Professional Insight: The frequency of professional cleaning for your home largely depends on various factors such as the size of your home, the number of occupants, pets, and your lifestyle. Generally, it is advisable to schedule a professional cleaning service like NOVA CLEAN in Birmingham once a month to maintain a high level of cleanliness and hygiene. For homes with pets or children, or for individuals with allergies, bi-weekly cleanings may be more appropriate to ensure the environment remains healthy and allergen-free.