CA plumbing contractor license cost

Direct answer (48 words): The plumbing contractor license cost in California typically starts at $650 for a sole owner ($450 application + $200 initial license) or $800 for non‑sole owners ($450 + $350), plus a $25,000 contractor bond (premium varies), $49+ Live Scan fingerprints, and ongoing renewal fees of $450–$700 every two years.

Requirements last verified: 2026-11-05

Requirement	Details
Licensing agency	California Contractors State License Board (CSLB) — C‑36 Plumbing contractor classification. See classification detail.
Application fee	$450, non‑refundable, paid with the Application for Original Contractor License (Form 13A‑1). Total due to obtain license number after approval: $650 (sole owner) or $800 (non‑sole owner) including the initial license fee. ([cslb.ca.gov](https://cslb.ca.gov/OnlineServices/WebApplication/InteractivePDFs/ApplicationForOriginalContractorsLicense.aspx?utm_source=openai))
Initial license fee	$200 (sole owner) or $350 (non‑sole owner), billed after exams and issuance requirements are met. Included in above totals. ([cslb.ca.gov](https://cslb.ca.gov/OnlineServices/WebApplication/InteractivePDFs/ApplicationForOriginalContractorsLicense.aspx?utm_source=openai))
Exams	Two exams: Law & Business and C‑36 trade. Study guides: Law & Business + list, C‑36 Plumbing Study Guide. Exam reschedule fee set by regulation at $60. ([cslb.ca.gov](https://cslb.ca.gov/contractors/applicants/examination_study_guides/?utm_source=openai))
Experience	4 years journeyman/supervisory/contractor experience in the last 10 years, documented on the Certification of Work Experience. Education/apprenticeship may count toward up to 3 years. ([cslb.ca.gov](https://cslb.ca.gov/onlineservices/webapplication/interactivepdfs/certificationofworkexperience.aspx?utm_source=openai))
Minimum age	18 years old. ([cslb.ca.gov](https://www.cslb.ca.gov/contractors/applicants/contractors_license/exam_application/before_applying_for_license.aspx?utm_source=openai))
Fingerprint/background	Live Scan required for each listed individual: $49 processing ($32 DOJ + $17 FBI) plus rolling fee set by the Live Scan site. Fingerprinting info. ([web.cslb.ca.gov](https://web.cslb.ca.gov/Contractors/Applicants/Contractors_License/Exam_Application/Get_Fingerprinted_-_Live_Scan.aspx?utm_source=openai))
Bond	Contractor’s Bond: $25,000 (premium varies by credit). Some qualifiers (RME) need an additional $25,000 Bond of Qualifying Individual. Bond requirements. ([cslb.ca.gov](https://www.cslb.ca.gov/contractors/maintain_license/bond_information/Bond_Requirements.aspx?utm_source=openai))
Insurance	Workers’ compensation required if you have employees (no exemption if qualified by an RME). LLCs also must carry liability insurance: $1,000,000 for ≤5 personnel, +$100,000 per additional personnel up to $5,000,000. Workers’ comp; LLC insurance rule. ([cslb.ca.gov](https://www.cslb.ca.gov/contractors/maintain_license/workers_compensation.aspx?utm_source=openai))
LLC additional bond	Employee/Worker Bond for LLCs: $100,000. Form 13A‑1 notes. ([cslb.ca.gov](https://cslb.ca.gov/OnlineServices/WebApplication/InteractivePDFs/ApplicationForOriginalContractorsLicense.aspx?utm_source=openai))
Renewal	Every 2 years. Fees: $450 (sole owner, active) or $700 (non‑sole owner, active); higher if delinquent. Renewal cycle and current renewal fees. ([cslb.ca.gov](https://www.cslb.ca.gov/contractors/maintain_license/renew_license/general_renewal_information.aspx?utm_source=openai))
License term on issuance	Initial license issued for 2 years from the last day of the month issued. Issuance details. ([cslb.ca.gov](https://www.cslb.ca.gov/Contractors/Applicants/Contractors_License/Exam_Application/Issuing_My_License.aspx?utm_source=openai))
Processing times	CSLB posts current dates worked; updated weekly (e.g., as of Nov 2, 2026). See Processing Times. ([cslb.ca.gov](https://www.cslb.ca.gov/OnlineServices/ProcessingTimes/ProcessingTimes.aspx?utm_source=openai))

