Contractor Insurance California: CSLB Rules, GL, Bonds and More

Contractors buy insurance for two reasons. One is to protect the business when something goes wrong on a job. The other is simpler: without the right coverage, you don’t get the license, the contract, or the check.

I’ve worked with construction clients in Los Angeles and across California for more than 15 years, from one-truck handymen in the San Fernando Valley to general contractors running several jobs at once. This guide covers contractor insurance California requirements for general contractors and specialty trades, what the CSLB actually requires, what your GC or project owner will ask for, and where contractors most often get caught with gaps.

If you’re looking for a broader overview of commercial coverage first, start with my guide to commercial insurance in California. If you’re a contractor, keep reading. This one is written for you.

Why Contractor Insurance in California Is Different

Construction is one of the few industries where your insurance gets inspected by other people constantly. The state checks it. Your customers check it. General contractors, property managers, developers and public agencies check it before you set foot on site.

California adds its own layers. The Contractors State License Board (CSLB) ties insurance and bonding to your license. California’s construction defect laws expose builders to claims years after a job closes. And the state’s workers’ comp system is one of the most expensive and most strictly enforced in the country.

The result is that a contractor’s insurance program is less about “what policy do I need” and more about “what does each job, contract and license require, and does my program actually respond when it matters.”

General contractors vs. specialty trades

A general contractor (Class B license) coordinates the whole job and usually hires subs. That creates contractual risk: you’re promising the owner you’ll protect them, and you’re relying on your subs to protect you.

Specialty contractors (Class C licenses like C-10 electrical, C-36 plumbing, C-39 roofing, C-33 painting, C-27 landscaping) usually perform the work themselves. Their risk is more about the hazard of the trade itself, the tools and equipment they carry, and meeting the insurance terms the GC hands them.

Both sides need many of the same policies. The details are what differ, and the details are where claims get paid or denied.

CSLB Insurance Requirements

Let’s start with what the state requires to hold a license. These are the CSLB insurance requirements every California contractor should understand. They’re the floor, not the ceiling.

Workers’ compensation

Under California Labor Code §3700, virtually every employer with even one employee must carry workers’ compensation. Operating without it is a crime, and the Labor Commissioner can issue stop orders that shut down your jobsite, along with penalties.

For contractors, CSLB adds a licensing layer. If you have employees, you must have a current certificate of workers’ compensation insurance (or a certificate of self-insurance) on file with the board. If your policy lapses and the board is notified, your license can be suspended.

Historically, contractors with no employees could file an exemption certificate instead. That option has been shrinking. Roofing (C-39) contractors have been required to carry workers’ comp regardless of whether they have employees for years, and more recent legislation (SB 216) extended the requirement to additional classifications and, over time, toward licensees generally. Before you rely on an exemption, confirm with CSLB whether it’s still available for your classification and license status.

One more thing on exemptions: if you file one and then hire someone, even part-time, even “just for this job,” you are an employer that day. The exemption doesn’t protect you. I cover how rates and class codes work in detail in my California workers’ compensation guide.

Contractor license bond

Every active California contractor must maintain a contractor license bond. Since January 1, 2023, the amount is $25,000. It was $15,000 before that, so if you haven’t looked at your bond in a few years, make sure it was updated.

The license bond is not insurance for you. It protects consumers and workers who are harmed by violations of contractor license law. If the surety pays a claim, it will come back to you for reimbursement.

Depending on how your license is structured, you may also need a bond of qualifying individual. This typically applies when your Responsible Managing Employee (RME) qualifies the license, or when a Responsible Managing Officer (RMO) owns less than 10% of the company. The bond amount has matched the license bond. Check your license detail on CSLB to confirm which bonds apply to you.

Extra requirements for LLC-licensed contractors

If your license is held by a limited liability company, CSLB has additional requirements that corporations and sole proprietors don’t face.

• Liability insurance: LLC licensees must carry liability insurance with an aggregate limit of at least $1 million when five or fewer people are listed on the license, with an additional $100,000 required for each additional person, up to a maximum of $5 million.
• LLC employee/worker bond: An additional $100,000 bond for the benefit of employees and workers damaged by the LLC’s failure to pay wages and fringe benefits.
• Workers’ comp: Required if the LLC has employees, same as any other entity, with the classification rules above applying.

