What to Do After Water Damage in Your Home: The First 24 Hours

Short version, because you don't have time to read a whole article right now: stop the water, kill the power to wet rooms, get everyone away from standing water, take photos of everything, call your insurance company, and call a restoration crew to extract the water and start drying. The drying part is the one with a clock on it — mold can start inside 24 to 48 hours, and once it does, the repair gets bigger and the claim gets messier. Below is the same thing with the detail you'll want once the adrenaline drops.

What should you do first after water damage in your home?

Shut off the water at the source or main valve, then cut power to any flooded rooms at the breaker. Move people, pets, and small valuables to a dry area. Photograph everything before you touch it, then call a restoration company and your insurer the same day.

That's the priority order, and the order matters. People first, then the source of the water, then the electricity, then proof, then the phone calls. If the water is still running — a supply line, a toilet, an appliance hookup — find the shutoff for that fixture first. Most fixtures have a valve within a few feet: under the sink, behind the toilet, behind the washer. If you can't find it or it won't turn, shut off the main where the water line enters the house, usually in the garage, a utility closet, or near the water heater. Out at the curb there's a meter box with a shutoff too; a meter key or even a large adjustable wrench will turn it.

Electricity is the part homeowners underestimate. Standing water plus a live outlet or a wet light fixture is the actual danger in the first few minutes — not the water. If water is anywhere near outlets, switches, or the panel, switch off those circuits at the breaker. If the panel itself is wet, or you'd have to stand in water to reach it, don't. Call an electrician or the utility. No carpet is worth that.

The first 24 hours, step by step

Once people are safe and the water and power are off, here's the rest of the day in order. You don't need special equipment for any of this — a phone, some towels, and a little furniture-moving covers it.

How long do you have before water damage gets worse?

You have about 24 to 48 hours before standing water turns into mold growth and structural rot. Drywall wicks moisture upward within hours, and soaked carpet pad rarely dries on its own. The faster a crew extracts the water and sets dryers, the less your home loses.

The 24-to-48-hour window is the industry rule of thumb — the EPA's mold guidance and the widely used S500 water-restoration standard published by the IICRC both treat that range as the line where a wet building becomes a mold problem. In North Texas summers, when indoor humidity sits high without air conditioning running, treat the short end of that range as the real number. Drywall is the part that catches people off guard: it doesn't just get wet where the water touched it, it pulls moisture up the sheet like a paper towel, so the visible water line on the wall is usually six to eighteen inches lower than the actual wet zone.

The other thing that changes the clock is what kind of water you're dealing with. Clean water from a supply line is one situation; water that's been sitting, or that came from a drain, sink overflow, or the ground outside, is a different one entirely — both in how fast it causes problems and in what's safe to handle yourself.

Does homeowners insurance cover water damage in Texas?

Most Texas homeowners policies cover sudden, accidental water damage — a burst pipe, a failed water heater, or rain through a storm-damaged roof. Gradual leaks, surface flooding, and damage from deferred maintenance are usually excluded. Open the claim within 24 hours and keep every photo and receipt.

The dividing line your carrier cares about is "sudden and accidental" versus "gradual." A pipe that lets go overnight is covered. A pipe that's been dripping behind a cabinet for eight months — and the rot and mold that came with it — usually isn't, because the policy expects you to fix maintenance problems before they cause damage. Flooding from outside the home (a creek, street runoff, storm surge) is excluded from standard policies entirely; that needs separate flood insurance through the National Flood Insurance Program. Wind-driven rain that gets in through a roof the storm just damaged is generally covered — the damaged roof is the "sudden" part.

A few things make claims go faster. Open it the day it happens. Document before you clean — that walkthrough video matters here. Keep receipts for anything you buy (a wet vac, fans, a hotel) and anything you throw out. Don't let anyone tell you to delay mitigation while you "wait for the adjuster" — your policy actually requires you to take reasonable steps to prevent further damage, and a good restoration company writes the scope and moisture documentation your adjuster needs anyway. If the damage forces you out of the house, ask about Additional Living Expenses (ALE) coverage — hotel, meals, pet boarding — which a lot of homeowners never claim. The Texas Department of Insurance has consumer guides on all of this, and Ready.gov covers the flood-insurance side.

What not to do after water damage

The mistakes that cost homeowners the most aren't dramatic — they're small things done in the first hour.

• Don't wait it out. "It'll dry on its own" is how a one-room job becomes a four-room job with mold in the walls. Carpet pad and drywall almost never dry on their own fast enough.
• Don't throw things away before you photograph them. Damaged furniture, soaked rugs, ruined electronics — your carrier may reimburse you, but only with proof of loss. Once it's at the curb, there's no proof.
• Don't run the HVAC if water got into the ducts or the air handler. You'll spread moisture and, if mold has started, spores through the whole house. Shut it off and mention it to the restoration crew.
• Don't use a household shop vac on Category 2 or 3 water. You'll aerosolize contaminated water and you won't extract enough to matter. That water needs proper extraction equipment.
• Don't assume the visible water is all the water. It's under the flooring, inside the wall cavities, and in the subfloor. Moisture meters find it; eyeballs don't.

When to call a professional vs. handle it yourself

A cup of clean water from a tipped vase? Towels and a fan. A bathroom that overflowed and you caught it in two minutes? You can probably manage that with a wet vac and good airflow, as long as you check behind the baseboards a day later for lingering damp. Anything beyond that — water across more than one room, water that's been sitting more than a few hours, water that touched drywall or carpet pad, anything involving a drain or sewage, or any situation where you're not sure how far it spread — is a call. The reason isn't just the equipment; it's the moisture mapping and the documentation. A restoration crew measures what's actually wet, dries to a verified standard, and hands your adjuster a file that gets the claim approved. Guessing at it usually means either over-demolishing or, worse, sealing damp materials back up and finding mold in three weeks.

If you're in Fort Worth, Arlington, North Richland Hills, Hurst, Bedford, Euless, Grapevine, Keller, or anywhere else in DFW, Coyote Restoration runs water mitigation, drying, mold remediation, and the rebuild afterward with one in-house crew — so it's one company and one insurance scope from the day of the loss to the day you sign off. We answer the phone 24 hours a day.