Who covers biohazard cleanup and repairs
The landlord generally pays for professional sewage cleanup and the plumbing repair, because sewage backups involve the building's plumbing and create a health hazard the landlord must address.
Sewage cleanup is not an ordinary mop-up. It often requires professional biohazard cleaning to safely remove the contamination and disinfect the area, which is the landlord's responsibility as part of keeping the home sanitary. Simply wiping it up leaves germs and odor behind.
Damage to a tenant's personal belongings may be covered by renters insurance, or by the landlord if their neglect caused the backup. Keep dated photos and a list of anything contaminated and discarded, along with any receipts. If your landlord is refusing to arrange proper cleanup or trying to push the cost onto you, a free review can help you understand what is fair.
This is general information about California tenant rights, not legal advice. Every situation is different.