How to Become a Licensed Plumber

Are you interested in becoming a licensed plumber in the state of California? Do you know what the requirements are? If this is a career path you’re serious about pursuing, read on to learn more.

What is a Licensed Plumber?

Plumbers are professional trades-persons who deal with the installation and repair of pipes and fittings. In particular, pipes and fittings which carry water or gas, as well as for heating and sanitation systems. Plumbers carry out their work in homes, offices, and factories.

Licensing is a very important aspect of becoming a plumber. This is because once a plumber is licensed they are certified as having the requisite knowledge, expertise, and experience to carry out their work according to recognized plumbing standards.

Licensed plumbers are awarded a compliance certificate which can be shown to their employers. This certificate testifies that a plumber is meeting all relevant plumbing codes, standards, and regulations on the job. They also have insurance which is intended to help their customers in the event that the plumbing work was faulty.

Plumbers that are not licensed may be penalized for carrying out plumbing work without a license.

Interested in Becoming a Plumber? Here’s What You Have to Do

Because plumbing is a trade profession, individuals who wish to become plumbers must meet certain requirements.


Plumbing technology programs are designed to teach students about the fundamentals of plumbing. These courses are typically offered at community colleges or vocational schools and last for two years.

Some of the courses that are offered in these programs include:

  • Welding
  • Plumbing tools
  • Pipe system design
  • The safe use of equipment and tools


Alternatively, candidates may also enroll in a plumbing apprenticeship. Apprenticeships are offered by plumbing unions and business and can last anywhere from 2 to 3 years. These programs include both practical experience components, which are often paid training opportunities with licensed plumbers, and formal classes.

For candidates looking to join an apprenticeship, the following requirements apply:

  • Must be at least 18 years of age
  • Must hold a high school diploma or GED
  • Must have knowledge of how to use computers
  • Must pass a substance abuse test
  • Must know basic math

The California Plumbing License Exam

In order to sit for a plumbing exam, prospective plumbers must have met certain education and experience requirements.

The California Plumbing License Exam is needed in order to work as a licensed contractor in California. Any individual who intends to work as a plumbing contractor that is responsible for constructing, altering, or repairing a building or structure needs to be licensed. This is especially so if the total cost of the job is or exceeds $500.

The California Contractors State Licensing Board (CSLB) is the authority that regulates plumbing contractors.

How do you get a license?

In order to get a plumbing license, candidates must appear for two exams. The first exam relates to trade knowledge in the field of plumbing. The second one covers aspects of law and business related to plumbing. Some study material can be helpful like C36 License Study Guide for exam preparation.

How do you qualify for the exam?

To qualify for the plumbing license exam in California candidates must:

  • Have a minimum of 4 years worth of experience as either a foreman, supervisor, or journeyman
  • At least 1 year worth of practical experience
  • Must be at least 18 years old
  • Submit a full set of fingerprints
  • Undergo a thorough criminal background check

License Renewal

The California Contractors State Licensing Board (CSLB) requires licensed plumbers to renew their license every two years.

You will not be expected to satisfy any additional education requirements at the time of renewal.

Exam Format

The California Plumbing Exam has five major sections. These are:

  • Planning and Estimating
  • Rough-in Plumbing Systems
  • Finish Plumbing Installations
  • Service, Repair, and Remodel Plumbing Systems
  • Worker and Job Site Safety

After reviewing all of this information, you can decide whether or not you want to give the exam. The California Contractors State Licensing Board (CSLB) offers up to date information about the license application process as well as useful study materials that can help you pass the exam. If becoming a plumber is something you really want to do, you’ll need to go through the process of licensure in California.

How to Become a Concrete Contractor

How to become a concrete contractor, before you enter the concrete business, bear in mind that the competition is stiff, therefore be ready to work really hard to make it big. Once you are mentally ready for this intensive business, you can initially penetrate the market working on small residential projects and even multi-level commercial jobs. Your first year of operation would be the hardest, but by producing work to the customers’ satisfaction, you can ensure the success of your concrete company.

How to Become a Concrete Contractor in California?

There are certain things you will need to take care of to enter into this business. Have a look:

Education Requirements:

To become a concrete contractor, you will need at least a bachelor’s degree or equivalent in civil engineering or a related field. After that, you will need to obtain a license, which is a requirement in every state.


No matter how learned you are on the topic in terms of theory, you will still need to gather a sufficient amount of experience. The industry you are dealing with is vast, and will require an understanding of a lot of difficult concepts and procedures. For this purpose, you are advised to get firsthand experience, both on the field and in terms of office work. This will allow you to work directly with materials, suppliers, homeowners and contractors.

