The frequency of window cleaning can vary based on several factors, including location, weather conditions, and personal preferences. However, as a general guideline, it’s recommended to clean your windows at least twice a year.  

If you live in an area with many trees, or dust is a problem, you may need to clean your windows more frequently, perhaps every two to three months.  

For businesses, especially those with storefronts, clean windows are crucial for maintaining a professional appearance. Therefore, monthly cleanings might be necessary.  

Inside your home, windows usually don’t get as dirty as the exterior, so once or twice a year should suffice.  

Remember, regular window cleaning not only enhances your view and the aesthetics of your home or business but also helps to extend the lifespan of your windows by removing harmful elements like dirt and mildew.