Last Updated: November 5, 2026
Quick Summary
To verify contractor liability coverage, request a certificate of insurance by email, then call the agent or carrier listed on it to confirm the policy is active, premiums are paid, and limits match. Also check the contractor’s license and the carrier’s NAIC number with your state insurance department.
- Ask for a certificate of insurance in writing before any contract is signed.
- The named insured on the certificate must match the entity you are paying.
- A COI proves a policy existed when issued, not that it is still active.
- Additional insured status requires an endorsement page, not just a certificate checkbox.
- If coverage cannot be confirmed, delay the work or hire a different contractor.
Table of Contents
- Why Verifying Contractor Liability Coverage Protects You
- How to Ask a Contractor for Insurance Before Hiring
- Reading a Contractor Certificate of Insurance Line by Line
- How to Verify Contractor Liability Coverage Online and by Phone
- Contractor Liability Insurance Coverage Limits and What They Mean
- What to Do When Coverage Cannot Be Confirmed
- Building a Repeatable Verification Workflow Before Your Next Project
- Frequently Asked Questions
Why Verifying Contractor Liability Coverage Protects You
When a contractor damages your home or a worker gets hurt on your property, the bills can land on you.
Contractor liability coverage is an insurance policy that pays for injuries and property damage a contractor causes while working. The policy belongs to the contractor, but it protects you as the property owner.
Here is why the check matters:
- If an uninsured worker is hurt on your property, your homeowners policy may face a claim.
- If a crew damages your home, you could pay for repairs out of pocket.
- A license alone does not prove a contractor carries insurance.
The Insurance Information Institute’s guide to liability insurance explains how liability claims work and why proof matters. A quick check now saves a long fight later.
How to Ask a Contractor for Insurance Before Hiring
Ask directly, in writing, and before any contract is signed. A qualified contractor expects the question and answers it without hesitation. Here is how to ask a contractor for insurance:
- Request a certificate of insurance (COI) by email so you have a written record.
- Name your project and ask that the certificate list you as an additional insured if your contract requires it.
- Ask for the insurance agent’s phone number so you can confirm the policy yourself.
- Set a deadline before work begins, not after.
Watch out: a contractor who dodges the request or promises to “send it later” is a red flag. Coverage that cannot be shown before work starts is coverage you cannot count on.
Reading a Contractor Certificate of Insurance Line by Line
A contractor certificate of insurance is a one-page summary of a contractor’s policy, and each line tells you something specific.
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What a certificate does not tell you:
- Whether premiums are paid and the policy is in force
- Whether your project type is excluded
- Whether you are listed as an additional insured
This is where most homeowners stop checking. The certificate is the start of the check, not the end.
How to Verify Contractor Liability Coverage Online and by Phone
Verifying contractor liability coverage online and by phone takes about ten minutes and closes the gaps a certificate leaves open. The phone call is also where you confirm the item most certificates cannot prove: whether you are an additional insured.
Online:
- Look up the contractor’s license through your state licensing agency’s lookup tool and confirm the license is active and in the right classification for your work.
- Search the state insurance department’s website to confirm the carrier is licensed; the NAIC number on the certificate is the fastest way to match the carrier.
- Check the contractor’s business registration with the state secretary of state or equivalent office and compare the legal entity name to the named insured on the certificate.
By phone:
- Call the insurance agent or carrier listed on the certificate, not a number the contractor gives you verbally.
- Give the policy number and ask whether the policy is active today and whether the premium is paid.
- Ask whether the limits on the certificate match the carrier’s records, including the each-occurrence and general aggregate limits.
- Ask whether your project type, roofing, remodeling, excavation, tree work, and so on, is covered or excluded.
- Ask whether the contractor’s policy includes a waiver of subrogation and primary and non-contributory wording, if your contract requires them.
The National Association of Insurance Commissioners offers state-by-state resources for checking a carrier. If the agent cannot confirm the policy, treat the coverage as unconfirmed.
