The club was formed in 1946 during the significant settlement of the area in the post-war era; mostly by young families attracted by the affordable new housing on offer.
Since returning to the Swindale Shield Wainuiomata have won the Hardham Cup twice - in 2007 where they upset Oriental-Rongotai and again in 2010 when they defeated Avalon - and were runners-up to Upper Hutt in 2006 and Tawa in 2008.
The 2014 season was a stellar year for the club making its first appearance in the premier competition's Jubilee Cup Final against fierce local rivals, Hutt Old Boys-Marist.
The club maintains close links with Wainuiomata High School providing a pathway into senior rugby.
Local boys Tana Umaga and Neemia Tialata both played their senior club rugby at neighbours Petone, mostly during the period when Wainuiomata were outside the Premier ranks.