“Notice to Readers: California law requires that contractors taking jobs that total $500 or more (labor and/or materials) be licensed by the Contractors State License Board. State law also requires that contractors include their license numbers on all advertising. Check your contractor’s status at www.cslb.ca.gov or (800)321-CSLB (2752). Unlicensed persons taking jobs less than $500 must state in their advertisements that they are not licensed by the Contractors State License Board.”