On 27 January 2007, along with Craig Botterill, he was consecrated bishop by the primate, John Hepworth, assisted by Peter Wilkinson and Robert Mercer.

This made him a suffragan bishop of the Anglican Catholic Church of Canada and in charge of the province of Ottawa.

In November 2011, Reid became assistant bishop of the Anglican Catholic Church of Canada's pro-diocese of Our Lady of Walsingham, composed of clergy and parishes which were preparing for entry into the future Personal Ordinariate of the Chair of Saint Peter.

[3] Reid became dean of Saint John the Baptist Church and rector of the Congregation of the Annunciation of the Blessed Virgin Mary.

[5] On 21 April 2023, the Holy See announced that the pope had accepted Reid’s resignation (at the age of 72) effective 1 July.