Contractor Surety Bonds: FAQs for California plumbers
The $25,000 contractor's bond, qualifying individual bonds, the $100,000 LLC bond, premiums, renewals, cancellations and claims.
How much does a $25,000 California contractor license bond cost?
Surety bonds
You pay a premium, which is a small fraction of the $25,000 bond amount, and the exact figure depends on the surety's underwriting of you: the owner's personal credit, the license history, any prior bond claims, and the term you buy. We don't publish a rate because it varies by applicant and by surety, and a number that is right for one plumber is wrong for the next.
What is fixed is the bond amount (penal sum): $25,000 is the most the surety will pay on claims against the bond, not what you pay for it. A quote states the premium before you commit, usually for a one- or multi-year term, and the bond is then filed with CSLB (the surety usually files it; CSLB must receive it within 90 days of the effective date).
If your credit is strong, expect a quick quote at the low end of the surety's range. If it is weaker, expect a higher premium rather than a decline in most cases, though approval is never guaranteed. Request a quote and the surety's price comes back with the application.
Sources: CSLB — Bond requirements · CSLB — Bond basics
Read more: California Plumbing Contractor Insurance Requirements: A C-36 License Guide
Related questions: Is the $25,000 bond amount the amount I actually pay? · What does a surety check when underwriting a contractor license bond? · Can I buy my California contractor license bond online?
Last reviewed October 23, 2026 · Link to this answer
Is the $25,000 bond amount the amount I actually pay?
Surety bonds
No. $25,000 is the penal sum: the maximum the surety company will pay to people with valid claims against your bond. The premium is what you pay for the surety to stand behind that promise, and it is a fraction of the penal sum, set by underwriting.
The two are easy to confuse because CSLB talks about the bond in terms of its amount. Think of it the way a lender thinks about a guarantee: the guarantee is for $25,000, the fee for providing it is much smaller. The same distinction applies to the $100,000 LLC employee/worker bond and the $25,000 bond of qualifying individual.
One more difference from insurance: if the surety does pay a claim, it will seek reimbursement from you under the indemnity agreement you sign when you buy the bond. The premium buys the guarantee, not forgiveness of the claim.
Sources: CSLB — Bond basics
Related questions: How much does a $25,000 California contractor license bond cost? · What is the difference between a surety bond and general liability insurance?
Last reviewed October 23, 2026 · Link to this answer
What is the difference between a surety bond and general liability insurance?
Surety bonds
Insurance protects you; a bond protects other people from you. A general liability policy pays, on your behalf, for covered damage you cause to others, and you do not repay the carrier. A contractor's license bond is a guarantee to CSLB and the public that you will comply with the license law; if the surety pays a valid claim because you did not, it will seek reimbursement from you.
They also answer different questions. CSLB requires the bond as a condition of holding the license, and anyone damaged by a license-law violation, a wilful breach of a construction contract, or unpaid wages can claim against it, up to $25,000 in total. General liability is required by the state only for LLC licensees and by contract for everyone else, and it responds to bodily injury and property damage from your operations and completed work, subject to the policy's terms and exclusions, with limits in the millions and the carrier's defense of lawsuits.
A plumbing company needs both. The bond keeps the license active; the policy keeps a flooded unit from becoming a personal debt.
Sources: CSLB — Bond basics
Read more: What Insurance Does a Plumbing Contractor Need in California? · Does General Liability Insurance Cover Water Damage Caused by a Plumber?
Related questions: Is the $25,000 bond amount the amount I actually pay? · Who can make a claim against my contractor bond?
Last reviewed October 23, 2026 · Link to this answer
Can I buy my California contractor license bond online?
Surety bonds
Yes. Contractor license bonds are routinely quoted and purchased online, and the surety then files the bond with CSLB, electronically for most sureties. Through Plumbers Pro, the bond is placed by Pembroke Insurance Solutions, a licensed agency, with a surety licensed by the California Department of Insurance.
Our online quote-and-purchase application through our surety partner is being activated. Until it is live, the bond request form goes to a licensed producer who sends the surety's short application and returns the quote, usually the same business day; payment is made securely with the surety, never on this website. When the embedded application is live, most contractor's bonds will quote instantly and the purchase completes on the page.
Whichever route you use, check CSLB's license record a week or two after purchase to confirm the bond was recorded. Purchased is not the same as filed.
Sources: CSLB — Bond requirements
Related questions: How much does a $25,000 California contractor license bond cost? · How is a contractor bond filed with CSLB, and how long do I have?
Last reviewed October 23, 2026 · Link to this answer
How is a contractor bond filed with CSLB, and how long do I have?
Surety bonds
The surety files the bond with CSLB in most cases; ask your bond agent to confirm that it will. CSLB must receive the bond within 90 days of its effective date. For a new license, the bond must be in place before CSLB issues the license; for a replacement bond after a cancellation, the bond's coverage must be continuous with the old one to avoid a break in licensing time.
Through Plumbers Pro, our surety partner files electronically for most carriers; one carrier still requires manual filing, and we tell you which applies before you buy. After filing, confirm on CSLB's public license record that the bond shows with the correct surety and effective date. If it has not appeared within two weeks, contact us with the surety's filing confirmation.
Sources: CSLB — Bond requirements · CSLB — Bond suspensions
Related questions: Can I buy my California contractor license bond online? · What happens if my contractor bond is cancelled?
Last reviewed October 23, 2026
What happens if my contractor bond is cancelled?
