How Do Pros Clean and Disinfect a Sewage-Flooded Space?

Your first step is to turn off electricity to the flooded area if it is safe to do so. Do not enter the space without proper protective gear, as sewage contains harmful bacteria, viruses, and other pathogens. The local water damage pros will assess the extent of contamination and damage to create a specific cleanup plan. This assessment determines which materials can be cleaned and which must be discarded. They will check the source of the backup and identify all affected areas, including hidden spaces behind walls, to ensure a complete plan is in place.

All remaining hard surfaces, such as concrete, studs, and subfloors, are scrubbed with industrial-grade cleaning agents to remove soils and residues. After cleaning, the pros apply EPA-registered disinfectants designed to kill the pathogens found in sewage, like bacteria and viruses. They follow specific dwell times, allowing the disinfectant to remain wet on surfaces long enough to be effective. This step is critical for making structural elements safe for reoccupation. The cleaning process often includes using pressure washers or steam cleaners on durable surfaces to ensure a deep, thorough clean that reaches cracks and crevices.

After drying, the pros perform a final inspection to verify the area is clean, dry, and sanitary. They may perform additional cleaning or disinfection if any areas are not satisfactory. Once verified, the space is ready for restoration work, such as rebuilding walls and installing new flooring. The goal is to return your property to a safe, pre-loss condition. You should receive documentation detailing the cleaning and drying processes for your records.