Contractors State License Schools occupies Suite 16 at 4620 Alvarado Canyon Road in Grantville, San Diego, operating one of 25-plus statewide locations in the largest contractor licensing exam-preparation network in California. Founded by David Mizener in 1985, the school uses the proprietary Mizener Method — a step-by-step teaching process developed from Mizener's master's degree in education — to prepare students for the CSLB law, business, and trade examinations required for Class A, Class B, and over 40 Class C specialty contractor classifications. The 92120 campus sits directly off the I-8 freeway at the Fairmount Avenue and Mission Gorge Road interchange, and the Grantville commercial corridor that services the construction trades — including the restoration crews at SERVPRO of San Diego East — runs east from this interchange into Santee and Lakeside. The school's 98-percent first-attempt pass rate is backed by a money-back guarantee, and the program has processed more than 200,000 graduates since its founding. Course formats include an all-inclusive in-school program, live online classes, home study, and a crash course timed to exam dates, with all materials available in English and Spanish. Beyond exam prep, the school handles full application processing — preparing and submitting CSLB paperwork on the student's behalf — and offers supplemental courses in EPA-RRP lead-based-paint safety certification, mold remediation training, ICC building-code seminars, blueprint reading, electrical certification, and home-inspection coursework. Corporation and LLC formation services help newly licensed contractors register their business entities with the California Secretary of State, and a bonding and insurance desk connects graduates to surety providers and workers' compensation carriers. The same Alvarado Canyon corridor feeds electricians through the licensing pipeline that firms including SRP Electric Inc. draw from when expanding their field crews. The school operates under the California Private Postsecondary Education Act of 2009 and is run by educators rather than bonding agents or insurance brokers, a distinction the Mizener family maintains as central to the instructional quality of the program.