Target Market:

You’ll need to know your target market. You may want to focus on commercial projects such as offices, schools and public works, or you can go for residential work that would involve pouring walkways and patios in people’s yards, etc. Concrete companies that work on both residential and commercial projects are very few, since the tools, skills and expertise required for both vary a great deal. Decide at the start which sector you want to work in.

Business Plan:

You need to have a business plan in place before anything. You will need to know the direction of your business, your goals, and strategies and so on. Even if you can finance the business on your own, having a proper plan will help you remain focused on the important matters at hand. Within this document, add your target market segments, your company’s mission and philosophy and your projected financial data. You can revise the plan semi-annually to keep it updated.

Purchase/Lease Equipment:

This would be particularly important if you are planning to work in the commercial field. For work in this area, you will need to get your hands on heavy duty mixers, vehicles and other required professional quality tools.

Legal Aspects:

This is one of the first things you should take care of when you plan on starting a business. Get in touch with a lawyer and discuss your options. You can consider forming an LLC or a corporation in order to make sure your personal assets are protected. You will also need to obtain liability, company auto insurance and worker’s compensation insurance.


As soon as you initiate the planning phase of your concrete business, you will need to start looking for trustworthy suppliers. It is common for certified concrete contractors to arrange for a supplier who provides them with pre-mixed concrete. There are a lot of concerns you will need to keep in mind in terms of the supply chain, including scheduling of orders, drying of the concrete, the weather, etc.


To get into the commercial world, you have to start somewhere. You are recommended to start with the Blue Book’s BB Bid System. This is a free book service that lists every contractor in the US according to region. You can get a hand on a copy of this book in any contractor’s office. This helps you list your company for free. Contractors will then begin inviting you to place bids on projects as soon as you are listed. In addition to that, you are advised to meet with local contractors and request your company to be added to their bid list. And as far as the residential work projects go, you should ask any one you know to spread the word about your business and help you grow.

Once you have taken care of all of these matters, you can begin your business activities as a certified concrete contractors.

How to Become a Licensed Asbestos Abatement Contractor

How to Become a Licensed Asbestos Abatement ContractorRegistration for Asbestos Abatement Certification California

How to Become a Licensed Asbestos Abatement Contractor

A C-22 Asbestos Abatement license is issued by the CSLB, only to applicants who are registered with the Department of Industrial Relations’ Division of Occupational Safety and Health (DOSH) or have an active application for registration in process with the Division. In case the applicant does not have any proof of being registered with DOSH, CSLB will issue the license on the condition that the contractor submits the said proof within 90 days following the license issuance. In such an instance, the contractor may not begin any asbestos related work until the required proof has been submitted to the CSLB.

For the registration process to be completed, you must provide proof of the following:

  • Certification by the CSLB, unless you are a public or private employer operating on your own premises
  • Health insurance of a trust account of $500 for each employee to take care of the medical examinations and monitoring. This does not apply to contractors who do not have any employees
  • Workers Compensation Insurance coverage
  • An initial Cal/OSHA approved contractor/supervisor class of a total of five days with a one-day refresher each year
  • Relevant worker training consisting of the above Cal/OSHA approved supervisor class along with an annual course in asbestos-removal
  • Proof of compliance with the relevant occupational safety and health standards
  • Written asbestos removal operating procedures and policies
  • List of all the machinery and equipment required to perform such work

In the initial review process, DOSH will analyze the documentation, along with your compliance history and the procedures you have proposed. They might also need you to provide additional explanations or revisions to the procedures if they consider it necessary. Once you pass this initial review, you will be issued a registration certificate, valid for a time period of 1 year, unless revoked.

Training Requirements for Asbestos Abatement Certification

To obtain the Asbestos Abatement Certification, the applicant should have completed the relevant training requirements contained in Section 1529 of Title 8 in the California Code of Regulations. Get the detailed information regarding the required trainings and the class levels it covers from the CSLB website.

Experience Requirements for an Asbestos Abatement Certification California

As with all other general and specialty classifications under CSLB, every applicant for the C-22 classification will also be required to fulfill certain experience requirements. Within the 10 years, immediately prior to the application process, the applicant should have at least 4 years of experience performing asbestos abatement processes as a foreman, journeyman, contractor or a supervising employee. A Certification of Work Experience must be submitted. The criteria for places an applicant can get the relevant experience from, has also been defined by the CSLB. If the applicant does not have experience as specified by the Board, but does have some knowledge and understanding in another setting, he should submit any relevant documentation – it will be considered on a case-to-case basis.