These rules come from California’s Business and Professions Code and are enforced through the license itself. If the insurance lapses, the license is at risk. Confirm the exact current figures with CSLB before you file, because requirements can change.

General liability disclosure

For most license types organized as sole proprietors or corporations, CSLB doesn’t require general liability insurance to hold the license. But California does require contractors doing residential work to disclose to customers whether they carry commercial general liability coverage. In practice, going without GL means losing most commercial work and a growing share of residential work too.

General Liability for Contractors: What Actually Matters

Contractor liability insurance California buyers usually compare GL quotes on price and limits. Those matter. But the endorsements and exclusions matter more. Two policies with the same $1 million limit can respond completely differently to the same claim.

For the basics of what GL covers, see my general liability insurance page. Here’s what’s specific to construction.

Completed operations coverage

Most construction claims don’t happen while you’re on the job. They happen after you’ve left. A leak shows up two winters later. A deck railing gives way. A fire traces back to a wiring connection.

That’s completed operations coverage, and it’s the heart of a contractor’s GL policy. It’s usually subject to a separate aggregate limit. Check that your policy includes it, that the limit is adequate, and that it isn’t restricted by endorsement.

California law also gives owners a long window to bring certain construction defect claims, up to 10 years for latent defects in many cases. That’s why I tell contractors to think about coverage over the long term, not just this year’s premium. If you retire, close the business or switch to a narrower policy, ask about how past work will be covered.

Residential exclusions

Some GL policies, especially cheaper ones in the non-admitted market, exclude or restrict residential work. The exclusion might apply to all residential, to new residential construction, to condos and townhomes, or to tract homes.

Contractors who work mostly in commercial and then take one residential remodel in Encino or Sherman Oaks can find out the hard way that the job was never covered. If you do any residential work at all, read the exclusions or have your broker confirm it in writing.

Condo and multi-unit exclusions are particularly common in California because of the history of construction defect litigation on those projects.

Subcontractor exclusions and conditions

This is the exclusion that hurts general contractors most. Many policies include language that excludes or limits coverage for work performed by subcontractors unless certain conditions are met.

Typical conditions include:

• Every sub must carry its own GL with limits at least equal to yours.
• Every sub must name you as additional insured.
• You must have a written contract with each sub that includes indemnification.
• You must collect and keep current certificates of insurance.

Some policies go further and exclude subcontracted work entirely. If you’re a GC who subs out most of the job, that exclusion means your policy may not respond to the majority of your actual exposure.

Other exclusions to check

• Action-over exclusion: removes coverage when an injured employee of a sub sues you after collecting workers’ comp. This is a common way GCs end up exposed.
• Height or depth limitations: some policies exclude work above a certain number of stories or below a certain depth.
• Classification limitations: coverage limited to the work described on your application. If you’re classified as a painter and you do drywall repair, that could be a problem.
• Earth movement, mold, EIFS and roofing restrictions: common in California and worth reading carefully.
• Prior work exclusions: excluding claims from projects completed before the policy started.

The mistake I see most often isn’t that a contractor bought too little coverage. It’s that they bought a policy that looked fine on the certificate and was full of holes inside.

Additional Insured, Waiver of Subrogation and Primary Non-Contributory

If you’ve ever received a subcontract agreement, you’ve seen these three phrases. Here’s what they mean in plain English.

Additional insured (AI)

Being named as additional insured means the GC, owner or developer gets coverage under your GL policy for claims arising from your work. If your crew causes an injury and the injured person sues the owner too, the owner tenders the claim to your carrier.

Contracts often specify which AI endorsement forms they want, such as coverage for both ongoing and completed operations. A “blanket” AI endorsement automatically adds anyone you’re required to add by written contract. That saves you from ordering endorsements for every job, but read the wording. Some blanket forms only cover ongoing operations, which doesn’t satisfy a contract that requires completed operations AI.

Waiver of subrogation

Normally, when your insurer pays a claim, it can go after whoever caused the loss to recover the money. A waiver of subrogation means your carrier gives up that right against the other party.

