What to Do if Sewage Backs Up in Your Home

A sewage backup is one of the most stressful and hazardous plumbing emergencies a homeowner can face. Not only is it messy and unpleasant, but raw sewage contains harmful bacteria and contaminants that can pose serious health risks. Knowing how to respond quickly—and correctly—can help minimize damage, protect your family, and get your home back to normal faster.

 Immediate Steps to Take During a Sewage Backup

 Stop Using Water Immediately

The first and most important step is to stop all water usage in your home.

• Do not flush toilets
• Avoid running sinks or showers
• Turn off appliances like dishwashers and washing machines

Continuing to use water will only worsen the backup and push more sewage into your home.

 Turn Off Electricity (If Safe)

If sewage water is pooling near electrical outlets or appliances:

• Shut off power to the affected area from your breaker box
• Avoid stepping in standing water until power is off

 Safety tip: If you're unsure or conditions are unsafe, call an electrician before attempting this step.

 Evacuate the Affected Area

Keep family members and pets away from contaminated areas. Sewage water contains:

• Bacteria
• Viruses
• Parasites

Limit exposure as much as possible until cleanup begins.

 Call a Professional Plumber Immediately

Sewage backups are not DIY-friendly emergencies. A licensed plumber can:

• Identify the root cause (clog, tree roots, pipe collapse, etc.)
• Use professional equipment like drain cameras and hydro jetting
• Safely remove blockages and restore proper flow

Pro tip: Look for plumbers who offer emergency services for faster response.

 Cleaning Up After a Sewage Backup

 Contact a Water Damage Restoration Company

While a plumber fixes the issue, a restoration team can:

• Safely remove contaminated water
• Sanitize and disinfect affected areas
• Dry out your home to prevent mold growth

This step is crucial for protecting your home’s structure and indoor air quality.

 Dispose of Contaminated Materials

Items that have absorbed sewage water often cannot be salvaged, including:

• Carpeting and padding
• Upholstered furniture
• Drywall and insulation

Porous materials can harbor bacteria even after cleaning.

 Thoroughly Clean and Disinfect

Non-porous surfaces should be:

• Scrubbed with appropriate cleaning solutions
• Disinfected using EPA-approved products
• Always wear protective gear such as gloves, boots, and masks if you are involved in cleanup.

 Common Causes of Sewage Backups

Understanding the cause can help prevent future issues. Common culprits include:

• Clogged Sewer Lines: Grease, wipes, and debris buildup
• Tree Root Intrusion: Roots invading underground pipes
• Damaged or Collapsed Pipes: Often due to age or ground movement
• Heavy Rainfall or Flooding: Overwhelms municipal sewer systems
•  How to Prevent Future Sewage Backups
• Install a Backwater Valve: This device prevents sewage from flowing back into your home during heavy rains or sewer overloads.
• Schedule Routine Drain Inspections: Annual plumbing inspections can catch small issues before they become costly emergencies.
• Be Mindful of What You Flush

Only flush:

• Toilet paper
• Human waste

Avoid flushing wipes, feminine products, paper towels, or grease.

 Maintain Your Sewer Line

If your home has older pipes, consider:

• Regular cleaning (hydro jetting)
• Pipe inspections with a camera
• Replacing aging sewer lines if needed

 Does Homeowners Insurance Cover Sewage Backups?

Coverage varies depending on your policy.

• Standard policies may not cover sewage backups
• You may need a sewer backup rider or endorsement

Check with your insurance provider to ensure you're properly protected.

A sewage backup is a serious issue that requires immediate action, professional help, and proper cleanup. Acting quickly can reduce damage, prevent health risks, and save thousands in repair costs. With the right preventative measures in place, you can also significantly reduce the chances of it happening again. Schedule a mainline video inspection with Plumbline Services and a technician will show you the condition of your sewer line. Learn more about our emergency Plumbing Services.