Windowpane) never replaceable again

Says who?

Rhenish greetings

A customer-oriented service employee of the construction company, who is involved with planning the windows (unfortunately not in my case).
It is quite clear that you can (almost) somehow make everything work, but with a slightly different planning this possibly eventually occurring problem could have been avoided.
And again, it is not about the fact that the staircase is in front of the window, that you cannot open it, or that cleaning is a bit fiddly!
Only, I think it is not a planning masterpiece if replacing the pane would cost about €1000 instead of maybe €200 (statement by the employee of the construction company, who also advised us to check whether this is not a hidden defect...)
And that is why I asked for opinions or experiences.
Normally, if anything, it would rather be the case that, for example, playing children shoot the pane with a ball and the insurance would pay for it...

I don't find the basic consideration all that wrong and have the impression that it is being discussed not particularly objectively but rather emotionally. We are currently still planning our house, i.e. we are waiting for the building permit and for us it is comparable. We have also planned such a window in the staircase and although we certainly gave a lot of thought to the planning, we did not think about the case that the pane could break and need to be replaced. In this respect, I find the initial question appropriate and would also consider it a planning error. However, I am a layman and cannot define exactly what a planning error is. Since I was "assigned" an architect by my general contractor, whom I would describe as somewhat dim-witted, it doesn't surprise me that he didn't point out this possibility to us. And because plenty of mishaps have occurred, I have now inquired about how it would be with this window pane in case of damage, whereby I tried to be polite in the inquiry, even though I consider him an idiot. Personally, I found this post extremely helpful and that is more or less the purpose of such a forum.

Honestly, I don't see any defect in that either. Otherwise, anyone who installs a water or electrical line concealed in the wall would have to point out that in case of replacement, the repair costs are many times higher than for surface-mounted pipes. We can take this further. I've seen very few basements where installing a buffer tank after 20 years was without problems. Should the planner also point out here to make the doors bigger? There are so many things like that. A builder simply has to think along. Sometimes something slips through, but then that's just how it is!

Look at it this way, you first have a warranty. If a defect appears with the window during that time requiring replacement, that's not your problem. If thereafter there is a desire for replacement or the children smash it, you just have to shell out 1000€ instead of only 200€ and replace it. By accepting it, you have knowingly or unknowingly confirmed that you want it exactly like this.

Honestly, I don't see any defect in that either. Otherwise, anyone who installs a water or electrical line concealed in the wall would have to point out that in case of replacement, the repair costs are many times higher than for surface-mounted pipes. We could go on like this. I've seen very few basements where installing a buffer tank after 20 years was trouble-free. Should the planner also point out here to make the doors bigger? There's so much of that. A builder simply has to think along as well. Sometimes something slips through, but then that's just how it is!

Look at it this way, you initially have a warranty. If a defect occurs with the window during that time so that it needs to be replaced, that’s not your problem. If afterwards there is a desire or the children break it, you just have to pay the 1000€ instead of only 200€ and replace it. By accepting it, you have consciously or unconsciously confirmed that you want it that way.

Well, there are just things that are obvious. For example, a 120cm wide oil tank obviously won’t fit through a 90cm door. But if you have never installed a window yourself, it’s hard to estimate (based on the plan!!!) whether or how you can later replace a pane. Well, in 90% of cases it would probably be an insurance claim anyway...

If the architect points out to me that replacing a pane in this solution would be costly and I still want it that way for aesthetic reasons, that may be acceptable. On the other hand, it is also his job, if I am not mistaken, to suggest more cost-effective solutions. For example, the window could also be divided. I have seen that before and it did not look bad at all. It was probably done that way for exactly this reason.

The comparison with the concealed wiring is flawed anyway and in my opinion far-fetched, maybe it was meant to be original. In reality, replacing a window pane will occur much more often than replacing a water pipe.