An independent insurance broker who works with California contractors can read the insurance section for you, usually free. The broker compares your contract to your policies, then places any missing endorsement, higher limit, or umbrella before your start date. Who this is for: California contractors holding a contract or bid package with an insurance exhibit they are not sure they meet.
The short version
- A broker compares the contract to your policies for free. That is how they learn what to place.
- A California commercial subcontract cannot make you pay for the general contractor's own mistakes. It can still make you cover your own work.
- California public jobs add bid security, prevailing wage, and state registration. Registration needs current workers comp.
- Hire an unlicensed sub in California and the law treats that crew as your employees for workers comp.
- Send the contract before you sign. Most fixes take a day to two weeks, and a rejected certificate delays your start.
Who actually does this work in California?
| Who | What they can do | What they cannot do |
|---|---|---|
| Independent broker | Read the contract, add endorsements (changes to your policy, usually one extra page), place an umbrella, and issue certificates | Change the contract wording |
| Your insurer's own agent | Endorse the one policy that company wrote | Shop other insurers |
| Your customer's insurance compliance desk | Say what is missing from your certificate | Advise you on your own policy |
| Construction attorney | Negotiate the indemnity and insurance wording | Place coverage |
| Online insurer chat | Issue a basic certificate | Usually cannot add wording that protects your customer after the job is finished |
What does a California construction contract usually ask for?
Most contracts want the same four policies. The extra wording is where certificates get rejected. See what a construction contract needs.
| Policy | Common contract requirement | California note |
|---|---|---|
| General liability | $1,000,000 per occurrence (the most paid for one incident), $2,000,000 for the year | The Contractors State License Board (CSLB) forces this on limited liability company licensees only. Contracts want it from everyone. |
| Workers comp | State limits plus $1,000,000 employers liability (the part that pays if an employee sues you) | Required from your first employee (Labor Code 3700). CSLB wants the certificate. |
| Commercial auto | $1,000,000 combined single limit | The state minimum since January 1, 2025 is 30/60/15, far below this. |
| Umbrella | $1,000,000 to $5,000,000 above your other liability policies | A harder buy in California than in most states. Start early. |
What is different about a California contract?
Three California rules change how you read the insurance section.
You cannot be made to pay for the general contractor's own mistakes. On a commercial subcontract signed since 2013, a general contractor cannot push its own careless work, its own design problems, or anything outside your agreed scope onto you (Civil Code 2782.05). It can still make you add it to your liability policy for your own work. That part is normal.
An unlicensed sub becomes your employee. Labor Code 2750.5 treats a worker doing licensed work without a license as the employee of whoever hired them. Their injuries land on your workers comp. Ask for the CSLB license number and a certificate of insurance (a one page summary of their policies) first. See workers comp and 1099 workers.
Public jobs have extra steps. Bids need security of at least 10 percent. You and your subs must register with the Department of Industrial Relations, and that needs current workers comp.
What should I send the broker?
The insurance exhibit and the indemnity section. The first page of each policy, or your latest certificate. Your CSLB license number and payroll by trade. And the start date, which sets the order of the fixes.
How long do the fixes take and what do they cost in California?
These are national illustrative ranges, not California rates. No source publishes a California price for any of them. Your trade, payroll, limits and claims history set the real number.
| Fix | Typical time | Illustrative cost |
|---|---|---|
| Add your customer for your ongoing work (additional insured) | 1 to 3 days | Often no charge with blanket wording |
| Keep that protection going after the job is finished (completed operations) | 1 to 3 days | A separate endorsement, sometimes free, sometimes $50 to $300 |
| Your policy pays first, your customer's does not chip in (primary and noncontributory) | 1 to 3 days | Usually its own endorsement, often free. A few insurers build it into the additional insured form, so ask for the endorsement page |
| Your insurer agrees not to chase your customer for money it paid (waiver of subrogation), workers comp | 1 to 3 days | About 2 to 5 percent of that job's premium |
| $1,000,000 umbrella | 1 day to 2 weeks | Roughly $700 to $3,000 a year |
| $5,000,000 umbrella | 1 to 3 weeks | Roughly $3,500 to $14,000 a year, fewer insurers offer it |
Blanket wording adds the party you signed with, for your ongoing work. An owner, lender, or architect above your customer usually has to be added by name. Do it before work starts, because insurers rarely backdate.
Then your customer wants proof. See what a general contractor looks for on a certificate, or who reviews a California bid's insurance requirements for free.
What this looks like in real life
Illustrative example. It is typical of what we see and is not a promise of how any specific situation would be handled.
The setup: A plumbing subcontractor in San Diego signs a $420,000 subcontract on a hotel job. The exhibit asks for $2,000,000 general liability, a $5,000,000 umbrella, protection for the general contractor during and after the work, and $1,000,000 auto.
What went wrong: He carries $1,000,000, a $1,000,000 umbrella, and auto at $500,000. His certificate is rejected two days before the start date. Nobody had read the exhibit.
What it cost: Illustrative math: the bigger umbrella ran about $5,500 more a year, the auto increase about $600. The crew sat six working days, roughly $9,000 in idle labor.
The fix: A broker placed the umbrella, endorsed the auto and workers comp, and sent the endorsement pages with the certificate. Every fix was available before signing, at the same price.
Frequently asked questions
Q: Who can help me meet a construction contract's insurance requirements in California?
An independent commercial insurance broker who works with California contractors. The broker reads the insurance section, compares it to your policies, and places whatever is missing. Most do it free, because it is how they find out what to quote.
Q: The general contractor rejected my certificate. What do I do today?
Send the rejection and the contract to a broker the same day. Most rejections are missing wording, not missing coverage, and that change takes one to three business days. Do not start on a verbal go-ahead. Written permission does not create coverage for the gap.
Q: Can a general contractor in California make me pay for its own mistakes?
Not on a commercial subcontract signed since 2013. Civil Code 2782.05 voids clauses making you cover the general contractor's own active negligence, design defects it supplied, or work outside your scope.
Q: What if my current insurer will not add what the contract wants?
A broker can shop the whole program elsewhere, including specialty markets you cannot apply to online. Sometimes the fastest path is an umbrella from a second company, sitting on top of the policy you have.
Q: How fast can the gaps be fixed before my start date?
Changes to a policy usually take one to three business days. An umbrella takes a day to two weeks in California, longer for $5,000,000. Send the contract the day you get it.
Q: Does my California license itself require general liability insurance?
Only for limited liability companies. CSLB makes an LLC licensee carry at least $1,000,000, rising by $100,000 for each person listed on the license above five, capped at $5,000,000. Corporations, partnerships and sole proprietors have no CSLB liability requirement, but their contracts do.
How Morrow helps
Morrow is a licensed independent commercial insurance brokerage that works with contractors and trades every day. Reading a California contract's insurance section and matching it to your policies is the most common thing our California contractor clients ask us to do.
- Free contract review. Send us the contract or bid documents and we mark up the insurance section in plain English, whether or not you buy anything from us.
- Free, instant certificates. Clients issue their own certificates of insurance online in about a minute, any hour, any day, at no charge.
- Markets you cannot reach online. One application, shopped across many insurance companies for general liability, workers comp, auto, umbrella, and pollution coverage.
One more thing. This article is general information and is not legal advice or a statement of coverage. Your contract and your policy wording control in every case. Requirements vary by customer, by state, and by insurance company, so have a licensed advisor review your own contract and your own policy before relying on any of it.
Last updated: Reviewed by the Morrow commercial lines team. Last updated September 2026.