Why the rodents keep returning after treatment
If rodents keep returning after treatment, it usually means the entry points were never sealed or an attractant like food or garbage remains — and the landlord may need to do more than set a few traps.
A single round of traps rarely ends an infestation. Rodents come back when the gaps they use stay open, when a food or water source remains, or when only one unit is treated in an infested building. Lasting control usually means professional treatment, sealing entry points, and removing whatever is drawing rodents in.
When a landlord keeps applying quick fixes that do not work, the ongoing infestation can remain a habitability violation — the home is still not being kept free of rodents. Keep a record each time you report it and each time treatment fails. If rodents keep coming back no matter what your landlord does, a free review can help you understand your options.
This is general information about California tenant rights, not legal advice. Every situation is different.