Have you understood your construction service description?

The employees all complete at least a three-year apprenticeship and have a lot of routine and experience.

Which employees are you talking about? Many are "only" semi-skilled. Who even wants to learn carpentry or joinery anymore? How many from the trades are in your circle of friends? And having an apprenticeship alone does not give you routine or experience. Add 5-10 years on top of that. Unfortunately, some then have back problems and others are willing to undertake further training to get away from construction. And who stands at the saw in the hall? The trained talented joiner who has always wanted to do assembly line work? Maybe you’re right about the 21st century, but that was already 19 years ago. And no: I have nothing against prefabricated construction or construction workers at all, but I happened to have insight into a newly developed residential area. By the way, your ELK is also available from 138,500 :P

what is so difficult about building a simple, defect-free house in the 21st century.

The defect-free house does not exist. A house with as few defects as possible is not hard to obtain, but you have to set the course correctly. At the beginning, you wrote that you are looking for a prefabricated house. That is already not the most suitable way: what is called a "prefabricated house" – i.e., a timber frame panel prefabrication house – has meanwhile become an industrial product par excellence. If you want few defects, the straightest path leads to the owner-managed provider whose name is regional capital that he takes care of. Whether that is a Steiner or Hölzner is secondary.

At the moment, about 80 pink notes in the scope of work description are stuck

By the way, last week I saw a thread in the green forum where numerous orange notes were stuck on the walls of an apartment – everywhere the floor tiler – frankly, I don’t know how he managed it – had made defects in the walls.

Craftsmen with journeyman and master certificates want to be paid fairly. Especially those who are really good can demand this.

When what some do is put out to tender and the cheapest gets the contract, they often rummage through the scrap box.

Money printing, time pressure from the client, full order books, shortage of skilled workers or labor – only the quality can suffer.

If what some do is put out to tender and the cheapest gets the contract, then

... Pisa has arrived in the world of house building and the instrument of tendering has been misunderstood.

The problem with house construction is that every house is a prototype. Even with industrial products there are problems during production, only the customer doesn't see them directly.

The people at Elk Haus are also a bunch of jokers. By smart home, I understand something different than Homeway multimedia wiring. Above all, instead of Homeway, I would do the wiring properly right away.

It is best to pay attention not only to the included services in the construction performance description but also to the technical details. Especially with prefabricated houses, there are significant differences. Depending on the wall structure, can shelves, etc., only be mounted with cavity anchors, or is a proper OSB board or similar installed everywhere right away? I would also personally be cautious with vapor barriers (foils) in the wall. Under no circumstances should these be damaged when drilling. There are also major differences in soundproofing due to the wall structure – there is currently a thread about this in the subforum for defects. It is best if you visit a house from your preferred provider and pay attention to these points. Also, it is best to talk to homeowners!