. Pesticide Technicians (general-use pesticides only, under supervision) are licensed separately.

Missouri has no statewide license for this trade. The Division of Professional Registration licenses electrical contractors only among the construction trades, and a 2026 bill for a statewide mechanical contractor license (SB 957) stayed in committee. Licensing is done by cities and counties, and each sets its own classes, fees, renewal periods and insurance rules; local licenses do not transfer between jurisdictions. Examples: Kansas City requires a plumbing contractor license for the business, supervised by a Master Plumber certificate holder, with Journeyman or Master Plumber certificates for workers on most non-residential work; the plumbing contractor must keep $1,000,000 per occurrence liability insurance on file (certificate filed annually) and a cash deposit of at least $500 with the city (Code Sec. 18-327). The City of St. Louis Plumbers and Drainlayers Board of Examiners and St. Louis County license plumbers in their areas.

Missouri has no statewide license for this trade. The Division of Professional Registration licenses electrical contractors only among the construction trades, and a 2026 bill for a statewide mechanical contractor license (SB 957) stayed in committee. Licensing is done by cities and counties, and each sets its own classes, fees, renewal periods and insurance rules; local licenses do not transfer between jurisdictions. There is no state roofing license. Some cities require a contractor license or registration for roofing work; in Kansas City, building work on one- and two-family homes and townhouses requires a residential building contractor license with $1,000,000 per occurrence liability insurance on file (Code Sec. 18-327). Check with the city or county where the job is located.