AB 559: Professions and vocations: contractors: home improvement contracts: prohibited business practices.

This bill aims to strengthen consumer protection in the home improvement industry. It requires all home improvement contracts to be in writing, including the contract amount, and prohibits downpayments exceeding $1,000 or 10% of the contract amount. The bill also prohibits contractors from requesting or accepting payment exceeding the value of work performed or material delivered. Violations of these provisions can result in fines, imprisonment, or both. The bill expands the definition of "home improvement" to include construction of accessory dwelling units on residentially zoned property. Additionally, those who violate these provisions can face license revocation for licensed contractors and civil penalties of at least $10,000.