GCs and owners require it on GL, auto, workers’ comp and umbrella. On workers’ comp in particular, the waiver often carries an extra charge or requires a blanket endorsement. Get this set up before the job starts, not after the GC withholds payment.

Primary and non-contributory

This wording means your policy pays first, and it doesn’t expect the GC’s or owner’s policy to share the loss. It protects the upstream party’s own loss history and limits.

Most commercial contracts require it. If your policy doesn’t include a primary and non-contributory endorsement, you may be in breach of contract even if the claim is otherwise covered.

Want someone to read your subcontract insurance requirements before you sign? I review them for clients all the time and can tell you what your current policy already meets and what needs an endorsement. Call me at (323) 999-6067 or request a free coverage review.

What GCs and Owners Typically Require

Every contract is different, but the patterns are consistent. The table below reflects common requirements in Southern California commercial work. Public projects, large developers and certain property owners may require more.

Requirement	Typical ask on commercial jobs	What to watch for
General liability limits	$1M per occurrence / $2M aggregate	Per-project aggregate endorsement often required so one job doesn’t use up limits for all
Products/completed operations	$2M aggregate, maintained for a period after completion	Some contracts require you to keep coverage for several years after the job
Additional insured	Ongoing and completed operations	Blanket forms that only cover ongoing operations won’t satisfy this
Waiver of subrogation	GL, auto, workers’ comp, umbrella	Workers’ comp waiver may cost extra
Primary and non-contributory	GL and umbrella	Umbrella must follow form on this wording
Commercial auto	$1M combined single limit	Hired and non-owned auto often required even if you own no vehicles
Workers’ compensation	Statutory limits, employer’s liability $1M	Exemption certificates often not accepted by GCs
Umbrella/excess	$1M to $5M+, depending on project size	Must sit over GL, auto and employer’s liability
Notice of cancellation	30 days’ notice to certificate holder	Carriers may only provide this by endorsement

Residential homeowners rarely hand you a contract with these terms. But property managers, HOAs and commercial landlords in Los Angeles increasingly do, even for small jobs.

Wrap-up programs (OCIP and CCIP)

On larger projects, the owner or GC may run a wrap-up program: an Owner Controlled Insurance Program (OCIP) or Contractor Controlled Insurance Program (CCIP). The sponsor buys GL and sometimes workers’ comp for everyone working on that site.

If you’re enrolled, you’ll usually need to remove that payroll or revenue from your own policy and document it carefully. You’ll also want to confirm that your own GL doesn’t exclude wrap-up work entirely, and understand what happens after the wrap-up’s completed operations period ends.

Subcontractor Insurance and Audit Exposure

Subcontractor insurance is where many contractors lose money at the end of the policy year. It’s not a claim. It’s an audit.

How the audit works

Contractor GL and workers’ comp are usually auditable policies. You pay a deposit premium based on estimated payroll, revenue or subcontracted cost. After the policy year ends, the carrier audits your books and calculates the final premium.

If you paid a sub who didn’t have valid insurance, many carriers will treat that sub’s cost as if it were your own payroll. On workers’ comp, an uninsured sub’s workers may be treated as your employees. On GL, uninsured sub costs are often rated at a much higher rate than insured sub costs.

The result can be an audit bill you didn’t plan for, sometimes large enough to strain a small contractor’s cash flow.

How to protect yourself

• Collect certificates before the sub starts work, not when they send the first invoice.
• Check the dates. The certificate must cover the entire period the sub worked for you.
• Verify workers’ comp through CSLB’s license lookup, which shows the sub’s workers’ comp status or exemption.
• Get yourself named as additional insured with the endorsement attached, not just a checkbox on the certificate.
• Keep a file per sub, organized by policy year, ready for the auditor.
• Watch for exempt subs who show up with a helper. If they have a worker and no comp, that exposure may land on your policy.

In my experience, the contractors who never have audit surprises aren’t lucky. They just treat certificate collection as part of hiring a sub, the same as checking the license.

Independent contractor vs. employee

California uses a strict test for worker classification. Under Labor Code §2750.5, a worker performing work that requires a contractor’s license is generally presumed to be an employee if they don’t hold that license. So paying an unlicensed “sub” on a 1099 doesn’t make them a sub for insurance purposes. It likely makes them your employee, with all the workers’ comp and payroll consequences that follow.

