I don't think the owner is required to go around and get quotes. He is getting the floor repaired, and has billed the client accordingly.
Maybe Cosy would like to share the price he was charged to his credit card.
Maybe it was an outrageous amount.
Don't forget, everyday this owner doesn't have it repaired, the value of his property is down, and every day the repairmen are there, it can't be rented. Maybe he was adding in these additional costs as well.
Maybe when he provided the credit card, he agreed , without understanding or reading the terms, that he already agreed to pay for all damages that incurs due to his fault. (like when you rent a car)