Building repairs vs. your belongings
The landlord is generally responsible for repairing a burst pipe and the resulting damage to the building. Damage to a tenant's personal belongings may be covered by the tenant's renters insurance, or by the landlord if the landlord's neglect caused the burst.
Fixing the pipe and repairing the walls, floors, and other parts of the unit falls to the landlord as part of maintaining the property. For a tenant's own belongings, renters insurance often steps in first. But if the burst happened because the landlord ignored a known problem — such as old, failing pipes they were warned about — the landlord may be responsible for those losses too.
Sorting out who pays can get complicated, which is why documentation matters. Keep photos of the damage, your written reports, and receipts for anything you replace. If a burst pipe caused major losses and your landlord's neglect may be to blame, a free review can help you understand your options.
This is general information about California tenant rights, not legal advice. Every situation is different.