The properties we live and work in are affected by what actually occurs on the premises. Death, illness, arguments, sadness and other emotions all have a particular subtle energy around them which is not pleasant or healthy to be around. Buildings absorb those energies and affect the people living in it.
Space clearing is the term given to the process of removing negative energies and returning the building to the subtle vibration experienced prior to the build-up. In more serious cases, there can be curses, earthbound spirits (ghosts) or elementals disturbing the peace. They need to be removed to help the occupants have happy and healthy lives. Geopathic stress and electromagnetic pollution can lead to an unhealthy atmosphere.