If the water is coming from a fixture or appliance, the fastest fix is the small shutoff valve on its supply line — under the sink, behind the toilet, at the washing machine. If you can't find it or the leak is inside a wall, go to the main shutoff, usually in the basement or mechanical room where the water line enters the house. Every homeowner should be able to find that valve in the dark; if you're reading this dry, go find yours now.
Some water can't be shut off. If it's coming through a window well, a foundation crack, or up a floor drain, your job shifts from stopping to slowing: clear the window well, move what you can out of the water's path, and — if it's a drain backup — stop using water everywhere in the house, because every flush and every load feeds it.
Before you step into a wet room, think about what the water is touching. Outlets near the floor, power strips, appliance cords, the furnace, the water heater — any of these can energize standing water. If the breaker panel is dry and you can reach it without crossing water, shut off the circuits feeding the wet area, or the main if you're unsure which ones those are.
If the panel is inside the flooded area, or you'd have to wade to get to it, don't. Stay out and call your utility or an electrician. The same caution applies overhead: a ceiling sagging with water around a light fixture is a reason to leave the room, not to investigate. Nothing stored in a wet basement is worth an electrical injury.
Where the water came from decides what you can safely do next. Water from a supply line or water heater starts clean — you can work in it, move belongings out of it, and start soaking it up. Water from a washing machine or dishwasher discharge carries detergents and soils; gloves on, and keep kids and pets out.
Water from a sewer backup, or water that flowed in from outside, is contaminated — treat it as a health hazard, not a mess. Don't handle soaked belongings bare-handed, don't let anyone play or wade in it, and don't run fans that blow air from the wet area into the rest of the house. For that water, your first move is the phone, not the mop.
If the water is clean and the power situation is safe, the most valuable work you can do before help arrives is separation. Get furniture legs up on blocks or squares of aluminum foil — wet carpet will wick into wood and stain it, and wood furniture will bleed finish into wet carpet. Pull area rugs off carpet before dyes transfer. Lift boxes off the floor, starting with the bottom row you can't see into.
Move what matters most first: documents, photos, electronics, anything irreplaceable. Set wet books and papers aside rather than stacking them — stacked wet paper welds itself together. What you're doing with all of this is simple: shrinking the loss while the clock runs, so the drying effort goes to the house instead of a pile of belongings that didn't have to get wet.
Before you drain, pump, or haul anything out, take pictures — more than feels necessary. Wide shots of each affected room, close-ups of the source, the waterline on the walls, the standing water itself, and each damaged item. If a claim follows, these photos establish what happened and how bad it was at its worst — which the adjuster will never get to see in person.
Keep, don't toss. Set damaged materials and belongings aside where they can be inspected rather than hauling them to the curb, until your insurer has what it needs. Most policies expect you to prevent further damage, not to erase the evidence of the original loss — photograph first, mitigate second, discard last, and keep receipts for anything the emergency makes you buy.
By the end of the first day, the visible water may be gone and the floor may feel dry to your hand. This is the moment most water losses go wrong. The water you could see was the minority of the problem — the rest wicked up into drywall, soaked into carpet pad, and slipped into wall cavities and subfloor, where hands and eyes can't follow it.
Mold needs roughly 24 to 48 hours of sustained wetness to get established, and hidden moisture provides exactly that. The fix is measurement: moisture meters find what the towels missed, and controlled drying removes it. Call 801-433-7000 — the earlier a professional dry-out starts, the more of your home gets saved in place instead of cut out later.
If it's clean water and the electricity is safely off in the wet area — yes, every gallon you remove helps. Towels, buckets, a wet-vac if you have one. Just know its limits: you're removing surface water, not the water in the pad, walls, and subfloor. If the water is from a drain or from outside, leave it alone and keep your family away from it.
Mold generally needs about 24 to 48 hours of sustained moisture to get established, and the clock starts when the materials get wet — not when you notice them. That's why the first hours matter so much: extraction and drying that start the same day usually stay a water problem. Wet materials found days later are often a water problem and a mold problem.
Do both early, but don't wait on either to start protecting the home — most policies expect you to take reasonable steps to prevent further damage, and mitigation strengthens a claim rather than hurting it. Photograph everything, report the loss to your insurer promptly, and get drying started. The one call that shouldn't wait for business hours is stopping the water and starting the dry-out.
Does homeowners insurance cover water damage in Utah? What most policies cover, what they exclude, and how flood insurance differs. Flood 801: 801-433-7000.
Read the guide →How structural drying works: evaporation, dehumidification, moisture meters, and why a house that feels dry often isn't. From Flood 801 in Utah. 801-433-7000.
Read the guide →One call gets a crew moving and drying started. There is no fee to be matched.
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