Home improvement projects—also known as home repairs, renovations, or remodeling—range from small painting projects to complete reconstruction of rooms or of an entire home.

Home improvement projects can present a number of potential legal issues, including financing and loans (home equity line of credit or HELOC, for example); the construction contract for the work (materials and labor); surveys and lot lines; mechanic’s liens; waivers or releases of mechanic’s liens; insurance against damage or loss (builder’s risk) to the home or materials; and worker’s compensation insurance to insure against personal injuries sustained by a contractor or subcontractor.

In Arizona, home improvement projects are subject to various legal considerations. Financing such projects often involves a home equity line of credit (HELOC) or other loans, which are regulated by state and federal lending laws. The construction contract is a critical document that outlines the scope of work, materials, labor, payment schedule, and other terms; it should comply with Arizona's Registrar of Contractors requirements. Before starting a project, homeowners should verify property lines to avoid disputes. Arizona law allows for mechanic's liens, which contractors and subcontractors can file as a claim against a property if they are not paid for their services. To release a mechanic's lien, a waiver or release must be obtained once payment is made. Homeowners should also secure builder's risk insurance to protect against damage or loss during the renovation, and verify that contractors have worker's compensation insurance to cover personal injuries on the job. Failure to adhere to these regulations can result in legal disputes, fines, or delays in project completion.