Birch was born in Southend-on-Sea, Essex, England. He played drums in various bands in the Southend area before helping to form The Kursaal Flyers in 1973. Featuring singer Paul Shuttleworth, the Flyers developed a strong live reputation on London's pub rock scene in the mid 1970s, and released several albums. Their biggest commercial success came with the uncharacteristic Mike Batt produced hit single, "Little Does She Know", in 1976, which Birch co-wrote.
After The Kursaal Flyers disbanded in late 1977, Birch formed the power pop group, The Records. They released the minor hit "Starry Eyes" in 1978, again co-written by Birch, toured the United States and recorded three albums. The Records split up in 1982.
Birch also co-wrote the song "A.1. on the Jukebox" with Dave Edmunds.
In the 1990s he moved into music journalism, writing many articles on the British music scene and, in 2000, writing an acclaimed account of the 1970s pub rock scene, No Sleep Till Canvey Island. He published a well-reviewed biography of Ian Dury, Ian Dury: The Definitive Biography in January 2010.
- "Kursaal Flyers - Home". Kursaalflyers.net. Retrieved 1 November 2018.
- "The Records Starry Eyes home of UK power pop group therecords.com". Therecords.com. Retrieved 1 November 2018.
- "Will Birch Record Production". Willbirch.com. Retrieved 1 November 2018.
- "Get Ready to ROCK! Review of book by Will Birch called No Sleep Till Canvey Island - The Great Pub Rock Revolution". Getreadytorock.com. Retrieved 1 November 2018.
- "Home Page – The TLS". Entertainment.timesonline.co.uk. Retrieved 1 November 2018.
- "No Sleep Till Canvey Island Pub Rock Will Birch Book". Willbirch.com. Retrieved 1 November 2018.