What to do when a monsoon floods your house?
Shut off power to the flooded rooms, get everyone out of the standing water, and photograph everything before you touch it. Then call a restoration crew. Las Vegas monsoon water is contaminated, and mold begins in 24 to 48 hours.
Why homeowners call us first
Monsoon water is Category 3
It crossed a street, a yard and a storm drain to reach you. Treat it as contaminated: porous material it touched comes out, it does not get dried and reused.
Caliche is why it floods here
The cemented caliche layer under the valley is nearly impermeable. Rain does not soak in — it runs off, fast, toward the lowest opening in your house.
July to September is the window
Monsoon storms are short and violent. An inch in under an hour overwhelms drains built for a desert, and the valley's washes fill in minutes.
Your first hour, in order
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Get out of the water
Standing water plus outlets, appliances or a submerged panel is an electrocution risk. If the breaker panel is not safely reachable while dry, do not reach it — leave and call the utility.
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Kill the power to affected rooms
Only if you can do it without standing in water. Then leave those circuits off until a professional says otherwise.
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Do not drive or walk through it
Six inches of moving water takes an adult off their feet, and a foot of it floats most cars. Most monsoon deaths in southern Nevada are people entering the water, not water entering homes.
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Photograph and video everything
Before you move a single item. Water lines on walls, every room, the source of entry, and your damaged belongings. This is the evidence your flood claim is built on.
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Call a restoration crew, then your carrier
The crew stops the damage from getting worse — which your policy requires you to do — and produces the documentation your carrier will ask for anyway.
Frequently asked questions
Is monsoon flood damage covered by homeowners insurance?
No. Water entering your home from outside is a flood, and standard Nevada homeowners policies exclude it. You need NFIP or private flood insurance — and because those policies typically carry a 30-day waiting period, they have to be in place before monsoon season, not during it.
Why does Las Vegas flood when it rains so little?
Because the ground cannot absorb it. Caliche — a hard, cemented calcium-carbonate layer sitting just under the desert soil — is close to impermeable, and the valley slopes. So instead of soaking in, monsoon rain becomes fast-moving surface runoff that heads downhill and collects against whatever is in its way, including your garage door.
When is monsoon season in Las Vegas?
July through September, with August typically the worst month. These are not long soaking rains — they are short, intense cells that can drop an inch of water in half an hour over one part of the valley while another part stays completely dry.
Can I clean up monsoon flood water myself?
You should not. Monsoon runoff has crossed roads and yards and often mixes with sewer overflow, which makes it Category 3 water — contaminated. It needs PPE, professional extraction, disinfection and removal of the porous material it soaked. A shop vac and a mop spread the contamination around.
How long do I have before mold starts after a flood?
24 to 48 hours, and flood water accelerates it because it delivers organic material along with the moisture. If your house flooded yesterday and it is still wet today, mold is already establishing inside the drywall — whether or not you can see anything yet.
What should I do about my car if it flooded?
Do not start it. Water in the engine or the electrical system turns a repairable car into a total the moment you turn the key. Photograph it where it sits and call your auto carrier — flood damage to vehicles falls under comprehensive auto coverage, which, unlike your homeowners policy, does generally cover it.
Water spreading right now? Don't wait it out.
Mold can start growing in 24 to 48 hours. Every hour of standing water costs you more drywall, more flooring, and more of your insurance claim. Call now — we answer live, day or night.
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