08/16/2026
"Can you send me a certificate?"
If you do work for other businesses, a general contractor, a property manager, or a city, you've heard it. And most owners send the request straight to their agent without knowing what's actually being asked for. Here's the plain-English version.
A Certificate of Insurance (COI) is proof, not coverage. It's a one-page snapshot of the policies you already have. It doesn't add anything, and it doesn't guarantee a claim gets paid.
Additional insured status DOES change coverage. When a client asks to be "named additional insured," you're extending your liability policy to protect them for work you perform. That requires an endorsement on your policy, not just a line on a certificate.
Waiver of subrogation means your carrier gives up the right to go after that client after paying a claim. Common on construction and workers' comp. Also an endorsement.
Three things I tell Tri-Valley owners:
1. Read the insurance section of the contract BEFORE you sign โ limits, endorsements, and notice requirements live there.
2. Ask for certificates from every sub you hire, and keep them current.
3. A certificate you can't back up with real coverage is a lawsuit waiting to happen.
Need one today? We can usually turn certificates around same day.
๐ 925-474-3405 | 855 Main St, Pleasanton | wallacewonginsurance.com