What to Do Immediately After Your Basement Floods

The short answer

Safety First

Your safety comes before everything else. If water has reached electrical outlets, appliances, or your breaker panel, do not enter the basement. Turn off the main power from a dry location, or ask an electrician to do it. Standing water can hide sharp objects, chemicals, or structural hazards, so wear rubber boots and gloves if you must wade.

If you smell gas or hear a hissing sound, leave immediately and call the gas company from outside. Do not light candles or use any open flame. If you feel unwell or dizzy, see a doctor as soon as possible. Basement floods can introduce contaminants, so treat the water as potentially unsafe until you know its source.

Stop the Water Source

Once you are safe, find out where the water is coming from. If a pipe burst, shut off your main water valve. If you live in Kirkland, keep your shutoff valve location written down and easy to find. For heavy rain or groundwater, you may not be able to stop the flow, but you can move items out of the way.

If you have a sump pump, check that it is working. If the flooding is from a backed-up sewer, avoid flushing toilets or running water until the issue is resolved. Do not attempt to repair a broken pipe yourself if you are unsure how; a plumber can handle that safely. Your main goal is to reduce the amount of water entering your basement.

Locate your main water shutoff valve and learn how to turn it off.
If safe, unplug appliances and electronics from outlets.
Move furniture, boxes, and rugs to higher ground.
Do not enter water if you suspect electrical hazards.
Take photos or videos of the flooding and damaged items.
Open windows for ventilation if it is safe to do so.

Protect Your Belongings

Act quickly to save what you can. Move furniture, electronics, and important documents to a dry area, preferably on a higher floor. If items are too heavy, focus on the most valuable or sentimental things. Do not try to salvage soaked mattresses or upholstered furniture; they are hard to dry and may harbor mold.

For wet documents and photos, place them in plastic bags and freeze them if you cannot dry them right away. This preserves them for later restoration. Do not throw away anything until you have documented it for your insurance claim. Your insurer will want a list of damaged items, so keep a notebook or spreadsheet as you go.

Document the Damage

Before any cleanup begins, take clear photos and videos of the floodwater, the affected areas, and every damaged item. Capture close-ups and wide shots. This evidence is crucial for your insurance claim. Write down the date and time of the flooding, and note the water level and how long it lasted.

Do not start throwing things away until you have a record. Your insurance company may require an inspection before you discard anything. Keep receipts for any supplies you buy, such as gloves or a wet-dry vacuum. Policies vary, and your insurer decides what is covered. Check your policy to see what documentation you need to provide.

Begin Drying and Cleanup

The longer water sits, the more damage it causes. Start removing water with a wet-dry vacuum or a pump if the water level is low. Use towels and mops for small amounts. Open windows and doors if the weather permits, and run fans or a dehumidifier to dry the air. Do not use your central heating or air conditioning until the area is dry, as it can spread moisture.

You may need professional help for large floods or if water has soaked into walls, floors, or insulation. Local water damage pros can extract standing water and set up structural drying equipment. They can also assess hidden moisture and prevent mold growth. If you have extensive damage, consider contacting them early to avoid further issues.

Related services that can help include emergency water extraction, structural drying and dehumidification, and flooded basement cleanup. These address the immediate needs after a flood and help restore your basement to a safe condition.

Frequently asked questions

How long can I wait before cleaning up a flooded basement?

Do not wait. Mold can begin growing within 24 to 48 hours, and water soaks into porous materials quickly. Start removing water and drying as soon as it is safe. If you cannot handle the cleanup alone, contact the pros right away to minimize damage.

Should I turn off the electricity in a flooded basement?

Yes, if water is near any electrical outlet, appliance, or wiring. Do not enter the basement until the power is off. If you cannot reach the breaker panel safely, call an electrician to do it. Never touch electrical equipment while standing in water.

Can I dry out my basement myself or do I need professional help?

Small spills or minor seepage can be handled with fans and a wet-dry vacuum. But if water has soaked into drywall, insulation, or carpet, professional extraction and drying are often needed to prevent mold and structural damage. The pros have specialized equipment to dry hidden areas.