Licensed contractors have been trained to understand and meet the requirements set by the city council and federal government.  Not all contractors follow the steps necessary to complete a job safely and on time.  Licensed contractors will take responsibility if something goes wrong, as ignoring issues could result in the loss of their license.  Homeowners who deal with licensed contractors are protected.  That means that if a licensed company goes broke or walks off with your money, consumers can notify AZ Registrar of Contractors.  The Registrar will investigate the claim and works like a mediator to resolve the issues.  It’s always the best. t hire a licensed contractor.