UAE utilities draw a firm line through every home. DEWA, SEWA, ADDC and Etihad WE own and control everything up to and including the meter; nobody you hire may touch it, and a damaged meter seal alone can trigger penalties. Beyond the meter, the rule of thumb is that like-for-like work is handyman territory while anything that changes the installation needs a contractor holding the relevant utility approval: replacing or upgrading the DB itself, adding new circuits, rewiring, increasing the connected load for a bigger AC or an EV charger, or anything the utility must inspect and reconnect.
Handyman-level work, which most tamam electrical bookings fall into, covers fault finding, socket and switch replacement, adding a socket as a spur on an existing circuit, light fixture and fan installation, water heater replacement on an existing point, and appliance connections. The technician should still be a trained electrician; handyman-level describes the regulatory weight of the job, not the skill it needs.