The wall is not level on the base plate or protrudes by 2 cm

I find it normal to be quite insecure at the beginning and unable to assess what is normal and what is botched work. I was on the construction site every day and called the [GU], asking exactly these kinds of questions. Eventually, I still called every day, but the questions became fewer. If you have the opportunity, do the same; it gives an immense (felt) sense of security.

p.s. in your case, call the architect or [Gewerk]

Trust is very bad in construction. You are doing it right by critically checking and questioning everything. Better one construction stop too many than too few!

Trust in construction works great if you can lead. Otherwise, it sometimes backfires. It's the same as in professional life. Asking politely and factually without blame is always good. No one accuses a client of being a layperson.

Trust on construction sites works perfectly if you can lead. Otherwise, it sometimes backfires. It’s the same in professional life. Asking politely and factually without blame is always good. No one blames a client for being a layperson.

I don’t see it that way. To me, trust means that I can rely on someone and the consequences remain manageable. In construction, that would require experts and the possibility of correction. Qualified craftsmen are currently very rare and almost no longer available. And if you wait too long with a complaint, it often just means "that’s too late now, the effort of correction is disproportionate…". Craftsmen are unfortunately often the kings of excuses and appeasement. That’s why being on site every day, informing oneself meticulously, and stopping construction immediately is necessary. Ideally (even if it’s difficult) having a second company in reserve that can step in immediately. The extra cost then has to be accepted.

Better to ask once too often than once too little. The expert said to always call if something is noticed.

I don’t see it that way. For me, trust means that I can rely on someone and the consequences remain manageable. When building, that would require experts and the possibility of correction. Qualified craftsmen are currently very rare and almost no longer available. And if you wait too long with a complaint, it often only means "it’s too late now, the effort of a correction is disproportionate...". Craftsmen are unfortunately often the kings of excuses and appeasement.

Therefore, every day on site, meticulously informed and immediate stop of work. Preferably (even if it is difficult) have a second company in the background that can jump in immediately. The extra cost must then be accepted.

Doesn’t that contradict itself a bit? I also can’t do anything with the blanket statement that there are hardly any qualified workers in construction. If that reflects your experience, I’m sorry for you, but there are also bright spots. From a professional point of view, a lot went right with us, apart from the drywall installer, whom I had make the kitchen boxing 3 times because he was too stupid to read the measurements. But that’s not why I would come along and generalize...

Now we were on site with the construction manager (PS: our architect, not a general contractor, not a main contractor, but individual contracting through our architect) and looked at the whole thing. He said it was probably within acceptable tolerances and would have no major impact anyway.

Trust him. If not, then break away from him and take another construction manager.

Trust is very bad on construction sites. You are doing it right, checking and questioning everything critically. Better one construction stop too many than too few!

Building without trust is not possible. By that I do not mean blind trust.