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What Should You Not Do When Your Home Floods?

Last updated October 26, 2026

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The short answer

Avoid Electrical Hazards

The first rule is to stay out of any water that might be touching electrical outlets, cords, or appliances. Water conducts electricity, and even a small puddle can carry a dangerous current. If the power is on, do not step into the water. Go to your breaker box and shut off power to the affected areas only if you can do so without standing in water.

If you cannot reach the breaker safely, wait for a professional. Never use a wet vacuum or any electrical tool in a flooded space. Also, avoid touching walls or fixtures that might be live. Your safety comes before saving belongings. Once the power is off, you can begin assessing the situation, but always assume wires are live until you know otherwise.

Wait Before Cleaning Up

It is tempting to start mopping and moving furniture right away, but you should pause. Take photos and videos of every affected area before you touch anything. This visual record helps your insurance claim, because it shows the original damage. Without it, you might miss documenting something important. Policies vary, and your insurer decides what is covered.

Also, avoid walking through the water more than necessary. Each step can spread contamination and push water into other rooms or lower levels. Wait for the water to recede naturally if it is safe to do so. If you must enter, wear rubber boots and gloves. Do not start removing water until you have a clear plan and the power is off.

  • Take photos of all wet areas and items.
  • Note the water level on walls with a pencil.
  • Keep receipts for any supplies you buy.
  • Move valuable items to a dry spot only if safe.
  • Do not turn on lights or outlets.
  • Avoid using any electrical equipment.

Do Not Turn on HVAC

You might think turning on the air conditioner or furnace will dry the house, but it can do more harm. Your HVAC system can spread water vapor and mold spores throughout the ductwork, contaminating the whole home. Running it also risks damaging the unit itself if water has gotten into the system.

Keep the system off until a professional inspects it. In St. Petersburg, the humid climate means mold can start growing within a day or two, so you need to act quickly, but not by using the HVAC. Instead, open windows if the outside air is drier, and use fans only after you confirm they are safe and the power is off.

Don't Throw Away Items Yet

It is natural to want to discard soaked carpets, furniture, and personal items, but resist the urge. Some things may be salvageable, and your insurance policy might cover cleaning or replacement. You need to document everything first. If you toss items too soon, you lose the chance to claim them.

Even if an item seems ruined, leave it in place until a professional assesses the damage. Porous materials like drywall and insulation often need removal, but a pro can decide. For sentimental items, you might be able to dry them carefully, but never put wet photos or books in a dryer. Instead, air dry them slowly, and ask a professional for advice.

Avoid Health Risks

Floodwater can contain sewage, chemicals, and bacteria. Do not let children or pets play in the water, and avoid any contact with your skin. If you have open cuts or sores, keep them covered. If you feel unwell after being in the water, see a doctor. Also, wear a mask if you are near moldy materials, as spores can irritate your lungs.

Do not eat or drink anything that might have touched the water. Throw away any food that was in the flooded area, even if it is sealed, because the water can seep under lids. After you leave the affected area, wash your hands thoroughly with soap and clean water. If you have a well, do not drink the water until it is tested. Your insurer decides what is covered if you file a claim.

  • Keep children and pets away from floodwater.
  • Wear gloves, boots, and a mask when cleaning.
  • Discard any food that may have touched water.
  • Do not use a generator indoors.
  • Wash hands after any contact with floodwater.
  • See a doctor if you feel sick.

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Frequently asked questions

Should I turn off the electricity during a flood?

Yes, but only if you can do so safely without standing in water. Go to your breaker panel and shut off the main power. If you have any doubt, wait for a professional. Never touch a wet breaker or stand in water to reach it.

Can I use a regular vacuum to remove water?

No. A regular vacuum is not made for water and can cause electric shock or damage. You need a wet/dry vacuum or a pump, and even then, you should only use it after the power is off and you are certain the area is safe. If you are unsure, call a professional.

How soon should I start drying out my home?

You should start within 24 to 48 hours to reduce mold risk, but only after you have documented the damage and ensured the power is off. Open windows, use fans, and remove standing water carefully. In humid climates like St. Petersburg, mold can grow quickly, so speed matters.

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