California Contractor License Guide

Study Trades helps California contractors understand their license path, prepare for the right exams, and stay organized from application to test day.

Independent CSLB exam prep and licensing guidance. Not affiliated with CSLB.

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Top California classifications

B-General Building

For builders and general contractors managing jobs across multiple trades. This is the most common path for people who want to become a general contractor in California.

A General Engineering

For contractors focused on engineering construction, infrastructure, grading, paving, and large site work. A strong fit when the work is more civil than vertical building.

C-36 Plumbing

For plumbing contractors working with water, gas, waste systems, fixtures, and related piping. This is one of California's most searched specialty license paths.

C-10 Electrical

For electrical contractors working on wiring, panels, lighting, power systems, and related electrical installations. It is one of the highest-demand specialty classifications.

B-2 Residential Remodeling

For remodelers focused on residential improvement work rather than full general building scope. A useful path for contractors who specialize in homes and renovations.

C-33 Painting

For painting and decorating contractors handling surface preparation, coatings, finishes, and related work. Often a practical first specialty license for trade-focused businesses.

C-20 HVAC

For heating, ventilating, and air-conditioning contractors working on climate systems. We use HVAC shorthand so the path is easier to understand quickly.

C-27 Landscaping

For landscaping contractors building outdoor environments, irrigation-adjacent work, planting, and site improvements. A common path for growing landscape companies.

B-General Building

For builders and general contractors managing jobs across multiple trades. This is the most common path for people who want to become a general contractor in California.

A General Engineering

For contractors focused on engineering construction, infrastructure, grading, paving, and large site work. A strong fit when the work is more civil than vertical building.

C-36 Plumbing

For plumbing contractors working with water, gas, waste systems, fixtures, and related piping. This is one of California's most searched specialty license paths.

C-10 Electrical

For electrical contractors working on wiring, panels, lighting, power systems, and related electrical installations. It is one of the highest-demand specialty classifications.

B-2 Residential Remodeling

For remodelers focused on residential improvement work rather than full general building scope. A useful path for contractors who specialize in homes and renovations.

C-33 Painting

For painting and decorating contractors handling surface preparation, coatings, finishes, and related work. Often a practical first specialty license for trade-focused businesses.

C-20 HVAC

For heating, ventilating, and air-conditioning contractors working on climate systems. We use HVAC shorthand so the path is easier to understand quickly.

C-27 Landscaping

For landscaping contractors building outdoor environments, irrigation-adjacent work, planting, and site improvements. A common path for growing landscape companies.
View all license classifications
C-2 Insulation and Acoustical C-4 Boiler, Hot Water Heating and Steam Fitting C-5 Framing and Rough Carpentry C-6 Cabinet, Millwork and Finish Carpentry C-7 Low Voltage Systems C-8 Concrete C-9 Drywall C-11 Elevator C-12 Earthwork and Paving C-13 Fencing C-15 Flooring and Floor Covering C-16 Fire Protection C-17 Glazing C-21 Building Moving and Demolition C-22 Asbestos Abatement C-23 Ornamental Metal C-28 Lock and Security Equipment C-29 Masonry C-31 Construction Zone Traffic Control C-32 Parking and Highway Improvement C-34 Pipeline C-35 Lathing and Plastering C-38 Refrigeration C-39 Roofing C-42 Sanitation System C-43 Sheet Metal C-45 Sign C-46 Solar C-47 General Manufactured Housing C-49 Tree and Palm C-50 Reinforcing Steel C-51 Structural Steel C-53 Swimming Pool C-54 Ceramic and Mosaic Tile C-55 Water Conditioning C-57 Well Drilling C-60 Welding C-61 Limited Specialty

Looking to become a general contractor?

A B General Contractor is the most popular license that enables running jobs of all types. In California, start here if you are working toward a General Contractor license.

Start here

California contractor licensing, without the guesswork.

Getting licensed in California can feel confusing because applicants need to choose the right classification, document qualifying experience, submit the CSLB application, get approved to test, pass the required exams, and complete license issuance steps. Study Trades gives you a practical path through that process so you can understand what to do next and study with a plan.

Use this guide as the broad California contractor license hub. If you already know your classification, jump into the focused license pages below.

What is included with Study Trades?

menu_book Study content

Read or listen to lessons specific to your trade classification at any time of day.

quiz Exam content

Take quizzes and practice exams that mirror the real thing, then review weak areas.

route License path guidance

Track the application-to-test-day steps so you know what comes next.

Who needs a contractor license in California?

In California, contractor licensing is handled by the Contractors State License Board, commonly called CSLB. In plain English, you generally need the proper license when you contract to perform construction work that meets California licensing rules for project value and scope.

There are exceptions and details, so do not treat this page as legal advice. Verify current requirements with CSLB before you apply, advertise, bid, or accept work.

Basic California contractor license requirements

  • Be at least 18 years old.
  • Have a Social Security number or ITIN.
  • Have qualifying experience for the classification you choose.
  • Submit the correct CSLB application.
  • Pass required exams unless CSLB grants an exemption.
  • Complete license issuance requirements such as bond, fee, and insurance requirements where applicable.

Requirements and fees can change. Always verify the current application, exam, bond, and insurance details with CSLB.

Start here

Check your license path in under a minute.

Most California contractor applicants need to be at least 18, have an SSN or ITIN, and have trade experience. Start the flow here and we will carry your selections into the next step.

Are you at least 18?
Do you have at least four years of trade experience?

California contractor license costs and timeline

The total cost can include state application fees, exam prep, fingerprints, bond, insurance, business setup, and license issuance items. Timeline varies, but many applicants should plan for several weeks to a few months depending on paperwork, corrections, exam scheduling, and study consistency.

Apply

Submit your CSLB application and fee.

Study

Prep for Law & Business plus your trade exam.

Fingerprints

Complete Live Scan when required by CSLB.

Corrections

Fix application issues if CSLB requests more info.

Exam

Schedule and pass required exams.

Bond & insurance

Finish issuance items such as bond and insurance.

Planning estimate only. Always verify current CSLB fees, processing, bond, insurance, and exam requirements directly with CSLB.

California resources

Keep learning about the California license path.

Classification choice How to know which California contractor license you actually need Getting started How to get your California contractor license moving fast B-General guide California B-General Building contractor license guide

FAQ

California contractor license FAQ

How do I get a contractor license in California?

Choose the right classification, confirm qualifying experience, submit the CSLB application, get approved to test, pass required exams, and complete license issuance steps.

How much experience do I need?

CSLB generally expects qualifying experience for the classification. Verify current experience rules with CSLB before applying.

Do I need to take the Law & Business exam?

Many applicants do. Some exemptions may exist, but you should confirm your situation with CSLB.

Which California contractor license should I apply for?

It depends on your actual experience and the work you plan to perform. Start with your scope of work, then compare classifications.

How long does it take to get licensed?

It depends on application review, exam scheduling, issuance requirements, and your study consistency. Do not wait until the last minute to prepare.

How much does a California contractor license cost?

Costs can include state fees, bond, insurance, business setup, and exam prep. Verify current fees with CSLB.

Is Study Trades affiliated with CSLB?

No. Study Trades is independent and is not affiliated with or endorsed by CSLB.

Can I start studying before my application is approved?

Yes. Many applicants start studying while their application is being reviewed so they are not starting from zero once approved to test.

What if I do not know which classification I need?

Use the classification summaries as a starting point, then verify your path with CSLB or a qualified professional if your scope is unclear.

Does Study Trades help with multiple classifications?

Study Trades is built to support multiple license paths as courses become available. California B-General prep is the first priority.