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Completed glass installation by a licensed C17 glazing contractor.

How to Get Your C17 Glazing Contractors License in CA

Learn how to get your C-17 Glazing Contractors License in California today with our C-17 license in-depth guide.

What kind of work can I perform with a C17 Glazing Contractors License?

A C17 Glazing Contractors License enables you to undertake a variety of tasks involving the cutting, assembly, and installation of various glass materials, including mirrored glass and substitutes. Typically, glazers handle projects such as installing storefront window and door systems, curtain wall glazing, skylights, windows, mirrors, shower doors, and other glazing-related installations. Glazing plays a crucial role in modern architecture, offering benefits beyond mere aesthetics, such as:

  • Aesthetic Appeal: Glazing enhances the visual appeal of buildings, with architects often using glass facades and windows to create sleek, modern designs.
  • Natural Light: Glazing allows natural light to permeate interior spaces, reducing reliance on artificial lighting, which not only cuts energy costs but also creates a more inviting environment for occupants.
  • Energy Efficiency: High-performance glazing systems reduce heat transfer and minimize air leakage, thereby improving energy efficiency and contributing to lower heating and cooling costs.
  • Safety: Modern glazing products adhere to stringent safety and security standards, providing protection against forced entry, impact damage, and extreme weather conditions, thereby enhancing building safety and resilience.

By understanding the multifaceted role of glazing in construction, you'll appreciate why pursuing a licensed glazing contractor career can be both fulfilling and financially rewarding.

Storefront job performed by C17 Glazing Contractor.

Starting a Glazing Business in California: What You Need

To initiate the process of obtaining a C17 Glazing Contractor's License in California, begin by selecting a suitable business structure. The California Contractors State License Board (CSLB) issues licenses to various business types including:

  • Sole Ownership
  • Partnership
  • Corporation
  • Limited Liability Company (LLC)
  • Joint Venture

While corporations and LLCs must register with the California Secretary of State, most new glazing businesses in California opt for sole ownership. Sole ownership requires applying for a business license at the local city or county office, without the need for state-level registration.

Timeframe for Obtaining a C17 Contractor's License

The time it takes to obtain a C17 Glazing contractor's license depends on various factors, including CSLB's processing times, exam preparation, and the speed at which you complete the final licensing steps. On average, the entire process can be completed within two to three months.

California’s Requirements for the C17 Glazing Contractors License

Before aspiring individuals can become glazing contractors, they must meet specific qualifications and experience prerequisites outlined by the California Contractors State License Board (CSLB). These requirements include:

  • Being at least 18 years or old.
  • Possessing 4 years of journey level experience in the past ten years.
  • Having Social Security Number (SSN) or an Individual Taxpayer Identification Number (ITIN).
Glass materials for those who have their C17 glazing contractor license.

Application Process for the C17 Glazing Contractors License

With a clear understanding of your qualifications and chosen business structure, obtaining your contractor's license involves a systematic approach:

Step 1: Complete the application.

Thoroughly fill out the state application, ensuring accuracy to avoid delays. Sign and date it before submitting to the CSLB along with the required fee.

Step 2: Prepare for License Examinations

Prospective C17 contractors must pass both the Law and Business Examination and the Trade Examination administered by the CSLB. The Law and Business Examination assesses your understanding of construction law, business practices, and contractual obligations, while the Trade Examination evaluates your knowledge of glazing techniques, materials, and safety regulations. Prepare thoroughly for both exams to increase your chances of success.

Step 3: Application Acceptance and Test Scheduling

Upon acceptance of your application, you'll receive instructions from the CSLB on how to schedule your license examinations with the testing provider. Be sure to schedule both the Law and Business Examination and the C17 Trade Examination in a timely manner to avoid delays in the licensing process.

Step 4: Passing the Examinations

On the day of your examinations, arrive early at the testing center and bring valid photo identification. The Law and Business exam will consist of multiple-choice questions and has a time limit of 3.5 hours. The C17 Trade exam follows a similar format. After completing your required exams, the testing center will provide you a printout telling you if you passed or failed your exam.

Step 5: Submitting Required Documentation

Once you've successfully passed the required examinations, the CSLB will provide you a letter outlining any remaining steps to finalize your license process. You will have 90 days to complete these final steps. These steps may include providing necessary documents, fees, bonding, insurance, livescan fingerprinting, workers' compensation insurance, and complete an open book asbestos examination.


Congratulations on completing these steps towards obtaining your C17 Glazing Contractors License in California. Remember, glazing isn't just about glass; it's about creating beautiful, energy-efficient, and safe spaces that enhance lives. As a licensed glazing contractor, you'll have the opportunity to positively impact the built environment and leave a lasting legacy for future generations.

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