Ministry of Deliverance
If you are experiencing strange phenomena that you find disturbing, you may find it helpful to talk to your local vicar. He or she will be able to pray with and support you; they may then decide, in discussion with you, that it would be helpful to involve a member of the clergy who is specifically trained and experienced in the ministry of deliverance.
In this diocese there is a team of people appointed by the Bishop, who have accumulated experience and training in the ministry of deliverance.
In the first instance please contact Bishopsgrove.
There's also more information on the Church of England website here.