A sewer backup is one of the most stressful (and unsanitary) problems a homeowner can face. Raw sewage can damage your home, ruin your belongings, and pose serious health risks if not handled correctly. Knowing what to do immediately after can make a big difference in minimizing damage and protecting your family.
Here are the essential steps to take after a sewer backup.
1. Protect Your Health First
Sewer water contains harmful bacteria, viruses, and toxins, such as E. coli, norovirus, hepatitis, and salmonella. You need to avoid contact at all costs. If sewage backs up into your home:
- Keep children and pets out of the affected area
- Wear rubber gloves, boots, and protective clothing
- Avoid entering the space entirely if the sewage is extensive
If you feel unwell after exposure to raw sewage, seek medical care.
2. Stop Using Water in the Home
Continuing to use sinks, toilets, washing machines, or dishwashers can make the backup worse. Make sure you:
- Stop water usage immediately
- If needed, turn off the main water supply
- Avoid flushing toilets until the issue is resolved
This will prevent additional sewage from entering your home.
Note: Turn off electricity to the affected areas if needed before entering to avoid electrical shock.
3. Ventilate the Area
Sewer gases can be unpleasant and potentially harmful. If you smell foul odors in your home:
- Open windows and doors if it’s safe to do so
- Use fans to improve airflow
- Avoid breathing in fumes for long periods
Proper ventilation can also help slow mold growth.
4. Call a Professional Sewer or Restoration Company
Homeowners shouldn’t handle sewer backups on their own. Professionals have the equipment and training to handle contaminated water safely.
- Sewer cleaning specialists can locate and clear the blockage
- Restoration professionals can remove sewage, sanitize surfaces, and dry affected areas
- Early intervention helps prevent long-term damage and mold growth
Many of these services have emergency hours. The sooner you call, the better the outcome.
5. Avoid DIY Cleanup of Sewage
Household cleaners and shop vacs can’t properly sanitize sewage-contamined areas. If you experience a backup, remember:
- Improper cleaning can spread bacteria
- Porous materials (carpet, drywall, insulation) may need removal
- Professionals have industrial disinfection and drying equipment
Attempting DIY cleanup can void insurance coverage.
6. Document the Damage
Before cleanup begins (if it’s safe), take photos and videos. You should:
- Capture standing water, damaged items, and affected rooms
- Make a list of damaged belongings
- Keep receipts for emergency repairs
This documentation plays a crucial role in filing insurance claims.
7. Contact Your Insurance Company
Not all policies automatically cover sewer backups, but many offer endorsements. After experiencing a backup:
- Notify your insurer as soon as possible
- Ask about coverage for cleanup, repairs, and damaged belongings
- Follow their guidelines for claims and inspections
Even if you only have limited coverage, you should still report the incident.
8. Discard Contaminated Items
Items exposed to raw sewage may not be salvageable. You may need to get rid of:
- Contaminated food, paper goods, and hygiene items
- Porous materials like mattresses, rugs, and upholstered furniture
Follow local guidelines for safe disposal. If you’re unsure about what you can and can’t clean, consult a restoration professional.
9. Identify the Cause of the Backup
Once the immediate threat is resolved, you need to determine the cause of the backup to prevent future problems. Common causes include:
- Tree root intrusion
- Pipe collapses or cracks
- Grease and debris buildup
- Heavy rain overwhelming sewer systems
A sewer inspection can help you pinpoint the issue.
10. Take Preventative Steps for the Future
After cleanup and repairs, consider preventive measures, such as:
- Scheduling routine sewer line inspections
- Avoiding flushing wipes, grease, or debris (only toilet paper and human waste)
- Installing a backwater valve if recommended
- Addressing slow drains early
Prevention costs less than dealing with another backup.
Signs It’s Safe to Re-Enter the Area
After cleanup, you can feel safe reentering the contaminated area if:
- Air quality has been tested or properly ventilated
- All contaminated materials are removed
- Surfaces are disinfected and dried
- There are no lingering odors
Take the Right Steps if You See Raw Sewage in Your Home
A sewer backup can feel overwhelming, but taking the right steps can lessen your stress, protect your health, reduce damage, and speed up recovery. Always prioritize safety, stop water immediately, and call professionals who know how to handle contaminated water properly.
If you suspect sewer issues or want to prevent future backups, professional inspection and maintenance can give you peace of mind.
