Build a terraced end house with an additional unit (GÜ) on your own

A socket costs us 19€...

Here: 60 euros per piece whether it's a single, double, or triple combo.... with 26 outlets for the whole house in the standard as well as 7 fuses - every additional fuse around 70 euros.

LAN duplex 220 bucks. Consequently, I had 9 empty conduits laid accordingly, which were relatively cheap at around 60 each. The rest then with EL.

It's pretty bad what prices are being asked for a simple socket, especially when you know the prices electricians pay for them in wholesale. I'm lucky that my father works in wholesale and can get them accordingly cheap. I once asked him how much such a socket with everything included costs (basic standard). It's around 5€ net for the electrician.

You must, however, note that the price includes all material and labor time. Chiseling the hole, slot, and laying the cable also costs money.

Then please make sure that he lays the LAN cable in the empty conduit according to DIN 18015.

Then please make sure that he installs the LAN cable according to DIN 18015 in the empty conduit.

I think he will definitely comply with the DIN - several empty conduits were already installed during the shell construction phase. Just as it should be.

I once asked him what such an outlet with everything included costs (standard off-the-shelf). It’s about 5€ net for the electrician

Sure, the outlet itself. It’s kept in the craftsman’s office for that. How does it then get to the wall in the shell construction, and how is it supplied with electricity: who chisels the slots, who makes the distribution boxes, who pays for the wiring, who pays for the possibly required additional protection? Who measures it through in the end?