Contractor Insurance Requirements in Missouri

Missouri does not license general contractors statewide and does not set one statewide residential GL minimum. Cities and counties control most GC, electrical, plumbing and mechanical registrations, and their COI requirements commonly range from $300,000 combined single limit to $1,000,000 per occurrence. The citation trail is Mo. Const. art. VI; RSMo Chapter 287. Treat the quoted number, when one exists, as a licensing floor rather than a safe project limit. A homeowner should request a current Certificate of Insurance showing the exact legal name, policy number, effective dates, occurrence and aggregate limits, products/completed operations, and any additional-insured wording required by the contract or permit office. Where Missouri does not publish a statewide GL minimum, ProFix describes market ranges only as verification guidance, not as law. Roof, structural, excavation, mold, fire, solar and multi-trade projects should usually be reviewed for umbrella or excess liability because standard GL can contain residential, roofing, pollution, subsidence or subcontractor exclusions.

Workers' compensation is generally required for Missouri employers with five or more employees, but construction-industry employers with one or more employees must carry coverage. Sole proprietors and partners can elect coverage, and general contractors should verify subcontractor coverage carefully. Cite RSMo §§ 287.030, 287.061. Coverage is written through private carriers, assigned risk or self-insurance approved by the state. The certificate should state Missouri coverage and should not be replaced by a health insurance card or occupational accident policy. For residential hiring, the key question is not only whether the contractor has a policy, but whether the people entering the home are covered by that policy. Ask whether subcontractors are employees, independent businesses with their own WC, or excluded owners. If the contractor says it is exempt, request the state exemption form or written statutory basis and keep it with the contract file. A GL policy does not pay statutory wage-loss and medical benefits for an injured worker, and an occupational accident policy is not always a substitute for workers' compensation.

Bonding is local or project-specific. St. Louis, Kansas City, Springfield, Columbia and county permit offices may require contractor license bonds, excavation bonds or right-of-way bonds; state public work follows public-bond rules. The legal anchor is RSMo §§ 107.170, 292.675. A license bond is not the same thing as liability insurance: it is a surety promise that may reimburse a claimant only after a covered violation, and the surety normally seeks reimbursement from the contractor. It also is not always a performance bond guaranteeing completion of one homeowner's project. For residential work, ask who the obligee is, the bond amount, the effective dates, cancellation notice, and whether the bond is tied to the state license, a city registration, a right-of-way permit or a specific contract. For public or large commercial work, separate bid, performance and payment bonds can be required even when no residential license bond exists.

Residential work is mostly local: the permit city decides whether a GC, electrical, plumbing or mechanical registration is needed. Commercial work adds plan review, fire code approvals, prevailing-wage issues on public jobs and higher owner insurance limits. For insurance review, residential work should be tested against the homeowner contract, permit office, lender, HOA or condo requirements, and the license classification. Commercial work usually scales faster because leases, architects, public owners and general contractors often require additional insured status, waiver of subrogation, primary-and-noncontributory wording, higher auto limits and umbrella coverage. A contractor who is legal for a small repair may still be underinsured for a structural addition, roof replacement, fire restoration or job involving subcontractors.

Missouri has statewide professional boards for some occupations, but contractor trades are often city-controlled. HVAC, plumbing, electrical, sewer, elevator, asbestos and lead-safe renovation should be verified in the exact jurisdiction where the permit will be pulled. Federal overlays still matter in every state: renovation of pre-1978 painted surfaces can require EPA Renovation, Repair and Painting compliance under 40 C.F.R. Part 745, and asbestos disturbance can trigger OSHA construction asbestos rules at 29 C.F.R. § 1926.1101 plus state notification or licensing. Specialty insurance should match the hazard. Ask about professional liability for design-build advice, pollution or microbial coverage for mold and sewage, rigging/crane coverage for HVAC rooftop units, and hot-work controls for welding or torch-down roofing. A general liability COI with a low premium can be misleading if the trade that caused the loss is excluded.

Start with the city or county license desk, then check any Missouri professional license if the trade has one. Ask for GL and construction WC certificates before mobilization. The Missouri Department of Commerce and Insurance can confirm insurer and producer authority. Use three documents together: the state or local license record, the COI, and the bond or workers' compensation proof. The license board URL for Missouri is https://pr.mo.gov/, and the insurance regulator URL is https://insurance.mo.gov/. Match the business name, DBA, address and license number across all documents; mismatches are the fastest way to spot borrowed insurance or an unlicensed subcontractor. Call the producer listed on the COI, not a phone number supplied only in a text message. For larger residential jobs, require updated certificates before each draw and before final payment. This is an insurance-compliance checklist, not legal advice, and the local permit office can impose stricter conditions than the statewide baseline.