What to Do in the First 24 Hours After a Flood in Houston

In the first 24 hours after a flood in Houston, focus on three things in order: personal safety, stopping further water intrusion, and documenting the damage before cleanup begins. Avoid contact with floodwater and electrical systems, photograph everything, and call your insurance company and a restoration professional as soon as you are safely able to. Acting within this window meaningfully reduces both the structural damage and the mold risk that comes with our hot, humid climate.

Hour One: Safety First

• Do not enter standing water if there is any chance it is in contact with electrical outlets, appliances, or a downed line. Shut off power at the breaker only if the panel itself is dry and accessible.
• Check for structural issues such as sagging ceilings, buckled flooring, or foundation cracks before walking through the home. Houston's flat, clay-heavy soil can shift after heavy saturation, so cracks that appear after a flood should be taken seriously.
• Watch for gas odors and leave immediately if you smell gas, contacting your utility provider from outside the home.
• Assume floodwater is contaminated. Storm and bayou floodwater in the Houston area commonly carries sewage overflow, chemicals, and bacteria, so wear rubber boots and gloves if you must wade through it.

Hours One to Six: Stop the Damage and Document It

Stop Additional Water Intrusion

If the source is a burst pipe or appliance rather than outside flooding, shut off the main water valve. If floodwater is entering from outside, sandbags or towels at door thresholds can slow intrusion, but do not risk personal safety trying to hold back significant flowing water.

Document Everything

• Take wide photos of every affected room, then close-up photos of specific damage.
• Record video walking through the home before anything is moved or removed.
• Note the approximate water depth using furniture or wall marks as a reference.
• Keep a written timeline of when the flooding started and when you noticed it.

This documentation is critical for insurance claims and is much easier to gather before cleanup than after.

Call for Help

Contact your insurance company to open a claim, and call a licensed water damage restoration company to begin mitigation. In Houston, many companies including ours run 24/7 emergency lines specifically because pipe bursts and storm flooding do not wait for business hours, and we provide free quotes so you know the cost before crews start extraction.

Hours Six to Twenty-Four: Begin Drying and Protect Belongings

Move What You Can

Relocate furniture, rugs, electronics, and important documents to a dry area or elevated surface. Aluminum foil under furniture legs can prevent staining on wet carpet if items cannot be moved right away.

Start Ventilation

Open windows if outdoor humidity is lower than indoor conditions, and run fans and a dehumidifier if you have one. In peak Houston summer humidity, opening windows can sometimes make things worse, so a portable dehumidifier is often the better call.

Separate Wet and Dry Items

Sort belongings into salvageable and non-salvageable piles. Photographs, important papers, and electronics often need specialized drying, while soft porous items like mattresses and upholstered furniture that were submerged usually cannot be saved.

What to Avoid in the First 24 Hours

• Do not use a household vacuum to remove standing water; it can cause electric shock and will not survive the moisture.
• Do not turn on ceiling fixtures if the ceiling above is wet or sagging.
• Do not throw away damaged items before photographing them for your claim.
• Do not wait to call for professional extraction hoping the water will simply evaporate; in Houston's humidity, it typically will not dry fast enough on its own to prevent mold.

If your home has flooded in the last few hours, our crews are available 24/7 across the Houston area for emergency extraction, and we provide a free assessment so you can move forward with confidence on both the cleanup and your insurance claim.

Frequently Asked Questions