Commercial Auto for Contractor Trucks and Vans

Your truck is a rolling job site. It carries tools, materials and crew, and it’s on LA freeways every day. Personal auto policies typically exclude or restrict vehicles used primarily for business, and a claim can be denied if the carrier finds the vehicle was being used for work.

California’s private passenger minimum liability rose to 30/60/15 in 2025, but that minimum is nowhere near what construction contracts require. Most GCs and commercial owners require $1 million combined single limit. If you tow heavy equipment, haul debris or run larger trucks, higher limits and extra filings may apply.

Things contractors should get right on their auto policy:

• Every vehicle titled to the business listed and correctly rated by weight and use.
• Hired and non-owned auto coverage for rentals and employees driving their own cars on errands.
• Trailers scheduled, and equipment on them covered separately (auto policies don’t cover the tools in the truck).
• A driver list with motor vehicle records checked. One bad driver can raise the premium for the whole fleet.

For more detail, see my page on commercial auto insurance.

Inland Marine: Tools and Equipment Coverage

Tool theft is a real problem in Los Angeles. Trucks get broken into overnight in residential neighborhoods and at job sites. Your GL doesn’t cover your own tools, and your auto policy doesn’t cover what’s inside the vehicle.

That’s what a contractor’s equipment or tool floater is for. It’s a type of inland marine coverage that follows your property wherever it goes: the truck, the job site, the shop.

What to ask about

• Scheduled vs. unscheduled: larger items like excavators, generators and lifts are usually listed individually. Hand tools can be covered on a blanket basis, often with a per-item maximum.
• Replacement cost vs. actual cash value: ACV pays for depreciated value, which can be a small fraction of what it costs to buy new.
• Theft conditions: some policies require visible signs of forced entry or exclude theft from an unattended vehicle overnight.
• Rented and leased equipment: if you rent a lift or a skid steer, the rental agreement usually makes you responsible for it. Rental equipment coverage can be added.
• Employee tools: often excluded unless specifically endorsed.

Builder’s Risk Insurance

Builder’s risk covers the structure itself while it’s being built or renovated. Fire, wind, theft of materials, vandalism and certain other causes of loss to the project are the typical covered perils.

Who buys it depends on the contract. On many commercial projects, the owner provides it. On residential remodels and new construction, the GC is often expected to carry it. Read the contract to see who’s responsible, and never assume the homeowner’s policy covers a major remodel. Many homeowners policies restrict coverage during construction or when the home is vacant.

Points to clarify:

• Whether coverage is for new construction, renovation, or both.
• Whether materials in transit and stored off-site are covered.
• Whether existing structures are included on renovation jobs.
• Theft and vandalism conditions, particularly on sites left unattended overnight.
• Exclusions for earthquake and flood, which are common and usually need separate coverage if required.

Umbrella and Excess Liability

An umbrella policy sits above your GL, commercial auto and employer’s liability and adds limits on top of them. For contractors it serves two purposes.

First, it protects against a claim that exceeds your primary limits. Serious injuries on construction sites, especially falls and auto accidents, can easily produce claims above $1 million.

Second, it satisfies contracts. Many GCs and owners require $2 million, $5 million or more in total liability limits. Buying that through an umbrella is almost always more cost-effective than raising primary limits.

Make sure the umbrella follows form on additional insured, primary non-contributory and waiver of subrogation. If it doesn’t, you may meet the limit requirement but still fail the contract.

Performance and Payment Bonds

Beyond the license bond, many contractors need contract bonds to bid and perform larger jobs.

Types of contract bonds

• Bid bond: guarantees that if you win the bid, you’ll sign the contract and provide the required performance and payment bonds.
• Performance bond: guarantees you’ll complete the project according to the contract. If you default, the surety steps in.
• Payment bond: guarantees you’ll pay your subs, laborers and suppliers. On public works, this protects parties who can’t file a mechanics lien against public property.
• Maintenance or warranty bond: guarantees repair of defects during a warranty period after completion.

Public works projects in California commonly require performance and payment bonds above certain contract values. Private owners and developers may also require them.

