Yes, in most cases it is recommended that a certified electrician be hired to perform the installation. An experienced electrician will be able to ensure the job is completed correctly and safely, as well as being able to advise on any local codes or regulations that may apply. Electricians are also trained in proper wiring techniques and can help prevent any potential damage from occurring during the installation process. In some circumstances, depending on the type of EV charger unit used and local laws, an approved contractor may be sufficient for certain installations; however it is always best practice to consult with a certified electrician for advice.