Returning Home After a Flood: A Room-by-Room Safety Checklist

The short answer: go back only after the authorities say it’s safe, in daylight, with the electricity off at the main, and leave at once if you smell gas. Then clean room by room in gloves and boots, throw out any food the water touched, and boil your drinking water until the supply is declared safe.

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The water has gone down. The walls show a brown tide line at knee height, the doors are swollen, and there’s a smell nobody forgets. Everyone wants to rush in. Wait. The first minutes back inside are when the worst injuries after a flood tend to happen, from electric shock and gas to a sagging ceiling that gives way or a snake curled up in the cupboard where the shoes used to be.

Is it safe to go back yet?

Only when local officials, the district administration or the rescue service say your area is clear. Floodwater can rise again after fresh rain upstream, and roads that look fine may have been hollowed out underneath. Go in daylight, with one other adult, a torch (never a candle or lighter, in case of gas), a charged phone and clean drinking water.

Leave children, elderly relatives and anyone pregnant or unwell somewhere dry until the first check and the heavy cleaning are done. Mud, fumes and bleach are hard on small lungs and tired hearts.

Electricity: the first and biggest danger

Water conducts electricity, and flood mud gets inside sockets, fans, fridges and the meter board. ELI5: a wet wire is like a leaking pipe for current, and your body becomes the easiest path to the ground.

1. Main switch: if you can reach the main breaker or fuse box from a dry place, turn it off before you walk in. If reaching it means standing in water, don’t. Call the electricity company or an electrician.
2. Don’t switch on: leave every light, fan and appliance off, even if the power seems to be back.
3. Get it checked: have a qualified electrician inspect the wiring, sockets and meter before the power goes back on. Anything that was under water (fridge, washing machine, UPS, motor pump) needs a check before use.
4. Fallen lines outside: stay at least 10 metres away from any fallen wire and report it.
5. Generators: run them only outdoors, far from windows and doors, never in a room, garage or verandah.

A generator or a charcoal angeethi used indoors to dry a room makes carbon monoxide, a gas you can’t see or smell. Headache, dizziness and sleepiness in several people at once in the same room is the warning. Get everyone into fresh air and call for help.

Gas and the building itself

Sniff at the door. A rotten-egg smell or a hissing sound means a gas leak. Don’t switch anything on or off, don’t light a match, and don’t use your phone inside; go out, leave the door open and call the gas company from a distance. Cylinders that floated or fell over need checking too.

Then look at the house from outside. Warning signs are a roof that dips, walls leaning or bulging, wide new cracks running diagonally, doors that suddenly won’t close, and soil washed away from under the foundation. Kacha and mud-brick houses soften badly after days in water. Any of these signs means stay out until the local engineer, union council or relief team has checked it.

Room by room: a safety checklist

Snakes, scorpions and rats come indoors to escape the water and hide in dark, quiet places: under beds, in shoe racks, behind stacked sacks. Lift things with a long stick, not your hands, and shake out shoes and bedding. If someone is bitten, keep them still and get them to hospital fast; don’t cut, suck or tie a tight band.

Soaked mattresses, pillows, foam sofas, carpets, cardboard and stuffed toys usually can’t be made safe. Let them go.

Mud cleanup without getting sick

Flood mud isn’t ordinary dirt, because it carries sewage, animal waste, sometimes chemicals, and rat urine, the source of leptospirosis, an infection that slips in through cuts and cracked skin on the feet and hands.

1. Dress for it: rubber boots, thick rubber gloves, long trousers and sleeves. Cover any cut with a waterproof plaster first.
2. Shovel, then wash: remove mud, then scrub hard surfaces with detergent and clean water.
3. Disinfect: use household bleach diluted as the bottle says. A common mix is about one cup of bleach in a large bucket (around 20 litres) of water. Wipe, leave it wet for a few minutes, then rinse surfaces that touch food.
4. Never mix: bleach with toilet cleaner, acid, or anything containing ammonia. The fumes are poisonous.
5. Air and dry: open every window and door, run fans once the wiring is cleared, and aim to dry the house within a day or two, before mould takes hold.
6. Wash yourself: soap and clean water for hands and feet after every session, and before eating.

Mould shows as black, green or white fuzz, or a musty smell, often within a couple of days. Our guide on damp walls and mould explains what it does to breathing and how to deal with seelan once the flood has passed.

Water and food: the two rules that prevent most sickness

Food: throw away anything the floodwater touched, plus perishable food from a fridge that was off for hours. Don’t taste to test; spoiled food can look and smell fine.

Water: treat tap, well and hand-pump water as unsafe until the authorities say otherwise. Boil it at a full rolling boil for at least one minute, cool it covered, and store it in a clean container with a lid. Chlorine tablets work too; use them exactly as the pack says. Clear water isn’t the same as safe water, a point our phitkari and water piece covers. For daily feet, hand and food habits through the wet months, see our monsoon hygiene routine.

Did you know? A flooded well stays unsafe after the surface clears. It needs disinfecting first.

Mosquitoes arrive a week or two later

Standing water in buckets, tyres, pots, coolers and roof tanks turns into mosquito nurseries within days. Tip out and scrub anything holding water, cover tanks, and use nets and repellent, especially for children and older people. Dengue, malaria and chikungunya often rise in the weeks after a flood. More detail is in our Barsaat and Flood Season section.

Returning home after a flood: questions people ask