Musheg A.
10/27/2025
Trying to get ready for the B1 and B2 ICC courses. I am so glad working with Julio C. 100% recommendation getting in contact with Him! Thank you School!
Contractors State License Schools
Closed
(77)
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1345 E Colorado St # B
Glendale, CA 91205
Contractors State License Schools (CSLS) in Glendale, CA, has been a leading institution for contractor exam preparation for over 40 years, successfully guiding more than 200,000 students toward licensure in various trades. Renowned for their unique Mizener Method, CSLS offers a comprehensive range of study programs, including online, home study, and in-school options, ensuring students are well-prepared for their exams.
With a remarkable 99% first-time pass rate guarantee, CSLS stands out as the largest contractor licensing school in California. Their dedicated approach, combining tailored courses and a supportive learning environment, makes them the preferred choice for aspiring licensed contractors across the state.
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Reviews
4.577 reviews
Lorenzo F.
11/4/2025
Julio Avila at CSLS was great to work with! He made signing up for my General B license super easy and quick. He explained everything clearly -- especially the payment options -- and got me set up...
Anthony A.
8/25/2025
Signed up to Get my general, contracting B License. Julio Avila was super kind and helpful. Very savy and explained everything well. took care of every question I had. Can't wait until I start...
Flora L.
10/1/2024
Great School and helpful stuff, especially Jennifer Villalobos and Alberto Campos! They were very responsive, helped me with application and course material, scheduled my classes, and encouraged...
Raquel Q.
5/1/2025
Julio Avila helped us with getting our study materials for haz certification. It was a smooth transaction.
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