What should I do before the crew arrives?
Close the main water valve if it is safe to reach, turn off power to the wet rooms at the breaker if the panel is dry, and move people, pets and valuables out of the water. Photograph the water and the damage before anything is moved, and write down the time you found it.
Photographs made in the first hour are the record that counts later. Take wide shots of each affected room, close shots of the water line on the wall, and a few of the source if you can see it. Keep the time and date on them. Do not pile wet items in the middle of the floor, and do not start pulling up carpet yourself, because that spreads the water to new areas and can hide where it came from.
Keep children and pets away from the water and from any cords lying in it. If you have to step into standing water to reach the valve, wear rubber boots and keep one hand on a dry surface. If the panel is wet, or the water is above the bottom of an outlet, leave the power off at the meter or call your utility, and do not reach in to switch things on.
Why does a wet wall keep getting worse after the floor is dry?
Water wicks up through drywall, insulation and the wood sill plate, so a wall can stay wet for days after the floor looks dry. The crew checks the wall base with a meter and opens the wall where the readings stay high.
Drywall paper acts like a wick. A few inches of water at the floor can climb several inches up the wall, and the paper keeps the wet line moving after the surface has dried. Paint bubbles and a stain line often show up days later, which is how many owners first learn that the water went higher than they thought.
The fix is measurement, not guesswork. The technician reads the moisture in the wall at several heights, and a cut is made where the reading stays above the level of dry material. Insulation that is soaked is removed, and the framing is dried in place with air movement. The cut is small, and the cavity is photographed before it is closed.
What does the crew look at to decide the work is done?
Extraction is done when the free water is gone, and drying is done when moisture readings in the floor, the wall and the framing come back to normal levels. The crew compares each reading with the dry reference taken on the first visit.
Visual checks are not enough. A floor can look dry while the subfloor under it stays wet, and a wall can look dry while the cavity behind it still holds water. The technician records readings in each layer, and the same points are read again on each return visit so the trend is visible.
A record of the visit is left with you. It shows where the water went, what was removed, what was dried in place and what the readings were on each day. That record is also what an insurer or a contractor will ask for, so keep it with your other papers.