Allen first worked as a nightclub
disc jockey where he met long-time friend
Dale Winton and subsequently joined the
United Biscuits Network, a radio station broadcasting to workers in the
United Biscuits factories. His voice was heard in
Scotland,
Liverpool,
Manchester and
London. UBN closed in 1979, and Allen joined LBC as presenter of the
Night Extra programme. He then moved on to present
The Night is Young on the station. When LBC was separated into two stations- 1152 AM and 97.3 FM, Allen presented the afternoon show for 'London Talkback Radio' (later known as LBC London News 1152) and
Saturday Night Out. Allen has also worked for
Blue Danube Radio in Vienna, a station sponsored by the
United Nations. Allen presented the early breakfast show on LBC between 4am and 7am from Monday to Friday. On 24 February 2023, he announced that he had stepped down from LBC, after presenting his last show on 17 February. In addition to these shows, Allen pre-recorded another programme for LBC –
Steve Allen in Conversation. The final episode of this show was broadcast in spring 2020. Allen won the Gold Award at the 2016
Arqiva Commercial Radio Awards. In a
Radio Times poll that year, he was voted readers' tenth favourite male radio voice. In 2006 and 2007, he embarked on a live tour visiting theatres around the London area. In 2009 and 2010, Allen continued his sell out 'audience with' stage shows at the
Queen's Theatre in Hornchurch and at the
Mermaid Theatre in Central London. He was supported by fellow LBC presenter Anthony Davis. In February 2011, he performed again at the Mermaid Theatre, supported by mind-reader Graham P Jolley. In 2015, Allen released a book entitled
So You Want to be a Celebrity?. ==Style of radio show==