There are many reasons why your home can be affected by misguided energies and other forces, thereby needing a house clearing.
There are just as many reasons why smudging with white sage is not always enough. Arguments, negative self talk, violence, drugs use, stress, lethargy and even teenage angst are just some precursors to build up negative energy within the home, leaving your space feeling dense, scattered, unmotivated and often sick.
Perhaps the negative energies were present before the property was purchased or tenanted. Its also possible that violence and trauma from hundreds of years in the past can still be affecting the area today as our lives can be impacted by energy portals and vortexes and all of these scenarios can lead to energy imbalances perceptible to the residents and need a house clearing.
It is not only for those in touch with spirit who can align to this, as house clearings can easily boost the physical, emotional and mental states of your being to feel supported, nourished and clear if you are one to have more of a practical approach to energy support.