Plastering work in new construction was poorly done, any experiences?

So it actually only became noticeable to us when it was painted and the lamps were in ... before, it actually looked quite good to our eyes ... it really became noticeable when the doors arrived ... upstairs I have a door where the gap at the bottom between frame/wall is 0 and at the top of the door, at about 2.10 meters height, there is simply a 1.5 cm gap / hole ... incredible ... we also have rooms that are top and rooms that were horrible .... partly I have the feeling the plaster was absorbed into the wall after application, which caused waves. So they did not plaster badly but did something wrong with the substrate. When it was painted and furnished I had the feeling we were in a charming old building, it was awful. At some point we were so dissatisfied that we hired another plasterer. After negotiations with the first company were unsuccessful. A funny story was that my husband was walking through the house with a 2m straight edge to measure the unevenness and afterwards the electrician wanted to quit on us. His boss called and said we were such demanding customers that it only caused trouble and he wanted to terminate the contract. Oh yes, those were very, very great times.

We have a very similar stairwell as you. Scaffolding was brought in again, everything had to be covered again ... then we applied primer and the new plasterer plastered on top. Afterwards, we had to prime everything again and paint again. It was hell. But in some places it also looked mega bad for us.

In the bathroom, analogous to the one picture where you only showed the one window next to which it is uneven: for such surfaces we proceeded similarly but the plasterer only touched it up and let it run out if you understand ... Worked well with lime gypsum plaster, with cement plaster it doesn't work. Looks stupid.

Therefore, my suggestion would be to have the really nasty spots reworked accordingly ... and accept the rest unless it looks as bad as it did for us.

By the way, I have been inside all 12 houses that my neighbors built one after the other. All Q2. All tip top. That you would have had to use Q3 here or that Q2 means half a shell condition is simply not true. Good companies also do Q2 well. [ATTACH alt="verputzarbeiten-in-neubau-schlecht-ausgefuehrt-erfahrungen-603104-1.jpeg" type="full"]75879[/ATTACH]

...

Unfortunately, the only low-effort and cost-effective improvement I can think of is some kind of wall design like in the attached photo. At least then it looks as if it was intentional.

It is not what you wished for; I regret that and keep my fingers crossed that you find a solution.

[ATTACH alt="13347196_8-202109081234.jpg" type="full"]75880[/ATTACH]

But such things are measured with a straightedge. Can you take some photos with it?
And why is this only noticed now, didn’t you check it after the interior plaster?

Here is a picture of the mirror!
I have pointed out to the construction company several times that it is not even. They always denied it.
We didn’t measure it directly with a straightedge, that’s why it’s only noticed now.

So it actually only became noticeable to us when it was painted and the lamps were in… before that, to our eyes, it actually looked quite good… it really became noticeable when the doors arrived… upstairs I have a door where the gap at the bottom between the frame and the wall is 0, and at the top of the door, at about 2.10 meters height, there is a 1.5 cm gap, just a hole… incredible… we also have rooms that are great and rooms that have been terrible…. Sometimes I have the feeling the plaster was absorbed into the wall after application, creating waves. So they didn’t plaster badly, but made a mistake with the base. When it was painted and furnished, I felt like we were in a charming old building, it was horrible. At some point, we were so dissatisfied that we hired another plasterer after negotiations with the first company were unsuccessful. A funny story is that my husband walked through the house measuring unevenness with a 2m straightedge, and afterwards the electrician wanted to quit on us. His boss called and said we were such demanding customers that there would only be trouble and he wanted to cancel the contract. Oh yes, those were really, really great times.

We have a very similar staircase to yours. Scaffolding came in again, everything had to be covered again… then we applied primer and the new plasterer plastered over it. Afterwards, we had to prime everything again and paint again. It was hell. But for us, it also looked really terrible in parts.

In the bathroom, similar to the one picture where you only showed the one window next to the uneven area: with surfaces like that we proceeded similarly, but the plasterer only retouched and let it bleed out if you know what I mean… This worked well with lime gypsum plaster, but not with cement plaster. It looks stupid.

That’s why my suggestion would be to have the really nasty spots properly reworked… and accept the rest unless it looks as bad as in our case.

By the way, I was inside all 12 houses that my neighbors gradually built. All Q2. All tip top. The statement that one should have used Q3 here or that Q2 is just a rough construction state is simply not true. Good companies do Q2 well too.[ATTACH alt="verputzarbeiten-in-neubau-schlecht-ausgefuehrt-erfahrungen-603104-1.jpeg"]75879[/ATTACH]

Old Swede, even our 100-year-old plaster on the ground floor looks better!! And what I have already replastered in the house as an amateur looks better than that…

Here is a picture of the mirror! I have pointed out to the construction company several times that it is not even. It was always denied. We haven't directly measured it with a straightedge, so it only just became noticeable.

That's a completely different matter than the pictures before!!!! I don't even know how that's possible. Did they set corner profiles? Is that the only wall that's out of plumb, or are there more? That usually only happens with a crooked spirit level.

Old Swede, even our 100-year-old plaster on the ground floor looks better!! And what I have already replastered in the house as
an amateur looks better than that ...

The nasty thing is that it is within the DIN standard …. And with the OP you would also have to measure how far it is "off" over 2m …. Better read through the DIN standard. And since our door looked exactly the same as described, the question is whether it is within tolerance … if yes, tough luck, if not: get an expert.