Avis Contractors License School are leaders in exam preparation programs, and have been serving Southern California for over 25 years. Everyone knows only the licensed contractors get the good jobs. No one wants to hire an unlicensed contractor and wind up watching their money poured down the drain. We offer programs for many different Trades, from Electrical and Landscaping, to Locksmithing, Masonry, Roofing, and Heating & Air Conditioning. Theres many more, those are just a few.