Understanding Contractor Bonds and Insurance
The difference between surety bonds, general liability insurance, and workers' compensation, what each covers, why it matters, and how to verify each before hiring. Bond and insurance minimums on this site are documented per state from official state licensing boards across all 50 states and DC; see our methodology.
Disclaimer: This guide is for general consumer education. Insurance requirements vary by state and project type. Consult your state licensing board for specific minimums in your state.
Three Types of Financial Protection, Why You Need All Three
Many homeowners think a "licensed and bonded" contractor is fully protected. In reality, "bonded" refers to a surety bond, which is just one of three financial protections you need. Here's what each one covers:
| Protection Type | Covers | Typical Amount | Required? |
|---|---|---|---|
| Surety Bond | Incomplete/defective work, contract abandonment | $5K–$500K | In most licensed states |
| General Liability | Property damage, bodily injury on the job site | $500K–$2M | Required in most states |
| Workers' Compensation | Worker injuries on your property | Statutory (state-set) | If contractor has employees |
Surety Bonds: What They Are and What They Don't Cover
A contractor surety bond is a three-party agreement:
- Principal: The contractor
- Surety: The bonding company (guarantor)
- Obligee: The state (or you, the homeowner, as the intended beneficiary)
If the contractor abandons the job, fails to complete work, or causes damage that they refuse to fix, you can file a claim against the bond. The bonding company pays (up to the bond amount), then seeks repayment from the contractor.
Bond Limits Matter
State-required bonds most commonly fall between $5,000 and $25,000, though a handful of states (Nevada, for example) scale the bond up to $500,000 based on a contractor's monetary work limit. On a $150,000 renovation, a $10,000 bond provides limited protection. Bonds are minimum protection - not comprehensive coverage. For large projects, you may want to negotiate a higher bond amount in the contract.
How to Verify a Bond
The contractor's bond status is listed in your state's license lookup database. Look for the bonding company name and the bond amount. You can also call the bonding company to confirm coverage is current.
General Liability Insurance: Your Property Protection
General liability (GL) insurance covers:
- Accidental damage to your property during work (e.g., a wall collapse)
- Bodily injury to a third party caused by the contractor
- Completed operations liability (damage discovered after job completion)
Without GL coverage, if a contractor damages your property, you're filing against their personal assets - which may be nothing. Always require minimum $500,000-$1,000,000 in general liability.
Certificate of Insurance, and Why to Call
Ask for a Certificate of Insurance (COI) naming you as an additional insured. This means the policy covers claims arising from your project specifically.
Critical step: Call the insurance company directly (number on the COI, not one the contractor provides) to verify: (1) the policy is current, (2) the limits match what's on the COI, and (3) the "additional insured" endorsement has been added for your project. Fake and expired COIs are a known fraud pattern.
Workers' Compensation: Your Liability Protection
This is the insurance most homeowners forget, and the one with the most personal financial risk.
If a contractor's employee is injured while working on your property, and the contractor doesn't have workers' compensation insurance, the injured worker may be able to sue you as the property owner. This exposure exists even when the worker was employed by the contractor, not you.
When Workers' Comp Is Required
- Any contractor with employees (varies by state, usually 1-5 employees threshold)
- Note: A solo contractor (sole proprietor, no employees) may be exempt in many states
- Ask explicitly: "Do you have employees? Do you carry workers' comp?"
How to Verify
Ask for a separate Workers' Compensation COI. Verify it with the insurance carrier listed. Some states have a free online employer database to check coverage status.
Recovery Funds: State-Level Additional Protection
Some states maintain contractor recovery funds - pools of money consumers can claim against when all other remedies (bonds, insurance, court judgments) haven't made them whole. Notable examples:
- California CSLB Recovery Fund: Up to $30,000 per claim for licensed contractor fraud
- Arizona ROC Residential Contractors' Recovery Fund: Up to $30,000 per claim
- Florida CILB: Complaint-based enforcement with restitution orders
Check your state's licensing board to see if a recovery fund is available.
Your Insurance Verification Checklist
- ☐ Received COI for General Liability (minimum $500K)
- ☐ COI names you as additional insured
- ☐ Called insurer to verify GL policy is current
- ☐ Confirmed GL "additional insured" endorsement added
- ☐ Received separate Workers' Comp COI (if contractor has employees)
- ☐ Verified Workers' Comp policy is current
- ☐ Verified surety bond status in state licensing database
- ☐ Confirmed bond amount is adequate for your project size