Why Campello needs this specifically
Decontaminating a Campello triple-decker after a sewage event often means coordinating disinfection across shared hallways or utility areas serving multiple units.
Shared sewer laterals in older triple-decker buildings mean a single backup or root intrusion event can flood more than one unit at once, and cross-contamination risk between units is real once black water is standing.
What to know before you call
Household disinfectants aren’t rated to neutralize sewage-borne pathogens — see the biohazard decontamination hub for the certified protocol we follow. See the full biohazard / pathogen decontamination breakdown →