InsideThePropertyLine.com publishes home improvement and construction advertisements from companies and individuals who have been licensed by the State of California. InsideThePropertyLine.com also publishes advertisements from unlicensed companies and individuals. All licensed contractors are required by State Law to list their license number in advertisements offering their services. The Law also states that contractors performing work of $500 or more must be licensed by the State. Unlicensed contractors taking jobs that total less than $500 must state in the advertisement that they are not licensed by the Contractors State License Board. Further information can be obtained by contacting the Contractor’s State License Board at 559-445-5281 or 1-800-321-2752 to check a license number go to www.cslb.ca.gov.