Collection and landfill costs

You surely mean cubic meters (m³).
In my opinion, billing in m³ is anyway more than dubious. If something is taken to a landfill (which presumably didn’t happen anyway), there is usually a scale there and the landfill charges by tons (t).
The removal in cubic meters can at best serve as an estimate since the exact cubic meter amount was probably never measured and calculated.
Basically, a price per ton of removal should be agreed upon and corresponding proof, such as weighing slips and the like, should be requested.
In your case, the horse is partly out of the barn already because you agreed to it.
If I were you, I would now go to the earthmover and demand proof of the removed amount. From a legal point of view, an invoice must be comprehensible and above all verifiable; therefore, there must also be proof of the quantities removed. Just ask him to which landfill he took the soil and where the weighing slips for this are. You will see, the earthmover will start to waffle because the soil was long ago sold as fill material on another construction site or is sitting on his own storage yard.

well, it hasn't been commissioned yet, but time is running out. however, the BU only gave me the name of the earthworks contractor on Monday. other earthworks contractors I asked immediately declined, no one is taking on disposal here ... I have already tried to talk to him, but my options are limited ... so what can I still do - considering the lack of time - to not get completely taken advantage of?

You certainly mean cubic meters (m³). In my opinion, billing in m³ is questionable anyway. If something is brought to a landfill (which probably did not happen anyway), there is usually a scale there and the landfill charges by tons (t).

Then it would be a great advantage if it hadn't just rained
Or is the pile dried again before weighing?

Hello,

I have already tried to talk to him, but my options are limited ... so what can I still do - considering the lack of time - to avoid getting completely tricked?

In the end, it doesn't matter whether you charge per cubic meter or per ton – the quantity doesn't change, only the method of calculation.

As long as your soil report doesn't mention deeper foundations, you always have a rough estimate if you calculate length + 1.0 m working space x width + 1.0 m working space x height x price per cubic meter. You should discuss this calculation result with the excavation contractor; this way you can also rule out that, in the end, roughly more than "x" cubic meters appear on the invoice. And – by the way – not all people who work on/around the construction site are inherently bad!

It is important that the excavation contractor hands you an invoice after completing his work that shows all costs. Clarify with him beforehand whether he can reuse the soil or if it will be taken to a landfill. In the latter case, proof of the landfill should also be attached to the invoice.

As a rule, those who treat people the way they want to be treated themselves are always rewarded.

Best regards

Or try to negotiate a flat rate. Our civil engineer would charge just under €1200 for the disposal of 150 m³ of topsoil. You can also avoid this if you find people in a new development area who will take the soil off your hands... we were even asked if we would sell our topsoil. But unfortunately, we need it ourselves.

So he doesn't agree to a flat rate.

@Bauexperte, unfortunately I have only had bad experiences so far, so I am very cautious. The invoice you provided I also prepared, exterior dimensions are:

10 x 8.20 where 8.20 is the common house width.

So I calculated 11 x 10.20 x 3 and come to around 350 sqm. Now that is "solid" ground, what factor do I apply for loosening?

The earthworks contractor has calculated 20% more.

Regards Hilaria