Contractors State License Schools or CSLS is the largest construction school in California, offering quality instruction and helping contractors and other professionals become licensed and run profitable businesses. Founded by David Mizener, the school provides a strong California State Contractor's License Exam Prep program with a 99% first-time pass rate and a variety of other classes in trades such as home inspection, blueprint reading, and solar energy.
Upcoming Classes at
Contractors State License Schools
Prepare for the California State License Board contractor license exam with our intensive program. Learn from industry experts and experienced teachers in a classroom setting, covering comprehensive law and business exam topics. Gain realistic test environment experience with simulated exam test questions.
Next start date:
Saturday, Apr 6th, 9am–5pm Pacific Time
Enhance your construction expertise with a comprehensive math review, equipping you with the essential skills needed for accurate estimating and bidding. Gain a competitive edge in the industry by mastering the principles, concepts, and formulas critical to success.
Next start date:
Saturday, Mar 30th, 9am–5pm Pacific Time
Gain the knowledge and skills necessary to excel in blueprint reading for residential and light industrial construction projects. Prepare for your building contractor license exam with our comprehensive program. Must meet California's age and experience requirements.
Next start date:
Saturday, Apr 13th, 9am–5pm Pacific Time
Master the art of test taking with Contractors State License Schools' comprehensive course. Learn the strategies and techniques to approach and pass the state exam, increasing your chances of success. Enhance your career and prepare for the CSLB contractor license test with confidence.
Next start date:
Saturday, Mar 30th, 9am–5pm Pacific Time
Prepare for your B-1 certification with our comprehensive ICC residential inspector exam prep course. Learn the latest code standards, regulations, and best practices, including building planning, foundations, construction materials, and more. Gain the knowledge and skills to pass your test and excel in residential building inspection.
Next start date:
Monday, Apr 15th, 6–9pm Pacific Time
Prepare for the California State License Board contractor license exam with our intensive program. Learn from industry experts and experienced teachers in a classroom setting, covering comprehensive law and business exam topics. Gain realistic test environment experience with simulated exam test questions.
Next start date:
Saturday, Apr 13th, 9am–5pm Pacific Time
Become an expert in commercial building inspections with our comprehensive course. Prepare for your B-2 exam certification and gain the knowledge you need to start and operate your own commercial inspection business. Join our ICC commercial building inspector course today!
Next start date:
Monday, Apr 29th, 6–9pm Pacific Time
Gain the essential math skills needed for success in the construction industry with this comprehensive course. Designed for professionals and individuals with construction experience, this program will equip you with the knowledge and formulas necessary for accurate estimating and bidding in California. Fluent in Spanish? No problem! Sign up today and improve your construction math skills.
Next start date:
Saturday, Apr 27th, 9am–5pm Pacific Time
Master the art of test taking with Contractors State License Schools' comprehensive course. Learn the strategies and techniques to approach and pass the state exam, increasing your chances of success. Enhance your career and prepare for the CSLB contractor license test with confidence.
Next start date:
Saturday, Apr 27th, 9am–5pm Pacific Time
Enhance your electrical expertise with a comprehensive crash course designed to help you ace the certification exam. Elevate your skills and knowledge by enrolling in our online program, tailored for those who have completed our home study program. Don't miss this opportunity to reinforce your construction experience and meet the California regulatory requirements.
Next start date:
Saturday, Jul 20th, 9am–5pm Pacific Time
As the largest school in California devoted strictly to construction professionals, CSLS has earned a reputation for service and quality instruction that is unmatched anywhere. For more than 25 years, we have helped contractors and other professionals to become licensed, learn about their trade and run more efficient, profitable businesses. Although we feel confident in saying that we are the best construction industry school in the state – with more than two dozen locations – it’s the thousands of people whose dreams we have helped turn into reality that we are most proud of.
Our school isn’t just seven times larger than the next closest competitor, but it’s one of the few around that was formed by experienced builders and instructors, not legal or insurance professionals. So, when you want to learn the construction industry the right way, and put yourself on the path to success and higher earnings, try CSLS first and see why so many others turn to us every year.
At CSLS, we are most known for our CALIFORNIA STATE CONTRACTOR’S LICENSE EXAM PREP options, which our students love because of our 99% first-time pass rate and money-back guarantee.
In addition to our Contractors exam preparation classes for over 40 trades and classifications, we also offer a number of popular classes:
Home inspection
Blueprint reading
Estimating for contractors and construction companies
EPA-RRP certification
ICC and building code certification
Solar Energy Classes
Since most of our classes can be taken in person, as a quick-study crash course, or even in Spanish, we have something for every construction professional.
CSLS was founded by David Mizener, who has more than 40 years of teaching experience and developed the “Mizener method,” which has become the gold standard for instruction in our industry. With a master’s degree in education, he founded our school in 1985 and has been responsible for helping more than 125,000 students successfully pass their state exams in the years since. We have seen firsthand how quickly the building industry has changed in the last few years, but our approach hasn’t. Although many of our classes may be offered online and with new technological aids, our focus continues to be on serving construction professionals and helping them to have profitable, enjoyable careers.
Reviews of Contractors State License Schools
(4.5-star rating across
4 reviews)
Building Code Residential
Reviewed by Sabah Y on 4/2/2018
The right place to trust, the place that cares about their students more than they care about money...
Building Code Residential
Reviewed by Teresa R on 4/2/2018
‰Û_your employees are the most courteous and helpful.
Building Code Residential
Reviewed by Eli I on 4/2/2018
You have great seminars and instructors.
Building Code Commercial
Reviewed by Ken E on 4/2/2018
Complete preparation with all the necessary information.
Building Code Commercial
Reviewed by Dale L on 4/2/2018
Your program has taken away the guess work and the worry...I passed hands down.
Building Code Commercial
Reviewed by Hervert B on 4/2/2018
...professional, competent, great material.
Introduction to Blueprint Reading
Reviewed by Ralph S. on 11/29/2023
Crash Course Live Online Webinar
Reviewed by Jesse A. on 12/13/2021
Building Code Residential
Reviewed by Jesse A. on 12/12/2021
Construction Math Review
Reviewed by Jesse A. on 11/7/2021
Review Summary by CourseHorse
Students have positive things to say about their experience at Contractors State License Schools. They feel that the school is trustworthy and genuinely cares about their success. In addition, the employees are described as courteous and helpful. Students appreciate the seminars and instructors, finding them to be knowledgeable and effective in teaching the necessary information. The program at the school is seen as comprehensive and prepares students thoroughly, leaving no room for guesswork or worry. As a result, students report passing their exams with ease. The overall professionalism and competence of the school, as well as the quality of study material, are highlighted in the reviews.
Quotes:
1. "Your program has taken away the guess work and the worry...I passed hands down."
2. "The right place to trust, the place that cares about their students more than they care about money..."
3. "Complete preparation with all the necessary information."
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