Find the source of the water and stop it, if possible.
Turn off the main circuit breakers to the structure. Do not operate electrical equipment in wet areas.
If safe, remove furnishings from wet carpet to avoid staining.
If safe, remove breakable items and items that are susceptible to water damage.
If safe, remove or lift curtains and other hanging items that touch the floor to avoid damage and staining.
Do not run fans or air conditioning if the damage is caused by flooding or a sewage leak. Doing so can spread contamination.
Open doors and windows to allow air into the structure.
Make sure you thoroughly wash your hands and disinfect tools and equipment used in water damage cleanup.