Moncrieff has been exhibiting since 1978 and his work is held by a considerable number of major public and private Australian collections. His academic career includes lecturing in the disciplines of print-media, drawing and painting. Until 2007 he was the coordinator of the Painting and Drawing programme at Edith Cowan University, Western Australia. He has curated several thematic exhibitions.
Moncrieff's studio work evolves directly from observed and experienced incidents which metamorphose in the studio into designed and made art objects. Recently, his practice has been non figurative - formal juxtapositions of shaped and painted industrial surfaces.
He now lives at Kentdale on the south coast of WA. He has designed and built his house, studio, shed and veggie patch. He continues to develop and evolve his art practice.