For fixed wallbox chargers (11kW / 22kW) in UK and mainland Europe, you must hire a qualified certified electrician for installation. A dedicated circuit, independent wiring, residual current protection and compliant earthing are required. DIY installation is legally not permitted. Unauthorised self-installation will void the product warranty and pose serious electrical safety hazards.
For portable EV chargers in UK and Europe, If you simply plug the charger into an existing compliant household socket (Type G socket in the UK, Schuko socket or CEE industrial socket in Europe), no electrician is required.
If you need to install a new dedicated socket or run new dedicated wiring for a portable charger, you must still hire a professional electrician for the work.