California Plumbing License: Everything You Need to Know

California’s extensive population and diverse infrastructure create unique plumbing demands. Whether you’re fixing residential leaks or installing complex commercial systems, a California plumbing license ensures you’re qualified to handle these challenges. This guide will cover everything you need to know about obtaining a plumbing license in California, including salary details, education pathways, and license renewal requirements.

What plumbing work can be done without a license?

In California, any plumbing project exceeding $500 requires a state-issued license. Without it, plumbers can only perform minor repairs or assist licensed plumbers under supervision.

What are the different types of plumbing licenses available in California?

California offers several plumbing career paths, each with specific requirements:

1. Apprentice License
   • For those starting their careers with supervised training.
2. Journeyman License
   • Allows independent plumbing work and supervision of apprentices.
3. Contractor’s License (C-36 Classification)
   • Permits bidding on projects over $500 and managing a plumbing business.

Average hourly rates for plumbers in California

In California, plumbers earn competitive wages that generally surpass national averages, a reflection of the state’s high cost of living and the unique demands of its varied infrastructure. Here’s a breakdown of average hourly rates in California compared to national rates:

• Apprentice Plumber: $15.50 per hour
  (National Average: $15.31 per hour)
  Apprentice plumbers in California earn just above the national average. This slight difference reflects the state’s effort to maintain fair wages for entry-level workers, despite California’s higher living costs.
• Journeyman Plumber: $26.00 per hour
  (National Average: $25.37 per hour)
  Journeyman plumbers in California earn roughly 2.5% more than the national average, accounting for the additional skill and experience required to work independently across California’s diverse urban and rural environments.
• Master Plumber: $33.00 per hour
  (National Average: $30.46 per hour)
  Master plumbers in California earn about 8% more than the national average. This pay increase recognizes the advanced expertise needed to manage complex plumbing systems and projects throughout the state.

California plumbers, from apprentices to masters, generally earn slightly above national averages. This competitive pay helps offset the high cost of living in the state and attracts skilled labor to meet the demands of California’s expansive residential and commercial plumbing needs.

How to get a plumbing license in California

Follow these steps to become a licensed plumber:

Apprentice License

1. Enroll in an Approved Apprenticeship Program
   Most apprenticeship programs last between 2 to 4 years and combine classroom education with hands-on, on-the-job training. You’ll learn essential skills, including how to repair leaky pipes, install boilers and hot water tanks, and read blueprints.
2. Register as an Apprentice with the State
   After enrolling in an approved apprenticeship program, register as an apprentice with the California State Board.
3. Training Requirements
   Expect to work five to six days a week alongside professional plumbers, gaining practical experience and applying your classroom knowledge.

Journeyman License

1. Complete an Approved Apprenticeship Program or Gain Equivalent Experience
   To qualify for a journeyman license, you must complete an approved apprenticeship program or accumulate equivalent experience.
2. Pass the Journeyman Plumber Exam
   Once you’ve fulfilled the apprenticeship or experience requirements, pass the journeyman plumber exam to demonstrate your knowledge and skills.
3. Submit Application and Pay the Required Fee
   Submit the journeyman license application and any supporting documents. Be prepared to pay the application fee.

Contractor’s License (C-36 Classification)

1. Work as a Journeyman for at Least Four Years
   After four years as a registered journeyman, you can apply for a contractor’s license. This license allows you to take on plumbing projects over $500 and manage your own plumbing business.
2. Complete a Criminal Background Check
   California requires all applicants for a contractor’s license to undergo a criminal background check. Generally, a criminal background won’t disqualify you unless there is a serious offense within the last seven years related to the trade.
3. Apply for the Contractor’s License Through the California Contractors State License Board (CSLB)
   Submit your contractor’s license application along with documentation that verifies your work experience, such as W-2 forms, apprenticeship program certifications, and a diploma from your plumbing school.
4. Pass Law, Business, and Trade-Specific Exams
   Schedule and pass exams covering business, law, and trade-specific plumbing knowledge. The CSLB requires all applicants to complete these exams to ensure competency in managing plumbing projects and business operations.
5. Submit Proof of Working Capital and File a Surety Bond
   You must demonstrate that you have at least $2,500 in working capital. Additionally, California requires a surety bond of $10,000. With good credit, this bond typically costs between $100 and $250 annually.

Final CSLB Review
After completing all exams and documentation, you’ll undergo a final review with a CSLB proctor before receiving your license.

Top Schools for Plumbing Education in California

California has a range of reputable plumbing schools to help you gain the necessary skills and experience. Programs typically last two years and cost between $1,000 and $3,000. Financial aid options are often available, and many schools provide job placement support. Some top schools include::

• Bakersfield College
• Central County Occupational College
• Central County ROP
• City College of San Francisco
• College of San Mateo
• East Los Angeles Occupational Center
• Harbor Occupational Center
• Institute for Business & Technology
• LA Trade & Technical College
• Modesto Junior College
• National Institute of Technology
• North Orange County ROP
• PHCC Vocational School
• San Diego City College

Students learn basic plumbing operations, from repairing pipes to installing furnaces, water tanks, and sprinkler systems. Additionally, courses cover blueprint reading and selecting the appropriate tools for various repairs. A high school diploma or GED is typically required for enrollment, and some courses are available online.

Completing one of these programs positions students to secure apprenticeships and succeed in California’s plumbing industry.

Should I join a union?

Union membership can provide additional benefits, such as higher pay, job security, and access to exclusive apprenticeship programs.

Top unions in California include:

• UA Local 342: Offers extensive training and job placement opportunities.
• UA Local 398: Provides resources for career growth and specialized training.

Insurance for plumbers in California

Public liability insurance is mandatory for licensed plumbers in California. This protects against property damage and personal injury claims.

Minimum Coverage Requirements:

• General liability coverage: $500,000–$1,000,000 annually

How to get my first plumbing apprenticeship

Follow these tips to secure an apprenticeship:

1. Use Trade School Resources: Most schools have partnerships with local businesses.
2. Prepare for Interviews: Dress professionally and bring copies of your resume and transcripts.
3. Apply Early: Apprenticeship spots are competitive and limited.

Does my license work in any other state?

No, a California plumbing license is only valid within the state. If you plan to work elsewhere, check reciprocity agreements or apply for a new license in that state.

How do I stay up to date with plumbing codes?

Staying informed about California’s plumbing regulations is essential. Use these resources:

• California Contractors State License Board (CSLB): Regularly updates plumbing code requirements.
• California Department of Industrial Relations: Provides additional compliance resources.
• Local Unions: Host training sessions and meetings to keep members informed.

What resources are available in the plumbing industry?

Expand your knowledge and skills with these resources:

• Plumbing Trade Shows: Network with professionals and discover new technologies.
• Plumbing Blogs: Stay informed about industry trends.
• Specialized Certifications: Boost your credentials in areas like eco-friendly plumbing.

I already have a license but:

If you already hold a plumbing license in California, you may need to update your information periodically.

• Address or Name Changes: Log in to your account on the California Contractors State License Board (CSLB) website to submit updates.
• Updating Contact Information: Ensure your email and phone number are current to receive notifications about renewals or compliance changes.
• Reissuing a License: If you need a replacement due to loss or damage, request a duplicate license through the CSLB portal.

Keeping your information updated ensures you remain compliant with state regulations and receive timely updates about your license.

How often do I need to renew my plumbing license in California?

Plumbing licenses must be renewed every two years.

Renewal Requirements:

• Pay the renewal fee ($400).
• Submit any required documentation through the CSLB website.