What You Need to Know Before You Start

A general contractor's license in California is issued by the Department of Consumer Affairs, Contractors State License Board (CSLB) — not by your local city or county, even though you'll need local permits to work. The license lets you legally bid on and perform construction work valued over $500. Without it, you cannot legally contract for jobs in that range, and doing so can result in fines and the work being undone at your expense.

The process takes several months from start to finish. You will need to pass two exams (the Law and Business exam, and the Trade exam specific to your construction specialty), show proof of four years of construction experience, and pay process and exam fees. The CSLB does not issue licenses quickly — expect four to six months from process to receiving your actual license in the mail.

Key Takeaways

  • You must have four years of documented construction experience in your trade before the CSLB will consider your process.
  • You will take two separate exams: the Law and Business exam (required for all contractors) and a Trade exam specific to your construction specialty.
  • The process process is entirely through the CSLB website; you cannot explore in person or by mail.
  • Exam fees and process fees total several hundred dollars, and you may need to retake an exam if you do not pass on your first attempt.
  • Once you pass both exams and the CSLB approves your process, your physical license arrives by mail — this final step can take several weeks.

Verify You Meet the Experience Requirement

The CSLB requires four years of construction experience in your specific trade before you can sit for the exams. This means four years of hands-on work in the field you plan to license in — for example, four years as a carpenter, electrician, plumber, or general building contractor. The experience does not have to be continuous, and it does not have to be in California, but it must be documented.

You will need to provide names, addresses, and phone numbers of employers or clients who can verify your work history. The CSLB may contact them directly. If you are self-employed, you will need to show business records, tax returns, or contracts that prove you performed the work yourself. If you cannot document four years of experience, you cannot move forward with the process.

Choose Your License Classification and Study for Exams

The CSLB offers licenses in several classifications: General Building Contractor, Specialty Contractor (with many sub-categories like Electrical, Plumbing, HVAC, Roofing, Framing, and others), and Home Improvement Contractor. Your classification determines which Trade exam you take. For example, if you want to license as an electrician, you take the Electrical Trade exam. If you want to license as a general building contractor, you take the General Building Contractor Trade exam.

Both exams are open-book, meaning you can bring reference materials into the testing room. The Law and Business exam covers California contractor law, labor codes, and business practices. The Trade exam covers technical knowledge specific to your field. The CSLB publishes study guides and reference materials for each exam on its website. Many contractors use study guides from third-party publishers or take prep courses, though these are not required.

You can take the exams in any order, but most people take the Law and Business exam first. You do not have to pass both exams before explore — you can explore after passing one, but the CSLB will not issue your license until both are passed.

Register with the CSLB and Submit Your process

Go to the CSLB website and create an account in their online licensing system. You will provide your personal information, work history, and the names of people who can verify your experience. The CSLB will contact your references to confirm your four years of experience. This verification step can take several weeks.

Once your account is set up, you will pay the process fee (the amount varies by license type but is typically $150 to $250) and schedule your exams. You can schedule both exams at once or schedule them separately. Exam fees are charged per exam, typically $60 to $100 each depending on your classification. You will receive confirmation emails with your exam dates and testing locations.

Take Both Exams and Wait for Approval

You will take your exams at a testing center managed by a third-party testing company contracted by the CSLB. Bring your identification, your exam confirmation email, and any reference materials allowed for that exam. The Law and Business exam is open-book; the Trade exam rules vary by classification, so check your exam details before you arrive.

You will receive your exam results when ready or within a few days. If you pass both exams, the CSLB will review your process for completeness and accuracy. If you fail an exam, you can retake it after a waiting period (usually 30 days). You will pay the exam fee again.

Once the CSLB approves your process — meaning you have passed both exams, your experience has been verified, and all documents are in order — they will issue your license. Your physical license card will arrive by mail. This final step typically takes two to four weeks after approval.

Understand Ongoing Requirements After You Receive Your License

Your general contractor's license is valid for four years from the date of issuance. Before it expires, you must renew it through the CSLB. Renewal requires paying a renewal fee and meeting continuing education requirements. California requires all licensed contractors to complete four hours of continuing education every two years, with at least two hours in law and business topics.

You must also maintain workers' compensation insurance and general liability insurance while you hold a license. The CSLB can suspend or revoke your license if you fail to maintain insurance, violate labor laws, or engage in fraudulent practices. Keep your license information current with the CSLB — if you move or change your business address, notify them within 30 days.

What Happens If You Fail an Exam or Your process Is Denied

If you fail the Law and Business exam or your Trade exam, you can retake it after waiting 30 days. You will pay the exam fee again. There is no limit to how many times you can retake an exam, but each attempt costs money and takes time.

If the CSLB denies your process, they will send you a written explanation. Common reasons for denial include insufficient documented experience, false information on your process, or failure to pass both exams within a certain timeframe. If your process is denied, you can request a hearing or reapply after addressing the reason for denial.

Frequently Asked Questions

Can I work as a contractor before my license arrives in the mail?

No. You cannot legally bid on or perform construction work over $500 until you hold an active license. Once the CSLB approves your process, you can check your license status online, but you should wait for your physical license to arrive before signing contracts. Some contractors print their online license confirmation while waiting for the card, but this is not standard practice.

Do I need a local city or county license in addition to the state license?

Yes. The CSLB license is your state license. Most cities and counties also require a local contractor's license or business license. You will need to contact your city or county building department to find out what local permits or licenses they require. These are separate from the CSLB license and have their own fees and timelines.

What if my work experience is from another state or country?

The CSLB accepts work experience from anywhere, as long as you can document it. You will need to provide the same verification — employer names, addresses, phone numbers, or business records — regardless of where the work took place. If your references are in another country, the CSLB may have difficulty contacting them, so be prepared to provide additional documentation like contracts or invoices.

How much does it cost to get a general contractor's license?

The total cost depends on how many times you need to retake exams. The process fee is typically $150 to $250, and each exam costs $60 to $100. If you pass both exams on your first attempt, your total is roughly $300 to $500. If you retake one or both exams, add $60 to $100 for each additional attempt. You may also want to budget for study materials or prep courses, which are optional.

Can I hold a general contractor's license and a specialty license at the same time?

Yes. Many contractors hold multiple licenses. You would explore for each license separately, pass the required exams for each, and pay separate process fees. This allows you to bid on a wider range of work, but it also means more exams to study for and more renewal fees every four years.