What should I do right after a pipe bursts?

Immediately shut off the main water supply if it is safe to do so, and avoid areas where water may be in contact with outlets, appliances, or electrical panels. Contact a plumber to repair the pipe and a water damage restoration company to begin water extraction, moisture testing, and structural drying. If possible, move furniture and valuables away from the affected area and document visible damage for insurance purposes. Fast action can limit structural damage and reduce the risk of mold growth.