Keith runs the Grinter Glass studio in Whangarei, where his focus is on developing his glass blowing skills, particularly the shard pick-up technique. He works in a range of media including painted and blown glass, painting and sculpture. His paintings on canvas and glass are often based on blind contour drawings made while walking. The concept of drawing while walking was developed for his Master's degree as a means to investigate the everyday. Keith exhibits in throughout New Zealand including Te Papa, Pataka and Sarjeant galleries. He was the winner of the 2015 Northland Business Excellence Awards, Creative industries.