Summary
Operating as a general contractor in St. Louis requires both state and local compliance. You'll need a Missouri contractor license for projects over $5,000, which involves passing state exams and maintaining biennial renewals. Additionally, you must register with St. Louis City for local business licensing and building permits through the Building Division. Insurance requirements include general liability and workers' compensation coverage, with higher limits often required for city projects. The permitting process is straightforward but requires advance planning, with typical review times of 10-30 days depending on project complexity. St. Louis offers a competitive market with construction costs generally below national averages, making it an attractive location for contractors who maintain proper compliance with both state and local regulations.
License Requirements
General contractors in Missouri must obtain a state license through the Missouri Division of Professional Registration for projects over $5,000. The state requires passing a business and law exam and a trade-specific exam. No experience requirement exists, but contractors must provide financial statements. License renewal occurs biennially with continuing education requirements. St. Louis City requires a separate business license through the License Collector's Office and contractors must register with the city for work permits. Out-of-state contractors must obtain a Missouri license or register as a foreign corporation.
Permit Requirements
Building permits are required through the St. Louis City Building Division for most construction work including new construction, additions, major renovations, and structural changes. Permit applications require detailed plans, contractor information, and proof of insurance. Plan review typically takes 10-15 business days for residential projects and 20-30 days for commercial projects. Permit fees range from $50-200 for minor work to several thousand dollars for major projects based on construction value. Electrical, plumbing, and mechanical permits may be required separately. Final inspections must be completed before occupancy.
Insurance Requirements
Missouri requires general liability insurance of at least $50,000 per occurrence and $100,000 aggregate for licensed contractors. Workers' compensation insurance is mandatory for contractors with employees, with rates varying by classification. St. Louis City may require additional liability coverage of $300,000-500,000 for larger projects. Contractors should carry completed operations coverage and vehicle insurance. Some projects require performance bonds, typically 10-15% of contract value. Proof of insurance must be provided with permit applications and maintained throughout the license period.
Typical Cost Ranges
Residential remodeling projects in St. Louis typically range from $15,000-50,000 for kitchen renovations, $20,000-40,000 for bathroom remodels, and $25,000-75,000 for basement finishing. Home additions cost $100-200 per square foot. New home construction ranges from $120-180 per square foot for custom homes. Commercial tenant improvements average $25-60 per square foot. Small commercial projects range from $50,000-250,000, while larger commercial work can exceed $1 million. Labor costs are generally 10-15% below national averages, with materials at regional pricing.
Compliance Checklist
- ✓Obtain Missouri contractor license through Division of Professional Registration
- ✓Register for St. Louis City business license with License Collector's Office
- ✓Secure general liability insurance meeting state and local requirements
- ✓Obtain workers' compensation insurance if employing workers
- ✓Apply for building permits through St. Louis Building Division before starting work
- ✓Ensure all subcontractors are properly licensed and insured
- ✓Schedule required inspections during construction phases
- ✓Maintain current insurance certificates and license documentation on job sites
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