Application for the C-22 Asbestos Abatement Contractors License

Following is a list of items you will need to take care of before you submit the application:

  • All applicants for this license must be at least 18 years of age
  • Show the full business name exactly as it appears on CSLB records
  • Enclose a non-refundable fee of $75 along with your completed application. The CSLB will not process the application if this amount is not made payable to the Registrar of Contractors
  • Your application may be returned if it is insufficient or not complete. You will be required to provide the missing information and resubmit the application to the Bureau within 90 days after the date it was returned to you. Upon failure to do so, your application becomes void and you will have to submit a new application along with the $75 fee
  • Complete the application in black or dark blue ink, with a typewriter, or on the form provided on the CSLB website. Forms completed in pencil will be returned
  • Provide full legal names. If you do not have a middle name, write “none” in place of it
  • Leave no answer space blank
  • The contractor license needs to be active and in good standing before it can be granted. In case it is not, the application will not be accepted
  • You will need to provide the complete street address for both your business and place of residence

When the CSLB receives your application, a notice of acknowledgement will be sent to you explaining how to check the status of the application online or by calling the 24-hour automated phone system at CSLB. The notification will also contain information on how to submit your fingerprints as required. Do not forget to include the Application Fee Number in any correspondence.

The C-22 Examination

As with all CSLB classifications, applicants for the C-22 Asbestos Abatement classification must also pass a trade examination and a law and business exam. The exam can be scheduled as early as 15 days from the acceptance of your license application. A complete study guide and other related information is available from the CSLB online. You can also get information regarding the exam by calling the automated 24-hour phone system at (800) 321-CSLB (2752).

The process to becoming a licensed asbestos abatement contractor may be long, but putting in the effort at the right time would be very beneficial for you in the long run. So take some time and research well into all the things you will need to successfully obtain this license.


How to Become A C10 Electrical Licensed Contractor

What is an Electrical Contractor?

According to the California Code of Regulations, Title 16, Division 8, Article 3. Classifications, a C10 Electrical Licensed Contractor “places, installs, erects or connects any electrical wires, fixtures, appliances, apparatus, raceways, conduits, solar photovoltaic cells or any part thereof, which generate, transmit, transform or utilize electrical energy in any form or for any purpose.”

How Can You Get C10 Electrical Contractor License in California

Why do you need a C10 Electrical Contractor License in California?

If you want to work as an electrical contractor in California on any project that is valued at $500 or more, you will be required to obtain a C-10 electrical contractor license from the California Contractors State License Board (CSLB). If you contract without a license, you can be held legally answerable for it and might even end up with a potential sentence of six months in jail.

How Can You Get C10 Electrical Contractor License in California?

To get a C10 Electrical Contractor License in California, there are certain steps you need to follow to gather all the required documents and get your C-10 California Electrical Exam prep in line. Have a look:

  • You must have at least four years of on-the job experience at a journeyman level or higher. In addition, you must also pass two tests – a law and business test and an electrical contractor test. Only on successful completion of these two examinations can you be issued a license.
  • You must complete a California electrical apprenticeship program. These programs combine classroom instruction with hands-on training and take at least four years to complete. In addition, you must also take and pass a certification exam to get your Certificate of Completion of Apprenticeship. You will need to include this Certificate in your C10 license application.
  • You will need to get employed as an electrical journeyman and complete one year of work in this position. Till this step, if you have completed an apprenticeship program, you will be given three years of credit and you will not have to put in the four-year general requirement.
  • Get an online copy of the Original Contractor’s License packet from the official CSLB website. Go through this pack and make yourself familiar with the basics of the licensing procedure.
  • Submit a Certificate of Work Experience from any employer under whom you have previously worked as an electrical journeyman. For applicants who have completed the apprenticeship program, you will only need to provide one year of such experience.
  • Complete the application and give it in for final processing and submission. Make sure you have provided all the supplementary documents and relevant fees and clearly mentioned the indicated address. When and if your application gets approved, you will receive a Notice to Appear for Examination and a request for your fingerprints. Guidelines will be provided on how to arrange your fingers to send an electronic copy of your prints to CSLB from your local Live Scan facility. The receipt you get from here will have to be submitted to the CSLB. Make sure you submit this receipt no later than 90 days after receiving your fingerprints request.
  • Once you have followed the above, you will be allowed to sit for the two required exams at the date and time you are provided with in your exam notice. In case of a failure to appear for the exam at the given date and time, you may be allowed to reschedule for a certain fee. Your test results will be available to you before you leave the testing site. Once you have completed the exam, you will be given instructions to submit a surety bond along with a proof of workers’ compensation insurance and a licensing fee.
  • Get a surety bond in the amount of $15,000 and submit the original bond to the CSLB within 90 days of the bond’s effective date. After this, get workers’ compensation insurance from any licensed insurance agency in California. Submit a copy of this to the CSLB.
    After you have completed the above and submitted your licensing fee to the CSLB, you will be issued a license. In addition, you will also get a wall certificate and a permanent wallet-size pocket license. You will be required to display the wall certificate in your office at all times.

