Wear on a cat tree is expected, but some damage affects safety. If the base shifts, a platform tilts, a post pulls away from its fitting, or the structure wobbles, stop your cat from using it until you identify the cause. Tightening the correct fastener or replacing a designed-to-be-replaced part may solve a minor issue. Follow the manufacturer’s repair guidance and do not improvise with parts that could fail.
Surface wear can often be addressed separately. A worn sisal section may be replaceable, and a removable cushion can sometimes be cleaned or renewed. Check that any repair leaves no sharp edges, loose threads, exposed staples, or small pieces a cat might chew. If the material is badly torn or the supporting structure is damaged, a patch may hide rather than fix the underlying problem.
Replace the tree when it cannot be made reliably stable, when key components are cracked, or when repair would create new hazards. Your cat’s needs may also change with age, size, or mobility. A once-loved tall tower may no longer be easy to reach, while a smaller setup might suit a new home. Inspect regularly and make decisions based on sound construction, comfortable access, and safe everyday use.