General Liability Insurance for California Plumbing Contractors

Only if your license is held by a limited liability company. California does not require a sole proprietor, partnership or corporation to carry general liability insurance as a condition of holding a CSLB license. For those licensees, general liability is driven by customers, general contractors, property managers and the contracts you sign, not by the license.

For an LLC licensee, Business and Professions Code §7071.19 requires general liability insurance with a cumulative limit of at least $1,000,000 if the LLC has five or fewer personnel of record, plus $100,000 for each additional person of record, and the requirement does not go above $5,000,000. The policy must be written by a California-licensed insurer or an eligible surplus lines insurer. An LLC also files a separate $100,000 surety bond for the benefit of its employees and workers (B&P §7071.6.5), on top of the $25,000 contractor's bond every licensee carries.

Two practical points. First, the LLC limit is tied to the number of people listed on the license, so re-check the required limit whenever you add members or officers. Second, the CSLB minimum is a floor, not a recommendation: general contractors and commercial property owners commonly ask every plumbing subcontractor, LLC or not, for at least $1,000,000 per occurrence by contract.

If you are not an LLC and sign no contracts that require coverage, nothing in California law compels you to buy general liability. One failed supply line in an occupied home is the reason most working plumbers carry it anyway.

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Subcontract agreements commonly ask a plumbing subcontractor for $1,000,000 per occurrence and $2,000,000 general aggregate, with the products-completed operations aggregate also at $2,000,000. Larger commercial, public-works and multi-family projects often ask for more — $2,000,000 per occurrence, or a $5,000,000 or higher total that you reach by stacking an umbrella or excess policy over the general liability.

These numbers are a contract matter, not California law. No California statute sets the limits a general contractor may demand from a subcontractor. The only limit the state imposes on a plumbing contractor is the CSLB requirement for LLC licensees (at least $1,000,000, rising with personnel of record), and even that is a licensing minimum, not a cap on what a customer can ask for.

The limits are usually only part of the insurance exhibit. The same section typically asks you to name the general contractor and owner as additional insureds for ongoing and completed operations, to make your coverage primary and non-contributory, to waive subrogation, and sometimes to carry the coverage for a stated number of years after completion. Each of those is a separate endorsement that your carrier may or may not offer on your policy.

Before you sign, send the insurance exhibit to your broker. If the contract asks for something your policy cannot provide, it is far better to negotiate the exhibit than to discover the gap when the certificate is rejected — or after a loss.

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Generally yes for the resulting damage to other people's property, and generally no for the cost of redoing your own work, subject to the policy's terms, exclusions and endorsements.

A standard commercial general liability form pays damages you become legally obligated to pay because of property damage caused by an occurrence — an accident, including continuous or repeated exposure to the same condition. A cross-threaded flex connector that lets go five weeks after you leave and soaks the ceiling below is the classic example. The drywall, flooring, cabinets and contents the water ruined are third-party property damage, and because the work was finished, the claim falls under the policy's products-completed operations coverage. The carrier generally pays the covered damages, less any deductible, and defends you if the customer or their insurer sues.

What the form generally does not pay for is the connector itself and your labor to redo the connection. The "damage to your work" exclusion removes the cost of repairing or replacing your own defective work, and the "damage to property" exclusions remove damage to the particular part of the property you were working on at the time. The policy is not a warranty on your installation.

Close cases turn on the endorsements. Many contractor policies carry a fungi or bacteria exclusion that removes mold remediation, a pollution exclusion that carriers have applied to sewage, and sometimes exclusions for prior work, residential or multi-family work, or uninsured subcontractors. Read those before the first slow leak, not after.

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Completed operations coverage is the part of a general liability policy that responds to bodily injury or property damage that happens after your work is finished and you have left the job, or after the work has been put to its intended use. For a plumber it is the most important coverage on the policy.

A standard commercial general liability form splits liability into two buckets. Premises/operations covers what goes wrong while you are on site and working — a dropped tool, a flooded floor during a repipe. Products-completed operations covers what goes wrong later — the water heater connection that weeps behind a wall for a month, the slab leak at last spring's repair, the gas fitting that fails after inspection. Almost every expensive plumbing claim is a completed-operations claim, because leaks develop over time and are discovered after you have been paid.

Completed operations usually carries its own aggregate limit on the declarations page, separate from the general aggregate. Check that it is there, that it matches your occurrence limit, and that no endorsement removes or sublimits it. A policy with completed operations stripped out is cheap for a reason, and a general contractor's insurance exhibit will reject it.

Coverage generally applies under the policy in force when the damage occurs, not when the work was done, so keep continuous coverage even in slow years. Many subcontracts also ask you to name the general contractor as an additional insured for completed operations, which requires a specific endorsement.

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It depends on the policy's pollution exclusion, and this is one of the less settled areas of contractor liability coverage. A sewage backup caused by your work is property damage from an occurrence, so on its face a standard commercial general liability form responds. The question is whether raw sewage counts as a "pollutant" that the exclusion removes.

Many contractor policies carry a total pollution exclusion that removes coverage for damage arising out of the discharge, release or escape of pollutants, defined broadly as any solid, liquid, gaseous or thermal irritant or contaminant, including waste. Carriers have taken the position that raw sewage, and some drain-cleaning chemicals, fall within that definition. Courts have gone both ways, depending on the exact wording of the exclusion and the facts of the loss, so neither you nor the carrier can assume the answer in advance.

If drain, sewer, septic or grease-trap work is part of your business, treat this as a placement question, not a claim question. Ask your broker to confirm in writing how the carrier treats sewage releases, and whether a limited pollution endorsement or a contractor's pollution liability policy is available to fill the gap. Some contractor programs carry an exception for sewage backup caused by the insured's work; many do not.

The exclusion and any exception are carrier terms, not California law, and they vary by policy. The time to find out which you have is at quote and renewal, not after a backup floods a finished basement.

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Usually when a contract asks for higher limits than your general liability policy carries, or when the size of your work means a single bad loss could exceed your primary limits. No California law requires a plumbing contractor to carry an umbrella; the only state-mandated liability limit is the CSLB requirement for LLC licensees, which can be met with primary coverage.

An umbrella (or excess liability) policy sits over your general liability, commercial auto liability and the employer's liability part of your workers' compensation policy. When a covered claim exhausts the limit of an underlying policy, the umbrella pays the rest, up to its own limit. Because it responds only after the primary policy has paid, it is generally the least expensive way to add a large amount of limit.

Common triggers for a plumbing contractor:

• A general contractor's or owner's insurance exhibit asks for $2,000,000 per occurrence, or $5,000,000 or more in total, reached by stacking the umbrella over a $1,000,000 primary policy.
• Commercial, multi-family, public-works or hospital work, where property values and the number of people exposed to a gas or water loss are high.
• A growing service fleet, since a van in a freeway collision is often the likeliest seven-figure claim.

Check the umbrella's terms, not just its limit. Some follow the underlying exclusions and some add their own, and most require specified minimum underlying limits. If a contract extends additional insured and primary and non-contributory requirements to the umbrella, confirm that before signing.

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