California C-36 Plumbing Contractor

Pass Your C-36 Exam On Your First Try

61 expert lessons, 1,100+ practice questions, AI tutor, audio content, and full-length exams. Everything you need in one platform.

1,100+ Practice Questions
95% Pass Rate
No Credit Card

Start free. No credit card required. 2 complete modules included.

95%

Pass Rate

10k+

Students

1.1k+

Questions

4.9★

Rating

Everything You Need to Pass

A complete study platform built specifically for the C-36 exam. Master the material, pass with confidence.

61 Expert Lessons

Comprehensive coverage of all exam topics from underground plumbing to California codes.

Audio Lessons

Listen and learn anywhere. 18+ hours of professionally narrated content.

AI Tutor (24/7)

Ask unlimited questions. Get personalized explanations instantly, anytime.

Full Practice Exams

Timed, full-length exams matching the real CSLB test format exactly.

Spaced Repetition

Smart review system resurfaces weak areas at the perfect timing to lock in knowledge.

Progress Dashboard

Track your performance, see your pass probability, and know exactly when you're ready.

How It Works

Three simple steps to exam success.

1

Sign Up Free

Create your account in seconds. No credit card. Get instant access to 2 free modules.

2

Study Smart

Learn with AI-powered lessons, quizzes, practice exams, and personalized guidance.

3

Pass with Confidence

Score high on practice exams, then ace the real test. You're ready.

What's on the C-36 Exam?

Two sections. We cover everything.

Trade Exam (60%)

Technical knowledge

  • Planning & Estimating
  • Underground & Rough Plumbing
  • Finish Plumbing & Fixtures
  • Water Heaters & Specialty Systems
  • Plumbing Codes & Standards
  • Safety & Sanitation
  • Tools, Materials & Equipment

Law & Business (40%)

Legal & business knowledge

  • California Contractor License Law
  • Business & Project Management
  • Estimating & Bidding
  • Safety Regulations (Cal/OSHA)
  • Insurance & Bonding Requirements
  • Legal Contracts & Obligations
  • Lien Laws & Documentation

Simple Pricing

Start free. Upgrade only if you need it.

Free Tier

Try it first, no card needed

  • 2 complete modules free
  • 5 AI tutor messages
  • Basic practice quizzes
  • Mobile access
  • No time limit
Most Popular

Pro Membership

Everything unlocked

$29/month annual

Or $49/month, cancel anytime

  • All 12 modules unlocked
  • 1,100+ practice questions
  • Full-length practice exams
  • AI tutor (unlimited)
  • Audio lessons (18+ hours)
  • Spaced repetition system
  • Progress analytics
  • Offline study mode

30-day money-back guarantee. No questions asked.

Common Questions

Everything you need to know.

What is the C-36 Plumbing Contractor License?
The C-36 is a California specialty contractor license from the CSLB that allows you to legally perform plumbing work. It opens doors to business ownership, higher earnings ($70K-$120K+), and career stability.
How long does it take to prepare?
Most students study 1-2 hours daily for 2-4 weeks before the exam. Our platform has ~18 hours of lessons plus practice, so you'll be ready in whatever timeframe works for you.
Is there really a free trial?
Yes. Sign up with no credit card and get instant access to 2 complete modules, 5 AI tutor messages, and all basic features. Try before you commit.
Can I study on my phone?
Absolutely. CA Plumbing Prep works on all devices—phone, tablet, desktop. Learn anywhere: at home, on the job site, during commutes.
What if I don't pass?
We offer a 30-day money-back guarantee on Pro. If you don't pass, you get your money back. We're confident in our platform.
How is this different from other prep courses?
We use AI-powered tutoring, adaptive weak-area drills, spaced repetition, full exam simulations, and personalized study plans. Most competitors just offer static question banks.
Exclusive to Our StudentsLimited Time

After You Pass — We Help You Launch

Getting your C-36 license is just the beginning. Because you're one of our students, we want to help you start strong — with a professional website for your new plumbing business, built and maintained by us.

Your Business Website — On Us to Build

Student-exclusive pricing — this offer is only available to CA Plumbing Prep members.

$50/month$3,000+ one-time

Custom-designed business website built for you

Ongoing updates, maintenance, and hosting included

No setup fees, no contracts — cancel anytime

Email mit@mitryxa.com to Get StartedSee a Demo Site

A MITRYXA.COM service for CA Plumbing Prep graduates

Win $1,000 in Google Ads

Every website subscriber is automatically entered in our quarterly raffle. The winner gets $1,000 in Google Ads — and we set up and run the campaign for you until the budget is used.

What you get if you win:

  • $1,000 Google Ads budget
  • Full campaign setup by our team
  • We manage and run it until the budget is spent
  • You choose to continue or stop — no pressure

Limited time — get your license and start today

Your C-36 License Is Closer Than You Think

Thousands of plumbing contractors passed with CA Plumbing Prep. You're next.

Already Have an Account?

No credit card required. 2 free modules. Start now.