Yes, professional carpet cleaning is recommended every 12 to 18 months for most residential carpet. In pet households, or where children are young and spills are frequent, cleaning every six to 12 months gives better results. Professional hot water extraction removes embedded dirt and allergens that regular vacuuming cannot reach, and refreshes the pile so the carpet looks and feels closer to new. For wool carpet, always use a professional cleaner who offers a wool-safe method, as standard steam cleaning can cause shrinkage or damage to wool fibres.