As someone whose floor was flooded, it did not cost £7000. It cost the insurance company £274,000, just to (badly) fix it, then a further £15k in compensation for everything they screwed up on the way, then another £100k for loss of value as a result of their contractors.

The problem with floor flooding is it isn’t the floor that was flooded. The floor is just a symptom. The whole house needs to be stripped and dried after a flood, during which time the house is inhabitable.