What Insurance Do Contractors Need?

What contracts usually require

Most construction, service, and maintenance contracts in California name the coverages a contractor has to carry before work starts. The list is fairly consistent: commercial general liability, workers’ compensation once there are employees, and commercial auto for vehicles used in the work. Larger contracts often add excess or umbrella liability, and trade-specific contracts may add pollution, professional, or installation coverage.

The limits are set by the contract, not by the trade. A residential remodel and a hospital tenant improvement can involve the same crew and completely different insurance requirements.

The endorsements matter as much as the limits

Meeting a limit is the easy part. What usually causes a certificate to be rejected is the endorsement language behind it.

• Additional insured status extends the contractor’s liability coverage to the party hiring them. Ongoing operations and completed operations are covered by separate forms, and a contract that asks for both needs both.
• Primary and non-contributory wording establishes that the contractor’s policy responds first, rather than sharing with the owner’s policy.
• Waiver of subrogation prevents the contractor’s insurer from pursuing the hiring party after paying a claim.
• Notice of cancellation is the one most often assumed and least often present. Standard certificate language does not obligate anyone to notify a certificate holder, so a specific endorsement is what makes notice real.

Blanket endorsements and their limits

Many contractors carry a blanket additional insured endorsement, which grants status automatically to anyone the contractor has agreed in writing to name. That is efficient, and it is usually acceptable. It also means the protection depends entirely on what the written agreement says, so a handshake arrangement produces nothing.

Licensing sits alongside insurance

In California the Contractors State License Board sets its own requirements, including a contractor’s bond and, for licensees with employees, proof of workers’ compensation. A bond is not liability insurance and does not respond the way a liability policy does. The two are often confused on a certificate.

Certificates are evidence, not coverage

A certificate of insurance records what was in force on the day it was issued. It does not amend the policy, and it does not keep the policy in force. Evidence should be refreshed through the life of a long project rather than collected once at the start.

Where to start

We read the insurance section of the contract with you, compare it against what the policy actually says, and flag the gaps before the work does. You decide what to carry and what to negotiate. See contractors insurance and construction insurance, or request a certificate of insurance if you are already a client.