Reiki can be used to cleanse the energy of homes as well as for healing living things such as people, animals and plants. I have done a few successful house cleansings and blessings using Reiki. If there is an area of your home where people feel uncomfortable or if you are having trouble with spirits (not the alcoholic ones lol) or just find yourself arguing with loved ones for no reason then you could benefit from a house cleansing.

Reiki is not the only way to do this, if you would like some information on how to attempt this for yourself then please ask as there are several methods available to try before resorting to calling in a priest/witch/reiki practitioner etc