How Do Professionals Clean a Sewage-Contaminated Area?

Before any cleaning begins, the pros assess the extent of the contamination. They identify the source of the sewage, whether from a backup or overflow, and determine how far the water has spread. This step helps them plan the cleanup and decide which materials can be saved and which must be discarded.

Safety comes first. The pros wear protective suits, gloves, and respirators to avoid contact with harmful bacteria and viruses. They also set up containment barriers to prevent sewage from spreading to unaffected areas of your home. You should stay out of the affected space until the pros tell you it is safe to re-enter.

• Shut off water and electricity to the area if safe
• Open windows for ventilation if possible
• Remove pets and children from the vicinity
• Avoid touching contaminated surfaces without protection

After the bulk is removed, the pros clean all affected surfaces with a detergent to break down grime and organic matter. Then they apply a disinfectant that is EPA-registered for sewage cleanup. This kills bacteria, viruses, and other pathogens that can cause illness.

Disinfection is repeated on porous surfaces like wood and drywall, which may absorb sewage. The pros may need to remove and replace these materials if they cannot be thoroughly cleaned. They also clean nearby objects, such as furniture and personal items, using methods appropriate for each material.

• Use a hospital-grade disinfectant
• Allow proper dwell time for disinfectants to work
• Clean from the least contaminated to the most contaminated area
• Dispose of cleaning cloths and mop heads after use

Once the area is dry and disinfected, the pros perform a final inspection. They look for any missed spots, check that all contaminated materials are removed, and confirm that the space is safe for normal use. They also provide guidance on what you may need to repair or replace, such as drywall or flooring.

Restoration work, like replacing drywall or flooring, is often handled by other tradespeople. The pros focus on the cleanup and disinfection, and they can advise you on next steps. For example, if you live in Fresno, keeping your shutoff valve location written down can help you act quickly during a future sewage backup.