Prefabricated garage - cable pinched during probing

The prefabricated garage (Zapf) was installed. Since it was misaligned, the garage was re-leveled a few weeks later. In the meantime, I had prepared coaxial cables for the satellite system and laid them on the garage roof. Unfortunately, part of the cable was then lying between the house and garage wall. When re-leveling, the installers pinched the cable between the garage and house wall so tightly that it cannot be pulled out without breaking.

The garage company denies responsibility and says, "Basically, we are not responsible for cables, coverings, and their installation between our garages and other building parts; however, we describe this extensively in our delivery description, where the owner or developer is responsible..."

For me, this is property damage and/or has something to do with product liability; am I mistaken? Anyone have a tip on how I should proceed?

I would have said that the clause is not valid. But I'm just an amateur. They can't just do whatever they want if there's a cable lying there.

If it's coaxial cable, then you go to the hardware store and get a few meters of cable and 2 connectors and fix it yourself quickly. The whole thing costs less than 10€. But I don't know the exact circumstances based on your description.

I wouldn't make a fuss about that, everyone including yourself didn't think about the cable and I wouldn't blame the garage people. The damage is trivial and simple to fix.

There are 4 coaxial cables, which take a bit of time to connect without attenuation losses. I also pointed out beforehand that there are cables lying there.

Of course, I do not know the preparation of the installation nor the amount of cables or whether they could have been moved aside or not. I am also not aware of any other circumstances. I get the impression comparable to "Watch my car" instead of quickly moving it aside if it is foreseeable that it will be tight and blaming others because something happened. I may be wrong. Even 4 pinched cables are not a big damage, although annoying. I would measure the attenuation and leave everything as it is if the measurements are okay.

These are coaxial cables. I know what you mean by attenuation losses, but you can even plug the parts into the TV without shielding for a few centimeters and it still works. Even as a layman, one side of the connector is attached within a maximum of 10 minutes. After no more than 3 pieces, you only need 5 minutes. So about 1 1/2 hours and the thing is done. I wouldn't make a drama out of it even though I understand that it sucks when the company shows no goodwill.