General Contracting contractors in
St Louis, Missouri.
A public directory of general contracting contractor businesses serving greater St Louis. Market data, licensing requirements, and cost benchmarks — updated continuously from public sources.
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Common Job Costs
Licensing Requirements
Licensing Requirements
Missouri requires a Construction Supervisor License (CSL) for residential general contractors managing projects over $500. Applicants need 4 years documented experience in construction supervision or management, pass the Missouri Construction Supervisor Exam (administered by PSI), and maintain liability insurance. License renewal every 3 years with continuing education (12 hours). No state general contractor license exists; licensing is regulated at city/county level. St. Louis requires general contractor permits and registration with the Building Division. Check local requirements for specific endorsements.
Permit Requirements
St. Louis Building Division requires permits for all projects exceeding $500 or involving structural changes. Separate permits needed for electrical, plumbing, HVAC, and mechanical work. Plan review typically takes 5-10 business days. Demolition permits required before removal work. Right-of-way permits needed if work affects public property. Environmental review required for certain sites. All permits must be posted on job site during work.
Inspection Schedule
Initial inspection before work begins; framing inspection at rough-in stage; mechanical/electrical/plumbing inspection before wall closure; final inspection upon project completion. Projects over $25,000 may require mid-project review. All inspections scheduled through St. Louis Building Division; typical turnaround 3-5 business days.
Insurance Minimums
Missouri requires minimum $300,000 general liability insurance per occurrence. Workers' compensation mandatory if employing 1+ employee (Missouri Department of Labor Regulation 8.50). Property damage coverage minimum $100,000. Bonding requirements vary by project size and local ordinance; projects over $25,000 may require performance bond (5-10% of contract value) and payment bond.
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Local market snapshot
Source: DoorBase, aggregated public ZIP-level data. Updated 8/17/2026.
How to Get Licensed
Document 4 Years Experience
Gather documented proof of 4 years working in construction supervision or general contracting management. This includes job logs, payroll records, project photos, references from past employers, and written descriptions of projects managed. Each year must show continuous, full-time work (minimum 2,000 hours annually). The Missouri Department of Labor and Industrial Relations will verify this during application review. Keep detailed records: dates, project scope, crew size, dollar amounts. Weak documentation delays approval 30-60 days. File this documentation with your application.
Register with Missouri Department of Labor
Submit application to the Missouri Department of Labor and Industrial Relations, Construction Supervisor License division. Provide proof of experience, liability insurance certificate (minimum $300,000), background check authorization, and application fee ($150-$250, varies by year). Processing takes 15-30 business days. You'll receive notice of exam eligibility once your experience is verified. Keep a copy of your application receipt; you'll need it to schedule the exam.
Pass the Missouri Construction Supervisor Exam
Schedule the exam through PSI (Professional Testing Services). The exam covers Missouri building code, project management, safety regulations, contract law, and general contractor ethics. Study materials are available through the Missouri Department of Labor. Exam cost is $200-$300. You have 120 minutes to complete approximately 100 multiple-choice questions; 70% pass score required. Schedule your exam at least 2 weeks in advance. Testing centers are available in St. Louis and across Missouri. Failed exams can be retaken after 30 days; budget study time seriously.
Obtain General Liability Insurance
Secure a $300,000 minimum general liability insurance policy from a Missouri-licensed insurance carrier. Also obtain workers' compensation insurance if you have employees. Obtain a Certificate of Insurance (COI) from your agent showing your coverage limits and policy period. Many carriers require proof of licensing before quoting. Insurance costs typically range $1,200-$2,500 annually depending on payroll and claims history. Maintain continuous coverage throughout your career; lapses void your license.
Receive Construction Supervisor License
Once you pass the exam and insurance is verified, the Missouri Department of Labor issues your Construction Supervisor License (CSL). License is valid for 3 years. You'll receive a certificate and license number for your records. Register locally with the St. Louis Building Division and pay local registration fees ($200-$400 annually). Your license number must appear on all permits and contracts. Keep your license visible at job sites when required by local ordinance.
Complete Continuing Education and Renew
Before expiration (every 3 years), complete 12 hours of approved continuing education through Missouri Department of Labor-approved providers. Courses cover building code updates, safety, business practices, and legal compliance. Submit proof of completion with your renewal application 60 days before expiration. Renewal fee is $150-$200. Failure to renew on time requires re-examination. Keep all CE certificates on file for audit purposes. Plan renewal 90 days ahead to avoid work interruption.
