No, it is not necessary to hire an expert when installing and using a jewelry wall safe. However, if you have any questions or concerns about the safe installation or use, it is always a good idea to consult with a qualified professional. A certified safe installer will be able to answer any questions you may have about the safe installation process, and can also help you determine whether or not the safe is the right size for your needs. They can also provide you with a warranty if you decide to purchase the safe.