How to get a California plumbing contractor license (C‑36)

1. Confirm you qualify. You must be 18+ and document four years of C‑36 experience within the last 10 years at journeyman/supervisory/contractor level using CSLB’s Certification of Work Experience. ([cslb.ca.gov](https://www.cslb.ca.gov/contractors/applicants/contractors_license/exam_application/before_applying_for_license.aspx?utm_source=openai))
2. Apply with CSLB (Form 13A‑1) and pay $450. Submit the Application for Original Contractor License. After acceptance, CSLB will send exam scheduling and fingerprint instructions. ([cslb.ca.gov](https://cslb.ca.gov/OnlineServices/WebApplication/InteractivePDFs/ApplicationForOriginalContractorsLicense.aspx?utm_source=openai))
3. Pass both exams. Schedule and pass the Law & Business and C‑36 trade exams; use CSLB’s official study guides. Reschedules carry a $60 fee by regulation. ([cslb.ca.gov](https://cslb.ca.gov/contractors/applicants/examination_study_guides/?utm_source=openai))
4. Complete fingerprinting. Do Live Scan and pay $49 ($32 DOJ + $17 FBI) plus the site’s rolling fee; submit your copy back to CSLB within 90 days. ([web.cslb.ca.gov](https://web.cslb.ca.gov/Contractors/Applicants/Contractors_License/Exam_Application/Get_Fingerprinted_-_Live_Scan.aspx?utm_source=openai))
5. Meet issuance items and pay initial fee. File the $25,000 contractor’s bond (and, if applicable, $25,000 qualifying‑individual bond), workers’ comp proof or exemption, and pay the initial license fee: $200 (sole owner) or $350 (non‑sole owner). ([cslb.ca.gov](https://www.cslb.ca.gov/contractors/maintain_license/bond_information/Bond_Requirements.aspx?utm_source=openai))
6. For LLCs only. Provide $100,000 LLC employee/worker bond and required liability insurance ($1,000,000–$5,000,000 depending on personnel count). ([www2.cslb.ca.gov](https://www2.cslb.ca.gov/Resources/FormsAndApplications/ApplicationForOriginalContractorsLicense.pdf?utm_source=openai))
7. Receive your license. CSLB issues for two years from month‑end; track timing on CSLB’s Processing Times page. ([cslb.ca.gov](https://www.cslb.ca.gov/Contractors/Applicants/Contractors_License/Exam_Application/Issuing_My_License.aspx?utm_source=openai))

Plumbing contractor license cost in California: itemized budget

Here’s how most applicants should budget the C‑36 license:

• CSLB application: $450. Form 13A‑1. ([cslb.ca.gov](https://cslb.ca.gov/OnlineServices/WebApplication/InteractivePDFs/ApplicationForOriginalContractorsLicense.aspx?utm_source=openai))
• Exams: included with application; exam reschedule is $60 by regulation. ([cslb.ca.gov](https://cslb.ca.gov/Resources/LawsAndRegulations/2024/CCR811%20Sec100%20FinalLanguage%206_10_2024%20with%20OAL%20edits.pdf?utm_source=openai))
• Initial license fee: $200 (sole owner) or $350 (non‑sole owner). ([cslb.ca.gov](https://cslb.ca.gov/OnlineServices/WebApplication/InteractivePDFs/ApplicationForOriginalContractorsLicense.aspx?utm_source=openai))
• Fingerprints: $49 (DOJ + FBI) + rolling fee (varies by site). CSLB fingerprinting. ([web.cslb.ca.gov](https://web.cslb.ca.gov/Contractors/Applicants/Contractors_License/Exam_Application/Get_Fingerprinted_-_Live_Scan.aspx?utm_source=openai))
• Contractor bond: $25,000 face amount; annual premium varies by credit and surety. Bond rules. ([cslb.ca.gov](https://www.cslb.ca.gov/contractors/maintain_license/bond_information/Bond_Requirements.aspx?utm_source=openai))
• Workers’ comp: required if you have employees (no exemption with an RME). Workers’ comp requirements. ([cslb.ca.gov](https://www.cslb.ca.gov/contractors/maintain_license/workers_compensation.aspx?utm_source=openai))
• LLCs only: $100,000 employee/worker bond and $1M–$5M liability insurance, scaled by personnel. LLC insurance/bond. ([www2.cslb.ca.gov](https://www2.cslb.ca.gov/Resources/FormsAndApplications/ApplicationForOriginalContractorsLicense.pdf?utm_source=openai))
• Renewal (every 2 years): $450 (sole owner, active) or $700 (non‑sole owner, active). Renewal fees. ([cslb.ca.gov](https://www.cslb.ca.gov/OnlineServices/OnlinePayments/?utm_source=openai))

Do plumbers in California need a contractor’s license?

