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Foundation Contractors Insurance Cost

Insurance costs for foundation contractors depend on your revenue, payroll, claims history, and the specific coverage lines you need. We break down the factors that drive your premiums and help you find the most competitive rates.

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+6%Avg Commercial P&C Premium Increase Q4 2024 (NAIC)
$26BUS Foundation Contractor Revenue (2024)
5-25%Typical Range of Quotes Across Carriers Same Risk
Class 6233NCCI WC Code for Pile Driving

How Much Does Insurance Cost for Foundation Contractors?

Foundation Contractors insurance pricing is driven by your industry’s specific risk data. What you pay is determined by your NCCI workers compensation class code, your ISO general liability classification, and your three-year claims history as measured by your experience modification rate.

Insurance costs for foundation contractors are driven by your classification codes, claims history, and the specific services you perform. Your workers compensation is rated under NCCI 6217 (Excavation — foundation work) and 5213 (Concrete construction — foundations) at base rates of $9.20–$16.80 per $100 of payroll, and your general liability under ISO GL class code 91581 (Foundation/excavation contractors). (Source: NCCI, ISO)

Foundation contractors face trench collapse and excavation hazards — OSHA reports an average of 40 trench-related fatalities annually, with improper shoring as the primary cause (Source: BLS CFOI, OSHA enforcement data) This risk profile directly determines your base rates and carrier availability.


How Much Does Insurance Cost for Foundation Contractors?

  • General Liability (ISO GL class code 91581 (Foundation/excavation contractors)): $2,500–$8,000 annually
  • Workers Compensation (NCCI 6217 (Excavation — foundation work) and 5213 (Concrete construction — foundations)): $4,000–$12,000 annually
  • Commercial Auto: $2,000–$6,000 annually
  • Umbrella/Excess: $1,200–$3,500 annually

Total program: Small foundation contractors operations: $10,000–$30,000. Larger operations: $50,000–$150,000+.

Key insight: We see 20–35% premium variation between carriers for identical foundation contractors coverage. Shopping across specialty carriers is the single most effective cost control strategy.


What Regulatory Standards Apply to Foundation Contractors?

OSHA 29 CFR 1926.650-652 (Excavation/Trenching — Subpart P), soil classification requirements (Appendix A), protective system requirements for trenches over 5 feet, and competent person inspection mandates

Non-compliance with these standards affects both your operating authority and your insurance program — carriers evaluate regulatory compliance during underwriting. Documented compliance programs access preferred pricing tiers, while OSHA citations can trigger premium surcharges or non-renewal.

Coverage Axis monitors regulatory changes affecting foundation contractors and proactively notifies clients when new requirements impact their insurance programs.


What Risk Data Drives Foundation Contractors Insurance Costs?

Foundation contractors face trench collapse and excavation hazards — OSHA reports an average of 40 trench-related fatalities annually, with improper shoring as the primary cause (Source: BLS CFOI, OSHA enforcement data)

Primary injury profile: Trench collapse and soil cave-in (the most fatal foundation hazard), struck-by from excavation equipment, concrete burns from wet concrete (pH 12-13), and musculoskeletal strain from form work. These injury patterns directly drive both workers compensation costs and general liability claim frequency for foundation contractors.

Average claim cost: Average foundation contractor WC lost-time claim: $44,800 — elevated by trench collapse severity. This severity benchmark is what carriers use when pricing foundation contractors accounts — and what you should use when setting coverage limits.

Classification: foundation contractors are classified under NCCI 6217 (Excavation — foundation work) and 5213 (Concrete construction — foundations) for WC and ISO GL class code 91581 (Foundation/excavation contractors) for GL. These codes determine your base rates before individual adjustments. (Source: NCCI Scopes Manual, ISO Commercial Lines Manual)


How Does EMR Affect Foundation Contractors Insurance Premiums?

Your experience modification rate (EMR) is the single most impactful controllable factor in your insurance costs. For foundation contractors classified under NCCI 6217 (Excavation — foundation work) and 5213 (Concrete construction — foundations) at base rates of $9.20–$16.80 per $100 of payroll, the EMR multiplies your WC premium directly.

