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What to Do After a Sewage Backup

By 24 Hours Water Damage Restoration Queens NY · Updated July 2026

A sewage backup is a health emergency, not just a mess. The water is contaminated with bacteria and pathogens, so the priority is keeping everyone safe and getting certified help — not cleaning it yourself.

1. Keep People and Pets Away

Do not walk through sewage water. Keep children and pets out of the affected area entirely. The contamination can cause serious illness through contact or inhalation.

2. Stop Using Water

Avoid running sinks, toilets, tubs, and appliances that drain into the affected line — it can make the backup worse.

3. Shut Off Power If Safe

If it's safe to reach the panel without touching water, turn off electricity to the affected area.

4. Don't Try to Clean It Yourself

Household tools and a wet vac can't safely handle contaminated “black water,” and improper cleanup leaves harmful bacteria behind and spreads it through your home. Porous materials that soak up sewage usually can't be saved and must be removed and disposed of properly.

5. Ventilate If You Can

Open windows in the area if it's safe, to reduce odor and fumes — but don't spend time in the contaminated space.

6. Call for Biohazard-Safe Cleanup

A certified crew contains the area, removes the sewage and contaminated materials, disinfects every surface, deodorizes at the source, and dries the structure to prevent mold. They'll also document everything for your insurance claim.

Dealing with water damage in Queens right now? Our IICRC-certified crews are available 24/7, usually on-site within the hour.

Call (347) 594-1175

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Frequently Asked Questions

Is sewage backup water dangerous?+
Yes. It's contaminated “black water” carrying bacteria and pathogens. Keep people and pets away and let certified technicians handle the cleanup safely.
Can I clean up a sewage backup myself?+
No. Household tools can't safely handle contaminated water, and improper cleanup spreads harmful bacteria. Porous materials that soaked up sewage usually must be removed by professionals.
Is sewage backup covered by insurance?+
It depends on your policy. Many backups are covered only with a specific sewer-backup rider, so check your coverage. We document the cause to support your claim.
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