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Before the new cat arrives
Prepare a separate base room with food, water, litter box, scratching surface, and hiding options. Existing cats should keep access to their normal territory and routines.
Phase 1: scent exchange
For 2-5 days, keep cats physically separated and swap scent items such as blankets. You can also gently rub each cat with separate cloths and place those cloths near feeding zones to build positive association.
Phase 2: visual access with barrier
Use a baby gate, cracked door, or screen so cats can see each other briefly without contact. Keep sessions short and pair with treats. End before tension rises.
Phase 3: controlled meetings
Move to short supervised interactions in a neutral area. Provide high perches and multiple exits. If staring, chasing, or blocking starts, interrupt calmly and return to previous phase for several days.
Resource distribution rules
- Multiple litter boxes in separate areas
- Several feeding stations, not one shared bowl zone
- At least one elevated resting area per cat
- Duplicate scratching surfaces
How long does it take?
Some pairs stabilize in one to two weeks. Others need four to eight weeks. Progress is not linear. Temporary setbacks are normal after noisy events or routine changes.
Red flags
Persistent stalking, injuries, litter avoidance, or appetite loss require intervention. In these cases, involve your vet and a cat behavior professional to prevent chronic stress.
Related guides
Litter Box Setup | Indoor Cat Enrichment | Cat Feeding Routine
