Earthworks: Are the prices from the general contractor okay?

"Jein". Delivery and installation are correct. But nothing needs to be disposed of at the construction site because only the topsoil is removed, which is then redistributed. Does this change anything about your statement "The rest fits quite well."?

It was purely hypothetical. I just wanted to say that the complete service is always meant: delivery and installation, excavation and disposal, etc. In this respect, the excavator hours are simply not clear!

Regarding the excavator hours: Maybe for unforeseen things, such as removing a few concrete chunks/stones that are in the way. Or pulling roots. Is the construction fence included with maintenance? Or only assembly and disassembly? (Is the fence required at your site?)

Is the construction fence including holding? Or only assembly and disassembly? (Is the fence necessary for you?)

The price includes holding. Whether it is necessary, I cannot judge. I would say "no" since there is no pit but filling is done. But the construction company probably wants to be safe.

Would you consider the price for the earthworks + for the fence as "okay" under these conditions?

So for general contractor prices, they are okay according to the available data. Surely you would get it cheaper on site from a small wage contractor, but the effort and risk would be too great for me with a general contractor.

Still to be clarified:
Do you need the fence?

What happens to the stored topsoil? Do you need all of it for your garden later or will you have to laboriously remove the topsoil past the house later with small equipment?

What about the foundation excavation?

Thanks again for the feedback!

Surely you could get it cheaper locally from a small contractor, but the effort and risk would be too great for me with a general contractor.

I agree with that!

Do you need the fence?

The fence is probably not absolutely necessary. But if the general contractor insists on it, it will probably be difficult to do without it. They probably just want to be sure...

What happens to the stored topsoil? Do you need it all for your garden later or do you have to laboriously haul the topsoil away past the house with small equipment afterwards?

The soil can easily be spread around the house. Since no foundation excavation is necessary (a load-bearing slab will be used), the earth masses will probably be limited to the topsoil.