How to get a plumbing contractor license in California
California plumbing contractor licensing covers hours, prerequisites, exam path, fees, and renewal. Confirm current rules on the board source before you apply.
Verified on: 2026-09-14 · Board source
From the board
- FOR EXAMINATIONS SCHEDULED ON OR AFTER MARCH 1, 2025 ## CONTRACTORS STATE LICENSE BOARD LICENSE EXAMINATION STUDY GUIDE ## PLUMBING (C-36) Content of the Examination The Plumbing (C-36) Examination is divided into five major sections: 1.
- Planning and Estimating (22%) • Scope of work and code compliance • Pipe sizing and venting requirements • Shop drawings, plans, and specifications • Job site inspections • Coordination of projects • Water conservation • Cost estimation for materials,
- Board page: CONTRACTORS STATE LICENSE BOARD LICENSE EXAMINATION STUDY GUIDE
Requirements overview
- California sets experience, education, and exam rules for plumbing contractor applicants
- Documented OJT or apprenticeship hours are common for journeyman / technician paths
- Master and contractor tracks usually add experience, exams, and firm paperwork
- Confirm current hour totals, affidavits, and fees on the state board before you apply
Exam
- See the California plumbing exam guide for vendor, scheduling, and prep
- LicenseFlo helps with paperwork and reminders — we do not sit the exam
Renewals
- Most credentials renew on a fixed cycle with mandatory CE or training
- Roster watch → intake → assemble → sign → submit
Related: Exam · Renewal and CE
Have LicenseFlo do it
From $79 per event. Text once; we collect photos, assemble the packet, and send a one-tap signature.