How much collateral damage during structural building work is normal and what needs remedying by the builder?

[Alloutofusernames1]

I have had two rooms knocked into one. The builders did not protect the lovely parquet floor as fully as they should and there are now some dents in it (it used to be perfect).
Is this just par for the course when building work happens or should I expect them to remedy it?

Likewise the hallway and staircase is trashed from the loft conversion with people scraping the walls - I find this one more acceptable than the floor though as I expected it.

Views please?

Not acceptable to damage the floor at all... they were lazy not protecting properly
I agree the stairs is not an issue

Ok thanks - I will raise this and ask them to repair it somehow. It looks pretty rubbish and I have photos to show the state of it before.

No it isn't acceptable at all. My builders were brilliant in protecting existing fittings. Even the pathway outside was protected with thick boarding!!

If you ask the builders to repair it, they could make the damage worse. Do not pay them for the building work until you have had a price for repairing the damage from a flooring specialist. I would speak to the builder and point out the damage caused in the first instance and back up with the original photos. Agree a way forward but make sure you hold back enough money to cover the repair costs. They should have protected the floor with dust sheets and ply or similar boarding to ensure that the floor couldn’t be damaged by falling masonry.