Close the main shutoff, which stops every repair clock in the house at once. If you do not know where it is, say so on the call and you will be walked to the usual locations. Then power off to wet rooms if water is near outlets, move what can be moved off wet floors, and photograph the scene before cleanup. Mop last. The photos and the timeline are what an insurer works from, and drying decisions in the first day decide how much flooring and wall can be saved.
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