Pittsburgh's combined sewer system, managed by ALCOSAN, carries both stormwater and raw sewage in the same pipes. During heavy rain events, the system overflows and sewage backs up through basement floor drains and fixtures in thousands of homes. The problem intensifies in older neighborhoods like Lawrenceville, Polish Hill, and Bloomfield, where clay sewer laterals installed before 1950 crack and collapse. Tree roots infiltrate these cracks, creating blockages that force sewage back into your basement. Emergency sewage cleanup demand spikes during spring thaw and summer thunderstorms when the system cannot handle the volume.
Reliance Water Damage Restoration Pittsburgh has worked in every neighborhood from the North Hills to the South Hills. We understand how elevation affects drainage patterns and which areas face the highest backup risk during storm events. Our technicians know Pennsylvania building codes for vapor barriers, drainage systems, and antimicrobial treatments. We coordinate with Pittsburgh Water and Sewer Authority when municipal system failures cause backups, ensuring proper documentation for potential claims against the authority. Local expertise matters when you are dealing with raw sewage remediation in a city with infrastructure challenges this complex.