Gachet is a graduate of Shades Valley High School and earned his bachelor's degree in fine arts from Birmingham-Southern College in 1987. He worked at Maralyn Wilson Gallery for nine years and also did some remodeling work before he joined the ASFA faculty in 2002.
In the mid-1990s Gachet became interested in crows and scrapped tires, and the various issues of recycling and scavenging that connected them. He has incorporated the crow image as well as other figures into numerous large installations which also include other recycled materials such as wire and broken ceoncrete. His work has been featured at local galleries such as Bare Hands as well as at the Kentuck Festival of the Arts and Magic City Art Connection. He has been awarded prizes in juried exhibitions and received a fellowship from the Alabama State Council on the Arts. His pieces are owned by the Huntsville Museum of Art and the Southern Environmental Center at Birmingham-Southern.
In the summer of 2009 he studied under Charles Long at the Anderson Ranch Art Center in Colorado, under a fellowship from the Surnda Foundation. The experience inspired him to challenge himself and to begin working on less directly representational sculptures and installations.
- Brock, Glenny (January 21, 2010) "Beyond the crow: Randy Gachet’s new sculpture." Birmingham Weekly
- Randy Gachet website