Walsh was born in Worcester. In 1992 she obtained a BA (Hons) degree in Fine Art from De Montfort University in Leicester. She subsequently spent several years teaching art in London, before moving to Cornwall in 2011, taking studio space at Krowji, The Old Grammar School, Redruth. Graduating with a Distinction from the MA Fine Art: Contemporary Practice course at Falmouth University in 2013, where she was recipient of the Sandra Blow award, she moved into working with digital video installation. She is an active member of the CMR Gallery in Redruth and exhibits regularly.