How to Handle an Uninsured Subcontractor: A General Contractor's Playbook

TL;DR: When you discover an uninsured sub on site, stop their work within 30 minutes and document the stop-work order in writing, then call the producer directly to confirm whether coverage lapsed, was cancelled, or never existed. Your own GL carrier can deny claims caused by knowingly uninsured subs, so every additional hour they remain on site is uninsured exposure that lands on you.

It's the call every GC dreads. You're running a project, a sub has been on site for two weeks, and someone in the office finally gets around to checking their paperwork. Their COI lapsed six weeks ago, or never existed, or is in the wrong entity's name, or is for a different coverage type entirely.

You have an uninsured subcontractor on your jobsite right now. What do you do?

This post is a playbook (not legal advice) for handling exactly that situation. The steps below are in priority order. Do them fast.

Step 1: Stop the Work

Within the next 30 minutes: get the sub off the jobsite.

This is counterintuitive if the sub is doing critical path work, but every additional hour an uninsured sub is on your site is another hour of uninsured exposure. If they injure someone, damage property, or cause a delay, you're holding the bag. Your own insurance may refuse to cover losses caused by a knowingly uninsured sub, because policies typically exclude coverage for subs you failed to require adequate insurance from.

Call the sub's foreman directly: "We have an issue with your insurance documentation. I need you to stop work and pull your crew off site until we resolve it. I'll call you within the hour with next steps."

Document the stop-work instruction in writing (a text or email is fine) with the timestamp. If a claim ever emerges, you want a record that you acted immediately upon learning of the gap.

Step 2: Figure Out Exactly What You Have

Before you do anything else, get the facts straight. There are several possibilities and they require different responses:

Possibility A: No COI Ever Provided

The sub was onboarded without ever submitting documentation. This is an internal process failure, and you should figure out how it happened so it doesn't happen again. The immediate fix is the same either way: get the COI now or terminate the relationship.

Possibility B: COI Was Provided But Has Expired

The sub had valid insurance when the job started, but their policy expired or lapsed somewhere during the project. Most common scenario. Fix: confirm whether coverage is actually lapsed or if there's a grace period / recent renewal you don't yet have documentation for.

Possibility C: COI Exists But Is for the Wrong Thing

The sub gave you a COI, but on closer inspection: wrong policy type (personal auto instead of commercial), wrong entity name, insufficient limits, no AI endorsement, or doesn't cover the scope of work they're doing. The coverage is there but it doesn't protect you.

Possibility D: Sub Claims to Have Insurance But Won't Produce Documentation

Red flag. Either they don't have it, the producer can't issue the certificate (carrier issues), or the policy has been cancelled for non-payment. Treat this the same as no insurance.

Step 3: Call the Sub's Producer Directly

If the sub claims to have insurance but you can't verify it, don't play broken-telephone with the sub. Call the insurance agency on the last COI you had and ask them directly:

"Hi, this is [you] from [company]. [Sub name] is working on one of our jobs. Can you confirm their general liability policy is currently active, and if so, email me a current Certificate of Insurance today listing [your company] as Additional Insured?"

This accomplishes three things:

1. Gets you a real, current answer from the insurer (not the sub).
2. Flags the producer that their client is working uninsured and prompts them to fix it fast.
3. Documents that you made a good-faith effort to verify coverage.

If the producer tells you the policy is cancelled, expired, or non-existent, you have your answer and you need to go to Step 4.

Step 4: Weigh Your Options

Once you confirm the sub has no coverage, you have three paths:

Path A: Get Them Insured Fast (Preferred)

If the sub is willing and able to buy coverage quickly, this is the cleanest fix. Many commercial insurance producers can write a new CGL policy within 1 to 3 business days. The sub has to pay for it out of pocket, and their premium will be high given they're mid-job, but you get the coverage you need and the project resumes.

Require the producer to email you the new COI directly (not through the sub) and verify the effective date is retroactive to the start of their work on your job. If the policy only covers going forward, you're still exposed for the work already performed.

Path B: Issue a Back-Charge and Replace the Sub

If the sub can't get coverage or refuses to, terminate the subcontract per whatever default clause you have. Issue a back-charge for any costs you incur bringing in a replacement and any delay costs. Replace the sub with someone vetted and properly insured.

This is the expensive option, but sometimes necessary. Document everything (termination letter, back-charge calculation, replacement cost records) in case the sub disputes it.

