Barnet Council workers in north London were set to strike for 48 hours from Monday of next week against privatisation of services.
Outsourced workers often end up out of work as jobs are moved elsewhere.
Workers held a solid two-day strike at the beginning of this month.
Unison union branch chair Helen Davies spoke to Socialist Worker in a personal capacity. She said, “We urge people to support our picket lines and join our strike rally.”
The Unite union has called a march against Tory-run Bromley Council’s outsourcing of services in south London.
It follows a three-week wave of strikes.