The electrical installation usually already exists, but the number of points is not enough. Electrical changes are necessary in nearly  every renovated and every new apartment:
– electrical points – lead wire,
– electrical points – mounting the box,
– TV tunnel,
– LED strip with or without a strip,
– surface-mounted lighting,
– chandeliers and lamps,
– halogens,
– white assembly – switches and sockets,
– Induction hob,
– oven.