Path C: Indemnification Agreement + Escrow (Only If You Must)

In very rare cases (critical path, specialty work, one-off emergency), you might accept an uninsured sub temporarily if they sign a strong indemnification agreement and you withhold payment in escrow equal to your exposure.

This is a terrible idea and you should avoid it whenever possible. An indemnification agreement from a sub who can't afford insurance is worth approximately nothing. If a claim hits, you're suing a company that probably has no assets. Use this option only under attorney guidance and with your own insurance broker's involvement.

Step 5: Document Everything for Your Insurance File

Whatever you decide, document:

• When you discovered the gap. The exact date and time you learned the sub was uninsured.
• What you did in response. Stop-work order, phone calls, emails, decisions made.
• The resolution. New COI issued, sub terminated and replaced, or whatever path you took.
• Work performed during the uninsured period. Scope, location, duration. If a claim emerges later, you want a clear record of what exposure existed.

Your own insurance carrier wants to see that you acted reasonably once you knew. Evidence of prompt action can mean the difference between your carrier defending a claim and denying it.

Step 6: Call Your Own Insurance Broker

Let your own broker know what happened, when you discovered it, and how you resolved it. They'll tell you whether to formally notify your carrier or just keep the documentation in case a claim emerges. In most cases, a quick, proactive call to your broker is all it takes to protect yourself.

Preventing This From Happening Again

Every uninsured-sub incident is really an intake process failure. The sub should never have been on site without verified insurance in the first place. Fix the system, not just this one incident.

The Rules That Prevent This

1. No paperwork, no purchase order. Subs don't get onboarded, don't get project assignments, don't get payment authorization until all compliance documents are on file. Make this a hard rule with no exceptions.
2. Automated expiration tracking. Reminders at 90, 60, 30 days before COI expiration so you can get a renewal before anything lapses.
3. Monthly compliance review. Once a month, pull a full compliance report for every active project and every active sub. Flag anything expiring in the next 60 days.
4. One person accountable. Compliance is everybody's job in theory and nobody's job in practice. Assign it to one person (usually a project administrator) and make it part of their weekly workflow.
5. Stop trusting spreadsheets. Spreadsheet tracking works until it doesn't. The day the spreadsheet breaks is the day a sub slips through.

How PaperBoss Prevents Uninsured Sub Incidents

PaperBoss is built to make uninsured-sub incidents impossible. The workflow:

• Subs can't be activated without uploading a valid COI first
• Expiration dates are captured automatically and tracked with 90/60/30-day alerts
• Missing renewals escalate automatically (first to the sub, then to the GC)
• A live dashboard shows which subs are compliant, which are expiring, and which are missing documents
• One-click audit reports for insurance carriers, owners, and auditors

If you're currently tracking subs in a spreadsheet or email inbox, PaperBoss eliminates the category of problem that causes incidents like the one this article describes.

Start a 14-day free trial, no credit card required.

Frequently Asked Questions

What's my legal liability for an uninsured sub's injuries?

It varies by state and circumstance. In many states, if a sub is injured on your project and has no Workers' Comp coverage, you can be held responsible for their injuries under statutory employer doctrines. Consult a construction attorney for your specific situation.

Does my own CGL cover me if my sub is uninsured?

Maybe, maybe not. Most commercial construction CGL policies have subcontractor warranty clauses requiring you to obtain insurance from your subs at certain minimum levels. If you violate those warranties by hiring uninsured subs, your own coverage may be invalidated for losses that sub causes. Call your broker.

Can I just make the sub sign an indemnification agreement instead?

You can, but indemnification without insurance is close to worthless. If the sub has no assets to indemnify you with, the paper agreement won't help when a real claim hits. Require both: insurance AND indemnification, not one or the other.

How do I check if a sub's insurance is actually current?

Call the producer listed on the most recent COI and ask directly. Most agencies will confirm policy status over the phone for a legitimate third party. For additional verification, ask the agency to email you a fresh certificate dated that day.

What if the sub can't afford insurance at all?

Then you can't hire them on a commercial project. Insurance is the price of admission in construction, and hiring uninsured subs is risking your company for their savings. There are no good workarounds.

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This article is for educational purposes only and does not constitute legal or insurance advice. If you have an uninsured subcontractor situation, contact your construction attorney and insurance broker immediately.