@ralphdibny We had a leak from the upstairs bathroom but luckily that mostly came through a light fitting. There was an amazing amount of water from what was a very small leak but it had all gathered in the glass shade below and then eventually got too heavy and smashed down on floor. As most of the water had gone that way it was just a case of drying everything out and then doing a bit of patching up of the paintwork and buying a new light fitting. You can always use a dehumidifier if you've got one as that will speed up the drying process.
Edit: ignore the dehumidifier bit as it's a bit redundant now based on your previous post
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