Most contractors manage subcontractor insurance the same way.
Collect a certificate. Drop it in a folder. Hope.
That’s not a system. That’s a prayer.
And it holds up right until a sub’s work causes a claim, their coverage doesn’t respond the way you assumed, and the loss lands on your policy, your experience mod, and your next renewal.
Here’s the good news: protecting yourself from a sub’s risk isn’t complicated. It’s four steps most people never put in order. Do them every time and you close the gaps before they open.
Step 1 — Set the standard (before you hire)
You can’t hold a sub to a requirement you never set.
Decide the minimum coverage every sub must carry — limits, additional insured for ongoing and completed operations, primary and non-contributory, waiver of subrogation, workers’ comp — and build it into the subcontract. In writing. Every time.
If it’s not in the contract, it isn’t a requirement. It’s a hope.
Step 2 — Vet the sub (before you commit)
Insurance is only one piece of whether a sub is safe to bring on.
Before you sign anyone, look at the whole picture. Are they licensed and in good standing? What does their safety record look like — their X-Mod, their incident history? Can their carrier actually deliver the additional-insured and waiver wording you require? Do their references and financials hold up?
A sub who can’t put those answers on paper is telling you something. Listen the first time.
Step 3 — Verify their coverage (before they start)
This is the step that separates the contractors who get burned from the ones who don’t.
When the COI arrives, don’t just file it. Check it against the standard you set:
- Are you actually named as additional insured — ongoing and completed operations?
- Is the primary and non-contributory wording there?
- Is the waiver of subrogation there?
- Are the limits right, and is the policy dated to cover the entire job?
A certificate that “looks fine” and a certificate that actually meets your requirements are not the same document. Sixty seconds now can save you a very bad year later.
Step 4 — Track it (for the life of the job, and beyond)
Coverage expires. Jobs run long. People forget.
Log every sub’s policy dates and watch the expirations, so a lapse never slips through mid-project. And keep the whole file — questionnaire, certificate, endorsements — for years after the job closes, because in California a construction-defect claim can show up long after the last nail goes in.
That’s the whole system
Set the standard. Vet the sub. Verify the coverage. Track it over time.
Four steps. Run them every time and a sub’s risk stays the sub’s risk — instead of quietly becoming yours.
The contractors who never get the 2 a.m. phone call aren’t lucky. They’re just doing these four things while everyone else is collecting certificates and hoping.