What to Do in the First Hour After Water Damage

Published September 15, 2026 by Indiana Water Damage Pros

Make safety the first decision

The instinct to grab towels is strong, and it is also the fastest way to get hurt. A flooded room holds hazards that are not obvious from the doorway. Take thirty seconds to read the space before you step into it.

• Electricity: Do not walk through standing water anywhere near outlets, power strips, extension cords, or appliances that are plugged in. If the breaker panel is in a dry location you can reach safely, shut off power to the affected rooms. If the panel itself is wet or surrounded by water, leave it alone and call for help.
• Structure: A sagging ceiling or a bulging wall means drywall is holding trapped water. Do not stand under it, and do not poke holes in it to drain it unless a professional has told you it is safe.
• Contamination: Water that came up through a floor drain, a toilet, or an exterior door during a storm is not clean. Sewage backups and river flooding carry bacteria and other contaminants. Wear rubber boots and gloves, and wash thoroughly afterward.
• Air quality: If you smell gas or an unusual chemical odor, get everyone out of the house and call the utility or emergency services from outside.

Shut off the water, or know that you cannot

The next priority is stopping more water from entering the house. What that looks like depends entirely on the source.

A supply line, appliance, or fixture leak

For a sink, toilet, dishwasher, or washing machine connection, close the small angle stop valve behind or beside the fixture. If that does not stop the flow, or the leak is inside a wall, close the main shutoff valve for the house. In many Indiana homes the main valve sits near the water meter in the basement or crawl space. If the valve is old and will not turn by hand, do not force it; a snapped stem turns a leak into an open pipe. Call the water utility or a plumber.

A drain or sewer backup

There is no valve for this one. Stop using water in the house entirely: do not flush toilets, run the washing machine or dishwasher, or take showers. A backup means the line is already overwhelmed or blocked, and every gallon you send down makes the flooding worse. This is a category 3 event, and it needs professional cleanup rather than household effort.

Document first, clean second

Insurance adjusters work from records, and the record you build in the first hour is usually the most useful one. Cleaning before documenting can cost you the ability to prove what was damaged. Spend ten minutes on this before you pick up anything.

1. Take wide photos of every affected room from the doorway, then close-ups of the water source and the water line on walls and furniture.
2. Write down the time you discovered the water and the time the source was stopped.
3. List damaged items room by room. Do not throw out ruined belongings you might claim; move them to a dry area such as a garage and let the adjuster decide.
4. Keep receipts for anything you buy to limit the damage, including a hotel room if you need to leave.
5. Note the source in plain language: supply line, water heater, sump pump, window well, sewer backup, or surface flooding. That single detail shapes how the claim is handled.

Start drying what you can reach

Professional drying equipment does the heavy lifting, but a few cheap actions in the first hour reduce how much material has to be replaced. Focus on air movement and separating wet surfaces from dry ones.

• Pull furniture off wet carpet and place foil or plastic under the legs so stains do not set into upholstery and wood.
• Roll up and remove area rugs, which hold water against the flooring underneath.
• Lay towels on hard floors and change them as they saturate, but do not leave them wadded in corners.
• Open cabinet and closet doors so air can reach the back walls and shelves.
• Run existing ceiling fans and portable fans in rooms with clean water only. Skip this step for sewage backups, where airflow can spread contamination.

Skip the shop vacuum unless you know the water is clean and shallow. A wet-dry vac can pull up surface water from carpet, but it will not reach the padding, subfloor, or the bottom plate of the wall, which is where the lasting damage happens. Never use a household vacuum of any kind near standing water.

Know when the job has outgrown towels

Small spills in a single room are manageable. Anything larger needs extraction equipment, air movers, and dehumidifiers running in a calculated layout, with moisture readings logged daily until materials match a dry standard. Call for help when the water came from a drain or sewer, when it covers more than a small area, when it has been sitting for more than a few hours, when it reached carpet padding or wall cavities, or when you can see it in a ceiling.

Professional emergency water extraction followed by water damage restoration handles the sequence from pumping to repairs. When a leak has gone unnoticed for days, mold remediation may be added once the structure is dry. Providers serving Indianapolis, Fort Wayne, and Evansville handle burst pipes and storm losses through every season, from January freezes to spring storms. More homeowner guides are collected on the blog.

The hour that matters most

Safety, shutoff, documentation, drying. In that order, the first hour protects both your household and your claim. Water damage gets more expensive with every hour that passes, not because the water keeps rising, but because it keeps wicking into materials that were otherwise salvageable.