Renton started his pottery career in England in the 1970s, and after completing his Diploma Course at Harrow Art School, returned to NZ with another Harrow student, Rosie Ewan, and they established their "Hillside Pottery" in 1975. They have been in the main retail pottery co-operatives ever since: Browns Mill, Albany Village Pottery and now Pots of Ponsonby.
Renton has taught at many night classes and pottery schools and has been a tutor at the ASP for 10 years. He is a lover of pots; simple direct pots that are useable and that hopefully will enrich the lives of both the maker and the user. He is strongly drawn to wheel-thrown, salt-glazed pottery and fires in wood and oil kilns.