Insurance for Contractors: The Complete Guide

Construction is one of the highest-risk industries in the United States. The Bureau of Labor Statistics consistently ranks it among the top sectors for workplace injuries and fatalities. That risk profile translates directly into insurance requirements that are more extensive — and more expensive — than most other small businesses face.

Beyond the physical risks, contractors face a web of contractual and regulatory insurance requirements. General contractors require proof of insurance from every subcontractor before allowing them on a job site. State licensing boards require bonds and sometimes GL coverage to issue or renew contractor licenses. Government contracts mandate specific coverage types and limits. Operating without proper insurance does not just create financial risk — it locks you out of the work.

The good news: once you understand which policies you need and how they work together, building your insurance program is straightforward. Here is every coverage type a contractor should consider, when each one is required, and what it costs.

Workers' compensation insurance is legally required in nearly every state for construction businesses. The construction industry often has lower thresholdsthan other industries — many states that exempt businesses with fewer than 3 or 5 employees in other industries require workers' comp for construction with just 1 employee.

Workers' comp for construction is significantly more expensive than other industries because of the high injury rate. Rates are based on NCCI class codes that correspond to specific trades. Roofers (class code 5551) pay the highest rates, often $10-$30+ per $100 of payroll. Office-based workers at a construction company (class code 8810) pay around $0.20-$0.50 per $100 of payroll.

Key points for contractors

• •Sole proprietors and partnerscan usually exempt themselves, but GCs will often require you to carry coverage anyway. If you do not, the GC's insurer will charge them for your coverage.
• •Subcontractorsare often treated as your employees for workers' comp purposes if they do not carry their own policy. Get certificates from every sub before they start work.
• •Experience modification rate (EMR) directly affects your premium. An EMR below 1.0 means fewer claims than average and earns discounts. Above 1.0 means a surcharge. A strong safety program is the best way to lower your EMR over time.
• •Audit at year-end:Workers' comp premiums are based on estimated payroll at the start of the policy. An audit at year-end adjusts the premium based on actual payroll. Budget for this so a large audit bill does not catch you off guard.

General liability (GL) is the foundation of every contractor's insurance program. It covers third-party bodily injury, property damage, and completed operations claims — the most common risks on any job site.

Common GL claims for contractors

• •A homeowner trips over materials left on a walkway and breaks an ankle
• •Your crew accidentally damages a client's hardwood floors while moving equipment
• •A plumbing installation you completed six months ago leaks and causes $50,000 in water damage (completed operations claim)
• •Debris from your roofing job damages a neighbor's car

Additional insured requirements

Nearly every GC will require subcontractors to name them (and often the property owner) as additional insureds on their GL policy. This means if a claim arises from your work, the GC gets coverage under your policy as well. Most insurers offer additional insured endorsements at no extra charge or for a nominal fee.

Inland marine insurance — also called contractor's equipment insurance or tools coverage — protects your tools, equipment, and materials while they are in transit, on job sites, or in temporary storage. Unlike commercial property insurance (which covers items at a fixed location), inland marine follows your property wherever it goes.

What it covers

• •Power tools, hand tools, and small equipment (drills, saws, compressors, generators)
• •Heavy equipment (excavators, skid steers, scaffolding)
• •Materials and supplies in transit or on-site
• •Leased or rented equipment (with proper endorsement)

Cost

Inland marine typically costs 1-3% of the total value of covered equipment per year. A contractor with $50,000 in tools and equipment might pay $500-$1,500/year. Deductibles range from $250 to $2,500. Coverage can be added to an existing policy or purchased standalone.

Surety bonds are not insurance in the traditional sense — they are financial guarantees. If you fail to meet your obligations, the bond pays the injured party, and you must reimburse the bonding company. There are three main types contractors encounter:

Bond premiums are based on the bond amount, your credit score, financial statements, and experience. Contractors with strong credit (700+) and clean financial statements pay 1-3% of the bond amount. Those with poor credit or limited history may pay 5-15% or require collateral.

Builder's risk insurance (also called course of construction insurance) covers buildings and structures during construction or major renovation. It protects against damage from fire, wind, theft, vandalism, and certain other perils while the project is underway.

Key details

• •Who buys it:Either the property owner or the general contractor, depending on the contract. On commercial projects, the owner typically purchases builder's risk; on residential, the GC often carries it.
• •Coverage amount: Usually the completed value of the project, including materials and labor
• •Duration: The policy covers the construction period and expires when the building is occupied or the certificate of occupancy is issued
• •Cost:Typically 1-4% of the total construction value. A $500,000 residential build might cost $5,000-$20,000 for builder's risk coverage

Yes, if you use any vehicle for business purposes. Personal auto policies exclude business use, and contractors rely heavily on trucks and vans to haul tools, materials, and equipment between job sites. A denied claim after an accident while driving to a job site can be financially devastating.

Coverage to include

• •Liability: $500K-$1M combined single limit is standard for contractors
• •Collision and comprehensive: Covers damage to your own vehicle
• •Hired and non-owned auto:Covers vehicles you rent or employees' personal vehicles used for work
• •Cargo coverage: Protects materials and supplies in transit (separate from inland marine for installed tools)

Commercial auto for a single contractor truck typically costs $1,200-$2,400/year. Fleets of 3-5 vehicles cost $3,500-$10,000/year depending on driving records and vehicle types.