Thousands of support workers for intellectually disabled adults will strike this week after progress on a collective agreement stalled.
Workers at IDEA - the operational arm of IHC - will strike for one hour on April 27 to protest the lack of progress in bargaining for a new agreement.
E Tu union co-ordinator Alastair Duncan said 3000 workers will take part in the strike.
"Support staff spend their days enabling New Zealanders with intellectual disabilities to lead the best possible lives. In turn staff want IDEA to deliver the guaranteed and stable hours that enable the workforce to plan their own lives."
The union said at the heart of the dispute is a call by the workers to strengthen job security and health and safety rights.