Yes—plumbing work over $500 in labor and materials requires a contractor license. Most plumbing businesses hold the C‑36 classification. If you’re also exploring multi‑trade work, see our overview of the California trades contractor license structure to understand classifications that often pair with C‑36.

Renewal costs and cycle for a California C‑36

CSLB licenses are issued for two years and renew every two years when active. Expect $450 (sole owner) or $700 (non‑sole owner) each cycle; delinquent renewals cost more. Plan early so your bond and workers’ comp proof remain on file. ([cslb.ca.gov](https://www.cslb.ca.gov/Contractors/Applicants/Contractors_License/Exam_Application/Issuing_My_License.aspx?utm_source=openai))

Other cost variables for a plumbing contractor license

• Bond premiums depend on credit, claim history, and surety underwriting (face amount fixed at $25,000). ([cslb.ca.gov](https://www.cslb.ca.gov/contractors/maintain_license/bond_information/Bond_Requirements.aspx?utm_source=openai))
• Live Scan rolling fees vary by location and are set by the provider, not CSLB. ([cslb.ca.gov](https://cslb.ca.gov/About_Us/FAQs/Fingerprint_Q_And_A.aspx?utm_source=openai))
• LLC liability limits increase $100,000 per additional personnel beyond five, to a $5,000,000 cap. ([www2.cslb.ca.gov](https://www2.cslb.ca.gov/Resources/FormsAndApplications/ApplicationForOriginalContractorsLicense.pdf?utm_source=openai))

Budgeting across trades? Compare our breakdown of HVAC license costs in California to see how C‑36 costs stack up to C‑20 HVAC requirements.

Frequently Asked Questions

What is the absolute minimum I’ll pay to get a C‑36 license number?

For a sole owner, plan on $650 to CSLB ($450 application + $200 initial license), plus at least $49 for DOJ/FBI fingerprints and the contractor bond premium (face amount $25,000). Non‑sole owners pay $800 to CSLB ($450 + $350) before bond and fingerprint costs. ([cslb.ca.gov](https://cslb.ca.gov/OnlineServices/WebApplication/InteractivePDFs/ApplicationForOriginalContractorsLicense.aspx?utm_source=openai))

Is there a separate exam fee?

The $450 application covers exam eligibility; however, rescheduling is $60 by regulation, and administration is handled through PSI per CSLB instructions. ([cslb.ca.gov](https://cslb.ca.gov/Resources/LawsAndRegulations/2024/CCR811%20Sec100%20FinalLanguage%206_10_2024%20with%20OAL%20edits.pdf?utm_source=openai))

How much is the California contractor bond for plumbers?

The contractor’s bond amount is $25,000. Some qualifiers (e.g., RMEs) also need a $25,000 Bond of Qualifying Individual. Premiums vary by surety and applicant profile. ([cslb.ca.gov](https://www.cslb.ca.gov/contractors/maintain_license/bond_information/Bond_Requirements.aspx?utm_source=openai))

Do I need workers’ compensation insurance?

Yes, if you have any employees. Sole owners with no employees may file an exemption, except where workers’ comp is always required (certain classifications) or when the qualifier is an RME. ([cslb.ca.gov](https://www.cslb.ca.gov/contractors/maintain_license/workers_compensation.aspx?utm_source=openai))

How long does the CSLB licensing process take?

Timelines vary. CSLB updates its Processing Times weekly; you can see the current “date being worked” for original exam applications, bonds, and issuance tasks. ([cslb.ca.gov](https://www.cslb.ca.gov/OnlineServices/ProcessingTimes/ProcessingTimes.aspx?utm_source=openai))

Ready to price your C‑36 path and keep costs controlled? License Navigator can guide you step‑by‑step—from forms to bonds—so you get licensed on time and on budget.