Additional insured status and endorsements. A certificate of insurance is evidence of coverage; it is not the policy, and it does not by itself make you an additional insured. Because the endorsement is only one part of the contractor’s insurance record, verify contractor insurance coverage by checking the policy dates, limits, and other required documents together.
Watch out: an agent who says “you’re listed” but cannot produce the endorsement page is describing an intent, not coverage. Get the endorsement in writing before work begins.
Contractor Liability Insurance Coverage Limits and What They Mean
Contractor liability insurance coverage limits are the most a policy will pay for a single claim. Two numbers matter most: the per-occurrence limit and the aggregate limit.
- Per-occurrence limit: the cap for one incident.
- Aggregate limit: the cap for all claims during the policy period.
A policy with a low per-occurrence limit may not cover a serious injury or a major structural repair.
Our article on insurance for independent construction contractors explains the coverage construction contractors typically carry, which helps you judge whether a contractor’s limits are adequate.
What to Do When Coverage Cannot Be Confirmed
When coverage cannot be confirmed, do not let work begin. Pause the project and ask the contractor for a current certificate and a direct confirmation from the carrier. If the contractor cannot provide either, you have three options:
- Delay the work until proof arrives.
- Hire a different contractor who can show active coverage.
- Arrange your own coverage if you choose to proceed and the risk is yours to carry.
If you need to protect the contracting work yourself, you can get the protection you need with the right insurance policies. We would rather see a project delayed a week than see a homeowner absorb a claim alone.
Building a Repeatable Verification Workflow Before Your Next Project
Build the check into every project so you never skip it under deadline pressure. A simple workflow beats a scramble.
| Step | What to Do | When |
|---|---|---|
| 1 | Request COI by email | Before signing |
| 2 | Match named insured to contractor | Same day |
| 3 | Confirm policy is active with carrier | Within 2 days |
| 4 | Review limits and coverage types | Before work begins |
| 5 | Save all documents | Keep for the project |
For homeowners hiring after a loss, our tips on choosing the right contractor after a disaster pair well with this workflow. And if you want to spot weak spots in your own protection, read how to identify business insurance coverage gaps.
Frequently Asked Questions
How do I find out whether a contractor has liability insurance?
Ask the contractor for a certificate of insurance before any work begins. The certificate should list the named insured, policy number, policy period, and coverage limits. Then call the insurance agent or carrier listed on the certificate to confirm the policy is active. A certificate alone is a snapshot, so the phone call is what confirms the policy is currently in force.
What should I check on a contractor’s certificate of insurance?
Check four things: the business name on the certificate matches the contractor you hired, the policy period covers your project dates, the general liability limits are high enough for your project, and workers’ compensation coverage appears if the contractor has employees. Also look for additional insured status if your contract requires it. Any mismatch between the name on the certificate and the name on your contract is a reason to ask questions before signing.
Can I verify a contractor’s insurance online?
Yes, in many cases. Start with your state licensing agency’s lookup tool, which often shows whether a contractor’s license is active and sometimes whether insurance is on file. Then contact the insurance carrier or agent named on the certificate directly by phone or through their website. Some carriers offer policy verification portals. Online checks are a useful first step, but a call to the insurer remains the most reliable way to confirm contractor liability coverage is active.
What should I do if a contractor claims to be insured but cannot provide proof?
Do not let work begin. A contractor who cannot produce a certificate of insurance within a day or two is a risk you should not take on. Ask for the name of their insurance agent and carrier so you can verify directly. If they still cannot provide documentation, treat it as a sign they are uninsured and consider another contractor. Hiring an uninsured contractor can leave you exposed to liability for injuries or damage on your property.
The risk is simple: an unverified contractor can leave you holding a claim you never agreed to. BIG Insurance specializes in contractor and commercial coverage, with customized policies and efficient service that respects your time. Get started with BIG Insurance and confirm your next project is properly protected.
