The short answer
Health Risks of Raw Sewage
Raw sewage carries pathogens like E. Coli, hepatitis A, and salmonella. Touching contaminated water or surfaces can lead to skin infections, stomach illness, or respiratory issues. Even dried sewage dust can be harmful if inhaled, so do not sweep or vacuum the area yourself.
The moisture and organic material also feed mold growth, which can appear within a day or two. Mold spores worsen allergies and asthma. If you feel unwell, see a doctor. For your safety, leave the space and ventilate it by opening windows if weather permits.
- Wear rubber boots and gloves if you must enter
- Do not touch your face or eat near the affected area
- Keep children and pets out of the basement
- Open windows to reduce fumes, but do not stay inside long
- Wash any exposed skin with soap and clean water right away
Structural and Fire Hazards
Sewage water can soak into drywall, insulation, and wood framing, weakening them over time. It can also reach electrical outlets, wiring, or appliances. That combination of moisture and electricity creates a shock risk, so do not step into standing water near any powered device.
The backup itself may come from a clogged main line or a failing pump. If the water level rises, it can damage your water heater, furnace, or washer. A plumber or electrician should inspect those systems before you turn anything back on.
Why Professional Cleanup Matters
Cleaning sewage is not like mopping a spill. The pros use industrial-grade disinfectants, air movers, and moisture meters to remove contamination from porous surfaces. They also know how to safely dispose of affected materials like carpet and drywall.
Attempting cleanup on your own can spread pathogens deeper into your home. Local water damage pros have the equipment and training to contain the area, extract water, and dry the space thoroughly. Their work usually involves removing and replacing damaged materials, not just wiping surfaces.
Steps to Take Right Now
Turn off the electricity in the basement if you can reach the breaker without walking in water. Shut off the main water valve if the backup is ongoing. Do not flush any toilets or run sinks, as that can worsen the overflow.
Document the damage with photos and notes for your insurance company. Policies vary, and your insurer decides what is covered. Keep records of what you see, but leave cleanup to the pros. Your main job is to stay safe and prevent further water entry.
Preventing Future Backups
A sewage backup often happens after heavy rains overwhelm the city sewer system or when tree roots block your lateral line. A backwater valve on your main drain can stop water from flowing back into your basement. A plumber can tell you if your home needs one.
If you live in a warm, humid area, keep your shutoff valve location written down. Also avoid flushing wipes, grease, or paper towels, which are common clog causes. Regular inspections of your sewer line can catch root intrusion or cracks before they become a mess.
Talk to someone now
Every hour counts once water gets into floors and walls. One call starts the response.
Call Now (727) 308-5518Frequently asked questions
Can I clean up sewage backup myself?
It is not recommended. Raw sewage contains infectious germs that can survive on surfaces for days. Without proper disinfectants and protective gear, you risk serious illness. The pros have the right tools and training to remove contaminated materials safely.
How long does sewage cleanup take?
The time depends on the size of the affected area and how much water is present. A small backup might take a few days, while a larger one can take a week or more. Drying and mold prevention are key parts of the process.
Will my insurance cover sewage backup damage?
Policies vary, and your insurer decides what is covered. Some home insurance policies include sewage backup coverage as an add-on, while others exclude it. Review your policy documents or talk to your insurance agent to understand your specific situation.