Surety bonds
CSLB cancels the bond 30 days after it receives the surety's cancellation notice. If no reinstatement or replacement bond is on file by the end of that period, the license is suspended, and any work performed while suspended is treated as unlicensed work: you can be barred from collecting for it and disciplined by CSLB.
To avoid the gap, get a replacement bond with an effective date no later than the cancellation date; CSLB must receive it within 90 days of its effective date, and coverage must be continuous to avoid a break in licensing time. If the surety rescinds its cancellation, CSLB needs the rescission notice within 90 days of the cancellation date. A bond filed late is accepted retroactively only for circumstances beyond your control, by written request (Form 13B-31).
Treat a cancellation notice as a same-day task. Use the bond request form and tell us the cancellation date; a producer prioritises replacements.
Sources: CSLB — Bond basics · CSLB — Bond suspensions
Read more: California Plumbing Contractor Insurance Requirements: A C-36 License Guide
Related questions: How is a contractor bond filed with CSLB, and how long do I have? · Why would a surety cancel my contractor bond? · What happens if my CSLB license is suspended, and how do I fix it?
Last reviewed October 23, 2026 · Link to this answer
Why would a surety cancel my contractor bond?
Surety bonds
The two reasons CSLB names are non-payment of the premium and the surety paying out part or all of the bond amount on a claim. Sureties can also non-renew at the end of a term, for example after a claim history or a change in ownership they have not underwritten.
A claim payment has a second effect: a judgment or claim paid against the bond reduces the bond amount on file (B&P §7071.11), which can itself suspend the license until the bond is restored to the full amount. If you are notified of a claim against your bond, respond to the surety immediately and involve your producer; resolving the underlying dispute before the surety pays is usually far cheaper than the cancellation, the reimbursement and the replacement bond that follow.
Sources: CSLB — Bond basics
Related questions: What happens if my contractor bond is cancelled? · Who can make a claim against my contractor bond?
Last reviewed October 23, 2026
Who can make a claim against my contractor bond?
Surety bonds
CSLB describes three groups: homeowners damaged by defective construction or a violation of the license law, anyone damaged by a wilful and deliberate violation of a construction contract, and employees damaged by the contractor's failure to pay wages. The bond is written for their benefit, not yours.
Claims are made to the surety, which investigates and pays valid claims up to the bond amount in total. The contractor then owes the surety what it paid. Because a payment reduces the bond on file and can suspend the license, the practical advice is to treat any written claim as urgent, keep complete job files (contract, change orders, photos, payments) so you can respond with evidence, and loop in your producer early.
Sources: CSLB — Bond basics · CSLB — Bond requirements
Related questions: Why would a surety cancel my contractor bond? · What is the difference between a surety bond and general liability insurance?
Last reviewed October 23, 2026
What does a surety check when underwriting a contractor license bond?
Surety bonds
For a license bond, most sureties underwrite on the owners' personal credit, the license history (status, prior suspensions, complaints) and any prior bond claims, plus the business's time in operation. Financial statements are rarely requested for a $25,000 or $100,000 license bond; they are standard for larger contract bonds.
Strong credit usually means an instant or same-day quote at the low end of the surety's range. Weaker credit, a prior bankruptcy or a past bond claim usually means a higher premium rather than a decline, and some sureties specialise in that segment. A surety may also ask the owners to sign a personal indemnity agreement, which is standard across the industry. Approval is never guaranteed, and the quote is always stated before you commit.
Related questions: How much does a $25,000 California contractor license bond cost? · Can I buy my California contractor license bond online?
Last reviewed October 23, 2026
Can I pay CSLB a cash deposit instead of buying a bond?
Surety bonds
Yes. CSLB accepts a cashier's check in the full bond amount filed with the State of California in lieu of a surety bond. A consumer with a claim against the deposit must file a civil action, and CSLB pays out only under a court order.
Few contractors choose this. The deposit ties up $25,000 (or $125,000 for an LLC with both bonds) for as long as the license is active, while a bond's premium is a fraction of that. The deposit makes sense mainly when a surety will not write the bond at any price, which is uncommon for license bonds.
Sources: CSLB — Bond basics · CSLB — Bond requirements
Related questions: How much does a $25,000 California contractor license bond cost?
Last reviewed October 23, 2026
Does a sole proprietor plumber need the same bonds as a corporation or LLC?
Surety bonds
All entity types need the $25,000 contractor's bond. The differences are in the add-ons. A sole proprietor who qualifies the license personally needs nothing else. A corporation needs a $25,000 bond of qualifying individual if it is qualified by an RME, or by an RMO who owns less than 10 percent of the voting stock. An LLC needs the $100,000 employee/worker bond regardless, plus a bond of qualifying individual under the same RME/RMO rules, plus general liability insurance of at least $1,000,000.
Changing entity type (for example, incorporating or converting to an LLC) means a new or reissued license and new bonds in the new entity's name; the old bonds do not transfer. Plan the bonds and, for an LLC, the liability policy before the effective date so the license is never without them.
Sources: CSLB — Bond requirements · CSLB — LLC licensing requirements
Read more: California Plumbing Contractor Insurance Requirements: A C-36 License Guide
Related questions: Does a California plumbing LLC need a $100,000 bond? · When is a bond of qualifying individual required?
Last reviewed October 23, 2026
General information, not legal advice. Coverage depends on the actual policy terms, exclusions, endorsements, underwriting and applicable law. Insurance is offered through Pembroke Insurance Solutions, a licensed insurance agency.