How to a Get Low Voltage License

According to the California Code of Regulations, Title 16, Division 8, Article 3. Classifications,

     “A communication and low voltage contractor installs, services and maintains all types of communication and low voltage systems which are energy limited and do not exceed 91 volts. These systems include, but are not limited to telephone systems, sound systems, cable television systems, closed-circuit video systems, satellite dish antennas, instrumentation and temperature controls, and low voltage landscape lighting. Low voltage fire alarm systems are specifically not included in this section.”

The C-7 Contractor’s License is required by installers and technicians etc. who are involved in the process of installing, servicing or maintaining all types of low voltage systems. This license does not allow the licensee to work on low voltage fire alarm systems, fire protection equipment, lock and security equipment and solar equipment.

How to Get Low Voltage License?

Low Voltage contractors need a license to practice. For this, they have to follow a certain procedure, pay fees and provide several documents to complete an application and verification process. The licensing requirements vary from state to state.  If you need state-specific details, you can check the National Electrical Contractors Association website that lists in detail requirements for each state.

The following contains requirements for the C7 Low Voltage Contractors License in California.

California Low Voltage Systems License C-7 Requirements

You are advised to gather complete information on all relevant matters before beginning. The process itself can be a little complicated, therefore, being sufficiently prepared for it will be of great help. Have a look at the basic criteria you will need to meet and the kind of experience that you might be given credit for:

  • You must be at least 18 years of age or older
  • You must have at least 4 years experience of performing or supervising low voltage work (personal experience is also accepted by the state now)
  • A person with any kind of first-hand knowledge of your experience, such as the homeowner or certain employer, must be able to verify the experience
  • College degree or trade school credits can be counted as up to 3 years of the needed trade experience
  • Obtain the “Application for Original Contractor’s License” from the Contractor’s State Board office or by calling them. You can also download this application from the CSLB website
  • To get the Low Voltage License, you have to pass the Low Voltage Systems Examination along with the Law and Business Exam

California Low Voltage Systems Contractor Exam C-7 Details

If you are getting licensed for the first time, you will need to take both the law and trade exams, along with the actual contractor’s exam.  The actual contractor’s exam has 100-120 questions, with a time limit of 2-1/2 hours (around 150 minutes). You will require pre-approval from the state to sit for the examination. In addition, bear in mind that you will need at least 70% marks to pass the exam.

Exam Content

The content for a C-7 Low Voltage Contractors License Exam includes a number of topics relating to the various aspects of low voltage equipment, their installation, and maintenance and servicing. You will be exposed to topics such as job design and planning, material selections and estimation, wire/cable installation and termination, component installation, testing, troubleshooting, repairing and safety while installing.

There are several organizations that provide detailed study guides to help applicants prepare for this exam. Even if you are reapplying for a second or third time and have “mastered” the exam content, you’d still be better off preparing for the exam. This is necessary since requirements keep on changing. In addition, low voltage equipment also frequently gets updated.

Preparing for the Exam

The first thing you need to do is get your hands on the right kind of study materials. Ideally, you should cover major topics such as basic electrical theory, plan and circuit symbols, electrical materials, low voltage relay circuit, first aid, satellite antenna systems, optic fiber and computer networking processes. You might also want to cover some aspects of the health and safety orders that would be relevant to the low voltage exam and subsequent practice in the field.

California Low Voltage Systems Contractors C-7 Fees

To apply for a license, a certain amount of money needs to be paid for processing fees and application charges. The State of California has an initial application fee of $330 for new applicants. The fee amount is the same for contractors who are reapplying for licensure. There is an additional fee ($200) for a two-year license card. Following the approval of your application by the Contractors State License Board, you will be notified regarding your test date and further test-related details. In addition to these, further financial requirements need you to have at least $2,500 in working capital (this can be in cash form or equipment that will need to be verified). Along with these requirements, applicants are also required to file a bond with the Registrar in the amount of $15,000.

Receiving the C-7 Low Voltage Contractor’s License Certificate

Once you have successfully passed the examination, you will receive a wall certificate and a pocket license, certifying that you are a licensed C-7 contractor.

Further Contact Details

If you have any other queries regarding the license, its requirements, exam, fee structure or application process, following is the address to get in touch with the California State Licensing Board.

California State Licensing Board

9821 Business Park Drive

Sacramento, CA, 95826-0026

You can also get in touch with them on their website:


Note: All relevant information and guidelines are provided in great detail on the website. You will find Application for Original Contractor License in PDF – this will guide you through the application process.