Damage after component acceptance. Who is liable now?

Hello! Built with architects and various companies, front door properly accepted, covered with fleece during construction progress, now removed and lower door edge looks like it was gnawed by mice, it is a wooden door. What can I do, who is responsible??? Looks like something got stuck between the door. Thanks!

How many trades were involved afterwards? Just going by feeling, it might be difficult, because you would have to prove who caused the damage. However, once several companies have been inside since the acceptance of the door, it would be hard to determine who caused the damage. Here, the only option might be to try to determine more precisely what could have caused the damage. But I think you probably won't be able to hold anyone liable for the damage, so the only thing left would probably be to contact the window fitter (if he also installed it) and discuss possible repairs with him.

We also have this on a terrace door on the upper floor. About 5cm of film roughly 5mm scraped off. As if someone had scratched over it with a shoe. In principle, only the roofer, tinsmith, and locksmith went through later.

Proof: Impossible.

Tip: Annoying, but don’t get upset. Live with it, you can’t change it anymore without a lot of money. More dents will come into the house.

Looks like something got jammed in the door. Thanks!

Possibly power cable to the construction power box?