About This Market
St. Louis general contracting is steady work with solid demand. You've got residential remodeling driving consistent volume—kitchens, bathrooms, additions—plus ongoing commercial build-outs downtown and in the Clayton corridor. Competition is moderate to heavy; roughly 827 licensed operations statewide means you're competing but not drowning. Costs run regional: labor runs $57.98/hour median (that's BLS data), materials track national trends, and project pricing reflects both rehab demand in older neighborhoods and new construction in suburban expansion zones. Spring through fall is when money moves; winter slows to maintenance and planning work. What separates contractors here is reputation and turnaround time—St. Louis clients expect quality finishes and respect timelines. Older housing stock means surprises: hidden structural issues, asbestos, lead paint—budget accordingly and price contingency into estimates.
- Median hourly wageU.S. Bureau of Labor Statistics (BLS) Occupational Employment and Wages, May 2023
- Number of licensed establishments in MissouriU.S. Census Bureau County Business Patterns (CBP), General Contracting Category
- Construction Supervisor License requirementsMissouri Department of Labor and Industrial Relations, Construction Supervisor License regulations
- Permit and inspection proceduresSt. Louis Building Division, City of St. Louis Municipal Code Section 401-410
- Insurance and bonding minimumsMissouri Building Code, Missouri Department of Labor, local contractor regulations
- Peak season timingConstruction industry labor trends and St. Louis Building Division permit data patterns
- Typical project costsSt. Louis-area contractor pricing surveys, RSMeans cost data, BLS wage data
Frequently Asked Questions
Do I need a state license to operate as a general contractor in Missouri?
Missouri doesn't issue a state general contractor license. However, you must obtain a Construction Supervisor License (CSL) if you manage residential projects exceeding $500. Requirements: 4 years documented construction supervision experience, passing the Missouri Construction Supervisor Exam administered by PSI, and maintaining $300,000 minimum liability insurance. Renewal is required every 3 years with 12 hours continuing education. St. Louis also requires local registration with the Building Division. Check your specific city/county for additional endorsements or restrictions. Source: Missouri Department of Labor and Industrial Relations, St. Louis Building Division.
What permits do I need in St. Louis before starting a general contracting project?
All projects exceeding $500 or involving structural changes require a General Contractor Permit from the St. Louis Building Division. You'll also need separate permits for electrical, plumbing, HVAC, and mechanical work if those systems are being modified. Demolition permits are required before any removal work. Environmental review may be necessary depending on site history. Plan review takes 5-10 business days. Permits must be posted on-site during all active work. Failure to obtain permits results in fines ($250-$1,000+) and potential work stoppage. Source: St. Louis Building Division, City of St. Louis Municipal Code Section 401-410.
What's the typical project cost in St. Louis for a kitchen remodel?
Mid-range kitchen remodels (200 sq ft) typically run $35,000 to $65,000 in the St. Louis metro area. Costs depend on materials selected, existing condition, structural changes, and whether mechanical systems (plumbing, electrical, HVAC) need upgrading. Higher-end finishes in Wash U or Clayton neighborhoods push toward $75,000+. Budget labor at $57.98/hour median wage per BLS data. Material costs track national averages. Contingency of 10-15% is standard given older housing stock and potential hidden damage. Permits add $1,500-$3,000. Source: U.S. Bureau of Labor Statistics Occupational Wages for Missouri, St. Louis contractor surveys.
What insurance is required for general contractors in Missouri?
Minimum $300,000 general liability insurance per occurrence is required. Workers' compensation insurance is mandatory if you employ even one employee—Missouri Department of Labor Regulation 8.50 enforces this. Property damage coverage minimum $100,000 is standard. Projects over $25,000 may require performance bonds (5-10% of contract value) and payment bonds to protect clients. Bonding requirements vary by project scope and local ordinance. Verify coverage limits with your insurance agent annually. Source: Missouri Department of Labor, Missouri Building Code, contractor licensing standards.
When is peak season for general contracting work in St. Louis?
Peak season runs April through October, with June through August generating 60% of annual revenue. Spring renovations and summer remodels dominate. Fall sees secondary demand for weatherproofing and holiday season projects. Winter (November-March) slows significantly but provides planning, permitting, and maintenance work. Schedule crew hiring and material orders by February-March to capitalize on spring surge. Sub availability tightens May-August, so confirm electricians and plumbers 4-6 weeks ahead. This seasonality affects cash flow and staffing decisions. Source: Construction industry labor trends, St. Louis Building Division permit data.
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