How bonding capacity works

A surety bond isn’t insurance for you. It’s closer to a line of credit. The surety evaluates your financial statements, work in progress, experience, personal credit and working capital before deciding how large a single job and total program it will support.

If you plan to grow into bonded work, start building the relationship with a surety before you need it. Clean financial statements, ideally prepared by a CPA who understands construction accounting, make a big difference. You can read more on my surety and fidelity bonds page.

Coverage by Contractor Type

Every contractor’s program should be built around the actual work and contracts. But certain patterns hold by trade. Here’s a starting point for construction business insurance California buyers, by contractor type.

Contractor type	Core coverage	Often needed	Key issues to watch
General contractor (Class B)	GL, workers’ comp, commercial auto, license bond	Umbrella, builder’s risk, contract bonds, contractor’s pollution	Subcontractor conditions, action-over exclusions, residential and condo exclusions, sub certificate tracking
Electrical (C-10)	GL, workers’ comp, commercial auto, license bond	Tools/equipment floater, umbrella	Fire claims from completed work, completed operations limits
Plumbing (C-36)	GL, workers’ comp, commercial auto, license bond	Tools/equipment floater, umbrella	Water damage claims, mold exclusions, completed operations
Roofing (C-39)	GL, workers’ comp (required regardless of employees), commercial auto, license bond	Umbrella, equipment floater	Limited carrier market, height restrictions, hot work exclusions, higher comp rates
HVAC (C-20)	GL, workers’ comp, commercial auto, license bond	Equipment floater, umbrella	Refrigerant and pollution exclusions, completed operations
Painting (C-33)	GL, workers’ comp, commercial auto, license bond	Equipment floater	Lead paint and pollution exclusions on older LA housing stock, overspray claims
Concrete (C-8)	GL, workers’ comp, commercial auto, license bond	Equipment floater, umbrella	Earth movement and subsidence exclusions, heavy equipment on the road
Landscaping (C-27)	GL, workers’ comp, commercial auto, license bond	Equipment floater for mowers and trailers	Herbicide/pesticide exclusions, tree work restrictions, trailer theft
Handyman / small remodeler	GL, license bond (if licensed), commercial auto	Workers’ comp as soon as there’s a helper, tools floater	Classification limits, residential exclusions, working outside the license scope

Landscapers have their own set of issues beyond this table. I cover them in my landscaping business insurance guide.

Other coverage contractors should consider

• Contractor’s pollution liability: GL policies usually exclude pollution. Mold, lead, asbestos disturbance, fuel spills and sewage backup can all fall into this gap.
• Professional liability: design-build contractors and those providing plans or engineering input may need errors and omissions coverage.
• Employment practices liability: for contractors with a larger workforce, wrongful termination, discrimination and wage-related claims are a real exposure in California.
• Cyber: contractors increasingly get targeted by payment-diversion email fraud, where a scammer impersonates a supplier or owner to redirect payments.

General Contractor Insurance in Los Angeles: Local Factors

If you’re shopping for general contractor insurance Los Angeles carriers will look at some local factors closely.

• Residential density and older housing: a lot of LA work is remodels of homes built decades ago, with lead paint, asbestos-containing materials and outdated wiring and plumbing.
• Hillside work: hillside and foundation work in areas prone to earth movement is often restricted or priced differently.
• Wildfire rebuilds: rebuilding work after fires in the LA area brings a lot of opportunity, but also contracts with strict insurance requirements and projects with their own builder’s risk challenges.
• ADUs: accessory dwelling units are new residential construction for many underwriters. If your policy restricts new residential work, ADUs may be affected.
• Traffic: commercial auto rates in LA County reflect the traffic density and claim environment.

None of this means you can’t get good coverage in LA. It means the application needs to describe your work accurately, and your broker needs to know which carriers actually want your class of business.

What Contractor Insurance Costs

I’m going to be honest about cost: there’s no reliable single number. Contractor insurance pricing varies widely by trade, payroll, revenue, subcontracted cost, location, the mix of residential and commercial work, claims history, years in business and the carrier.

