[5] He has a commitment to traditional Anglicanism and Fenwick has played a significant role in the continuation of the Free Church of England, which adheres to the doctrines and practices of classical Anglicanism.

As a Church of England priest, Fenwick worked within Lambeth Palace serving as Ecumenical Secretary to two Archbishops of Canterbury and worked as co-secretary to the international Anglican-Orthodox dialogue.

[7] Having served in the Church of England at the beginning of his career, Fenwick left the Established Church after general synod voted for holy orders to be open to women.

[9][10] In early 1991, whilst Assistant Secretary of Ecumenical Affairs to the Archbishop of Canterbury, Fenwick contacted Arthur Ward, bishop of the Southern Diocese, regarding partnership between the established Church of England and the Free Church of England.

[13] Fenwick has authored several theology works including: This article about an English bishop or archbishop is a stub.