An EMR of 0.85 saves you 15% on workers compensation. An EMR of 1.25 adds 25%. Every lost-time claim affects your EMR for three consecutive years — making prevention the highest-ROI cost control strategy for foundation contractors.

Return-to-work programs, documented safety training, and claims management keep your EMR favorable. Coverage Axis helps foundation contractors monitor and manage their EMR proactively.


Where Can Foundation Contractors Find More Insurance Resources?


Get Your Foundation Contractors Insurance Cost Comparison

Coverage Axis compares quotes from 50+ carriers for foundation contractors — finding the best combination of coverage quality and premium price. Our advisors understand NCCI 6217 (Excavation — foundation work) and 5213 (Concrete construction — foundations) classification and know which carriers offer the most competitive rates for your operations. Free comparison, no obligation.

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COST FACTORS

What Affects Your Premium

Annual Payroll Volume

Workers compensation is rated on payroll — every dollar of payroll generates premium. Accurate payroll projections prevent costly audit surprises at year-end.

NCCI Trade Classification Code

Your specific trade determines your base workers compensation rate per $100 of payroll. Roofing (5551) rates can be 10x higher than electrical (5190) rates in the same state.

Experience Modification Rate

Your EMR adjusts base premium up or down based on your claims history vs industry peers. An EMR of 0.80 saves 20%; an EMR of 1.30 adds 30% to your WC premium.

Subcontractor Usage and Insurance Verification

Uninsured subcontractor payments are added to your payroll at audit. Proper certificate tracking prevents unexpected audit bills that can reach tens of thousands.

Project Types and Contract Values

Commercial and government projects require higher limits and additional endorsements that increase premium. Residential-only contractors typically pay less than those handling commercial work.

TYPICAL COSTS

Average Premium Ranges

General Liability
$1,200 $8,500 / year
Workers Compensation
$3,500 $45,000 / year
Commercial Auto
$1,800 $9,000 / year
Inland Marine / Tools
$500 $4,500 / year
Umbrella Liability
$800 $5,000 / year

COVERAGE COSTS

What does each coverage cost for Foundation Contractors?

Dollar ranges for every coverage type, with the underwriting drivers that move premium up or down.

Cost Guide Builders Risk Cost Cost Guide Business Interruption Cost Cost Guide Business Owners Policy (BOP) Cost Cost Guide Commercial Auto Cost Cost Guide Commercial Crime Cost Cost Guide Commercial Property Cost Cost Guide Contractors Tools & Equipment Cost Cost Guide Cyber Liability Cost Cost Guide Directors & Officers (D&O) Cost Cost Guide Employment Practices Liability Cost Cost Guide Equipment Breakdown Cost Cost Guide Excess Workers Compensation Cost Cost Guide General Liability Cost Cost Guide Group Dental Cost Cost Guide Group Health Cost Cost Guide Hired & Non-Owned Auto Cost Cost Guide Inland Marine Cost Cost Guide Installation Floater Cost Cost Guide Pollution Liability Cost Cost Guide Product Liability Cost Cost Guide Professional Liability (E&O) Cost Cost Guide Umbrella / Excess Liability Cost Cost Guide Workers Compensation Cost

WHY COVERAGE AXIS

Why Coverage Axis

50+

Insurance Carriers

Access to a broad network of A-rated carriers competing for your business — your advisor handles the rest.

24hr

COI Turnaround

Certificates and additional insured endorsements delivered the same day you need them.

15+

Years of Experience

Our advisors specialize in commercial insurance — we understand your industry inside and out.

$0

Cost to You

Getting a quote is always free. No hidden fees, no obligation — just straightforward coverage advice.

Chris DeCarolis, Senior Commercial Insurance Advisor at Coverage Axis

YOUR ADVISOR

Chris DeCarolis

Senior Commercial Insurance Advisor

Chris DeCarolis is a Senior Commercial Insurance Advisor at Coverage Axis. His experience in commercial risk placement started in 2007. He has helped contractors, trades, and specialty businesses build coverage programs that fit their operations — specializing in general liability, workers comp, commercial auto, and umbrella programs for high-risk industries. Chris holds a Florida 220 General Lines license (G038859) and is a graduate of Brown University.

FL 220 License (G038859) 18+ Years Experience Brown University

COMMON QUESTIONS

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