Missouri: no state license covers chimney work. Here's what that means.

Missouri is a near-total regulatory vacuum on both axes, and that is what makes it unusual. It has no state chimney license, no statewide building code, no statewide CO statute, and no statute requiring a seller-disclosure form. Even its door-to-door cancellation law covers only credit sales, so a cash door-knock scare sale leans on the federal FTC rule instead.

So Missouri BREAKS the master finding's clean inverse. The correlation predicts that no-license states deliver real mandatory disclosure to compensate, but Missouri gives neither. It is a rare double-weak state where the leverage lives almost entirely in the MMPA (§§ 407.020, 407.025, with punitive damages and fees available). The messages are blunt: there is nothing to "look up" statewide, and no statute makes the seller hand you a disclosure form. Get your own inspection, and lean on the MMPA if you're defrauded. That double vacuum is exactly the gap this site exists to fill.

No statewide license or registration covers chimney work in Missouri. Missouri has no state general-contractor, residential-builder, or home-improvement license. Chimney masonry, relining, and sweeping fall outside any state credential. Licensing is LOCAL, city by city:

• Kansas City (KCMO) issues contractor licenses through City Planning & Development. The categories include a Residential Building Contractor license, which "may construct, structurally alter, or enlarge any one or two family detached dwelling or townhouse," and a Gas-Fired Appliance Contractor license, which may "install, erect, alter, repair, service, and reset gas-fired appliances." Applicants obtain a Certificate of Qualification. They must be at least 21, hold a HS diploma or GED, and submit examination results from a recognized agency (e.g., ICC or Prometric). KCMO has no masonry, fireplace, or chimney license category (KCMO contractor licensing page; bulletin "Contractor Licensing & Certification Requirements"). Lookup: city.kcmo.org/kc/Codes/LicensedContractors.
• City of St. Louis: the License Collector issues a Construction – Contracting Business License, which is separate from its general Graduated Business License. It is a business license, not a competency exam. NOT YET CONFIRMED Specific requirements not confirmed.
• Other cities (e.g., Springfield, Columbia) may run their own regimes. NOT YET CONFIRMED Not verified in this pass.

"Licensed and bonded" in Missouri almost always means a city credential, valid only inside that jurisdiction.

Statewide, there is nothing to verify for chimney work: no exam, no registry, no bond requirement. Even where a city license exists, KC's is exam-based but tests general building knowledge through ICC/Prometric-type exams and has no chimney or masonry class. Individual certs (NCSG CCP/CCR; CSIA CCS, C-DET) and an independent audit fill a total vacuum here.

Missouri has NO statute requiring a seller-disclosure statement, and no chimney-specific disclosure statute. The disclosure duties Missouri does have point elsewhere:

• Common law: sellers must not conceal or misrepresent known material defects.
• Real-estate licensees, not sellers: a licensee acting as the seller's agent "shall disclose to any customer all adverse material facts actually known or that should have been known by the licensee" (RSMo § 339.730). That duty contains no form requirement.
• Stigma, not condition: RSMo § 442.600 says psychological stigma (homicide, suicide, etc.) is not a material fact that must be disclosed. It says nothing about chimneys.

In practice many sales use a voluntary Missouri REALTORS® seller's disclosure form. Using it is contractual, not statutory, and a seller can decline it or sell "as is." NOT YET CONFIRMED The form's current number and chimney/fireplace wording were not verified in this pass; don't quote them. No inspection is mandated at transfer; NFPA 211 Level 2 stays a NATIONAL STANDARD. This is a disclosure void, not a mandate.

• Missouri Merchandising Practices Act (MMPA). RSMo § 407.020 declares unlawful "any deception, fraud, false pretense, false promise, misrepresentation, unfair practice or the concealment, suppression, or omission of any material fact" in connection with a sale. The AG's Consumer Protection Division enforces it. RSMo § 407.025 also gives consumers a private right of action for actual damages, with discretionary punitive damages and attorney's fees, and class actions are allowed. There is no automatic trebling. Since 2020 (SB 591), a plaintiff must show the conduct would mislead a "reasonable consumer" and prove damages "with a reasonable degree of certainty."
• Home-solicitation cancellation — narrower than it looks. RSMo §§ 407.700–407.720 give a right to cancel "until midnight of the third business day after the day on which the buyer signs" (§ 407.705). But § 407.700 defines a home solicitation sale as a "consumer credit sale" solicited at the buyer's residence. A cash or card door-knock chimney sale on the spot may not be covered by the Missouri statute. For those sales, the federal FTC Cooling-Off Rule (16 CFR Part 429, NATIONAL) gives a 3-business-day cancellation right on door-to-door sales of $25 or more made at the buyer's home. That rule excludes repair or maintenance visits the buyer initiated, except for extra goods or services sold during the visit.

Complaints: ago.mo.gov consumer complaint portal.

The Missouri AG's Consumer Protection Division pursues home-repair contractors under the MMPA. The AG's press-release index (ago.mo.gov/press-releases, read Sep 25, 2026) shows repeated 2025–26 contractor-fraud actions — restitution judgments and felony charges against home-remodeling, roofing, and construction contractors, including one targeting tornado victims (May 2026). Only the titles were read, so do not name defendants or quote them. None is chimney-specific. The door-knock "we noticed your chimney" pitch is an MMPA misrepresentation scenario. Cancellation runs through § 407.705 if the sale is on credit, or through the FTC Cooling-Off Rule otherwise. No MO chimney-sweep-specific enforcement action has been confirmed. Use patterns, not names.

Missouri has no statewide residential building code. Code adoption is local:

• Cities adopt codes under municipal and home-rule authority.
• First- and second-classification counties may adopt building regulations by order or ordinance (RSMo § 64.170). A county that had no code before Aug 28, 2001 needs voter approval to adopt one.
• Unincorporated rural areas may have no code and no permit process at all.

Kansas City and St. Louis each maintain their own IRC/IBC adoptions NOT YET CONFIRMED current editions not confirmed in this pass. Where a building department exists, chimney relines, rebuilds, crowns, and solid-fuel appliance installs are generally permit work; routine sweeps and like-for-like caps generally are not. This state needs the local-variance disclaimer heavily.

No statewide burn-ban or stove-emission regime. Not a material content section for MO.

Missouri has NO statewide residential carbon-monoxide-alarm statute found as of Sep 2026. The Missouri Division of Fire Safety's own smoke/CO page presents CO alarms only as an NFPA recommendation, not a state mandate. The CO bill cited earlier, HB 2429, was introduced in the 101st General Assembly (2022) and not enacted. CO requirements are LOCAL only, through adopted building and fire codes. There is no pre-sale CO certificate. A permitted chimney or solid-fuel job is still the natural moment to add alarms.