[1] He studied and worked with Karl Parsons and Henry Holiday before going into partnership with Victor Drury.
In the 1940s to the early 1960s, Armitage was the chief stained glass designer for James Powell and Sons.
During his career he designed and made stained glass works for churches and cathedrals.
Armitage studied under Karl Parsons and from 1920 to 1924 was his assistant stained glass painter.
Starting in 1930, Armitage worked as a stained glass artist at 43-45 Blenheim Crescent in North Kensington in London.