Some general patterns:

• Workers’ comp is usually the largest line for contractors with employees. It’s priced per $100 of payroll by class code, and roofing, framing and other high-hazard trades have much higher rates than, for example, interior finish work. Once you’re eligible, your experience modification can move the premium significantly up or down.
• GL is typically rated on revenue or payroll by trade. Residential exposure, subcontracted work and past claims affect it heavily.
• Commercial auto depends on vehicle types, driver records, radius and garaging location.

A small, clean, interior-trade contractor might pay a few thousand dollars a year for GL. A roofer or GC with employees and residential exposure could pay many times that.

Ways contractors can control premium

• Report payroll by the correct class codes. Splitting payroll correctly between trades can make a big difference, but only when your records support it.
• Track sub certificates so the audit doesn’t reclassify your subs as your payroll.
• Keep a written safety program. Cal/OSHA requires an Injury and Illness Prevention Program, and carriers notice contractors who take it seriously.
• Report claims promptly and manage return-to-work for injured employees.
• Shop the market when it makes sense. Carriers’ appetites for contractor classes change often.

How I Work with Contractors

I’m a licensed California commercial insurance broker (CA DOI license #OK30674), a partner at Zolo Insurance Services, and I’ve been working in commercial insurance for more than 15 years. Construction is one of the industries I work with most.

Here’s what that looks like in practice:

• Contract reviews: I read the insurance section of your subcontract or construction agreement before you sign and tell you what your policy meets and what needs to change.
• Certificates that match the contract: AI, waiver and primary non-contributory endorsements set up correctly, so you’re not waiting on paperwork when a GC holds your payment.
• Shopping multiple carriers: I work with multiple carriers and shop the market, looking at exclusions and endorsements, not just price.
• Audit preparation: helping you organize payroll and sub certificates before the auditor calls.
• Bonds: license bonds, qualifying individual bonds, LLC bonds and contract bonds.

My office is in Tarzana, in the San Fernando Valley, and I work with contractors across Los Angeles and the rest of California, and I have clients in more than 27 other states. I serve clients in English, Hebrew and Spanish, which matters on a lot of construction crews.

Ready to have your contractor insurance reviewed? I’ll look at your current policies, your contracts and your CSLB requirements, and tell you plainly where you stand. Call (323) 999-6067 or contact me here for a free coverage review.

Frequently Asked Questions

Is general liability insurance required for a California contractor’s license?

For most sole proprietors and corporations, CSLB does not require GL to hold a license. LLC licensees are required to carry liability insurance. In practice, most GCs, commercial owners and property managers won’t hire you without it, and contractors doing residential work must disclose whether they carry it.

Can I get a workers’ comp exemption if I don’t have employees?

Historically, yes, by filing an exemption certificate with CSLB. Roofing contractors can’t use an exemption, and recent legislation has extended the requirement to more classifications. Check CSLB’s current rules for your license before relying on an exemption, and remember that hiring anyone ends it immediately.

How much is a California contractor license bond?

The contractor license bond is $25,000, effective January 1, 2023. The premium you pay depends largely on your credit and is usually a small percentage of the bond amount.

What happens if my subcontractor doesn’t have insurance?

You can be held responsible for their claims, and at audit time your carrier may charge you as if the sub’s payroll or costs were your own. Collect current certificates and endorsements before any sub starts work.

Does my general liability policy cover my tools?

No. GL covers your liability to others. Your own tools and equipment need a contractor’s equipment or tool floater, which is a type of inland marine coverage.

Who buys builder’s risk insurance, the owner or the contractor?

It depends on the contract. Owners often provide it on commercial projects, while GCs frequently carry it on residential remodels and new home construction. Read the contract and confirm in writing who is responsible.

What does “additional insured, primary and non-contributory” mean on a certificate?

It means the GC or owner is covered under your policy for claims arising from your work, and your policy pays first without asking their policy to share. Most commercial contracts require it, and it must be backed by actual endorsements on your policy.

Do I need a performance bond for private jobs?

Not always. Public works projects commonly require performance and payment bonds, and some private owners and developers do too. If you’re planning to bid bonded work, start building a relationship with a surety early.

Contractor insurance works when every piece fits: the license, the contract, the policy wording and the paperwork. If you want a second set of eyes on yours, I’m happy to help. Call me at (323) 999-6067 or request your free coverage review.