The requirements of what must be contained in a home remodel contract are specified in Business and Professions Code Section 7159. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=BPC§ionNum=7159.
The CSLB has a sample contract that can be reviewed to determine if your home remodel contract has the terms required by law to be included. https://www.cslb.ca.gov/About_Us/Library/Guides_And_Publications/default.aspx#GHICCONS
Violations of the contracting law can result in fines from the CSLB and even grounds for the contract to be terminated.
Consult with a licensed attorney to bring your home improvement contract into compliance.