What to Do in the First Hour After Water Damage

Water damage is a race against absorption. Within the first minutes, water spreads across the surface it landed on. Within an hour, it is wicking into drywall, seeping under baseboards and soaking into carpet padding. Within a day, materials begin to swell and mold has the conditions it needs to start.

The good news is that the first hour is almost entirely about a few decisions rather than equipment. What you turn off, what you photograph and what you refuse to touch determine how the next five days go.

Step 1: Stop the Source, If You Can Do It Safely

Nothing else matters until the water stops. If the source is a fixture, a supply line or an appliance hose, the shutoff valve is usually within a few feet: under the sink, behind the toilet, or on the cold-water line feeding the washing machine. If you cannot find it, or the leak is from a pipe inside a wall, use the main shutoff for the house. In most South Carolina homes that is at the street or at the point where the supply enters the house, often near a hose bib or in a utility area.

If the water is coming through a drain, a floor drain or a toilet, you cannot shut it off at the source. Stop using water in the house instead. Do not run the washing machine, dishwasher, shower or tub, and do not flush, because every gallon you send down the line comes back into the room.

If the water arrived from outside during a storm, there may be nothing to shut off. Your job in that case is to keep the water from reaching more of the house and to get help started.

Step 2: Handle Electricity Before Anything Else

Water and live wiring are the reason this step comes before cleanup. If water is anywhere near an outlet, an extension cord, a hardwired appliance or the electrical panel itself, do not wade in. If you can reach the breaker panel while standing on a dry surface, shut off power to the affected area. If the panel itself is wet, or if reaching it means walking through water, leave it alone and call an electrician and a restoration line from a dry location.

The same caution applies to gas appliances and to a furnace or air handler sitting in water. Do not operate them. If you smell gas, leave the building and call 911 before anything else on this list.

Step 3: Photograph Everything Before You Move It

Insurance claims are decided on documentation. Before you pull up carpet, before you move furniture, and before you throw out a soaked rug, take a slow video walkthrough of the affected area. Photograph the source of the water, the water line on the walls, damaged furniture and any visible standing water. Include a clock or an item that shows scale, and get wide shots as well as close-ups.

Write down the time you noticed the water and the time you shut it off. That single detail helps an adjuster understand how much absorption occurred. If a plumber or appliance technician comes out, keep the invoice and any parts they remove.

This documentation step takes ten minutes and it is the one homeowners most often skip. Without it, a claim for ruined flooring can turn into an argument about whether the flooring was already damaged.

Step 4: Remove What You Can, Carefully

With the water stopped and the area safe, you can limit the spread without specialized equipment. Towels and a mop handle surface water on sealed floors. A wet-dry vacuum can pick up shallow standing water on hard surfaces. Area rugs should come out of the room entirely, because a saturated rug sitting on a wood floor keeps moisture trapped against it.

Move furniture off wet carpet onto dry flooring or onto foil or plastic tabs. Legs sitting in water stain carpet and wick moisture upward into the piece. Lift drapery off the floor by looping it over the curtain rod. Remove cardboard boxes, paper, books and anything else porous that you do not need, because those items stay wet and hold humidity in the room.

Wipe down hard surfaces and cabinet exteriors that were splashed. Open cabinet doors under sinks so air can move. If the water came through a ceiling, place a bucket under the drip and put a small hole in a sagging bulge only if a contractor instructs you to, since a full ceiling collapse can be dangerous.

Step 5: Ventilate, But Only for Clean Water

Air movement helps dry a room, but the source of the water decides whether you should create it. Clean water from a supply line is safe to ventilate: open windows if the outside air is dry, and run ceiling fans or portable fans to move air across the surface.

Do not do this with contaminated water. Water from a drain, toilet, sewer line, outside flooding or water that has been standing long enough to smell must not be blown around with household fans. That aerosolizes bacteria and spreads contamination through the house. Close the door to the affected room instead, shut off the HVAC system if the water is near a return, and wait for a crew with proper containment.

Also skip the household dehumidifier as a substitute for professional drying. It will pull some moisture out of the air, but it cannot dry inside a wall cavity or under a floor, which is where the damage continues.

Step 6: Make the Call Early, Not After You Have Tried Everything

There is no charge for calling a restoration dispatch line, and the conversation usually takes a few minutes. Describe the address, the source of the water, when it started and which rooms are affected. Mention anything below grade, because a wet crawlspace or basement changes the equipment required.

The reason to call before you have exhausted your own cleanup effort is timing. Drying takes days, and every hour of absorption adds material to the replacement list. A room caught early can often be dried in place; the same room after two days may need drywall, baseboard and flooring replaced.

If you are not sure whether the situation is serious enough to warrant a crew, describe it and ask. It is a much better use of a phone call than a week of hoping the smell goes away.

• Source stopped and area made electrically safe
• Photographs and a written timeline completed
• Porous items and area rugs removed from the room
• Clean-water losses ventilated, contaminated water contained
• Restoration call placed on the day of the loss, not days later