Firefighters will hold four one-hour strikes throughout November for higher pay and safer staffing levels.
The New Zealand Professional Firefighters Union (NZFPU) said strikes would happen from 11am to noon on Friday November 4, as well as on Monday 7, Friday 11 and Monday 14.
The NZPFU and Fire and Emergency New Zealand (Fenz) have been bargaining for 16 months.
"Fenz is yet to put up a reasonable offer for settlement," the NZPFU said.
Both parties have been in a mediated facilitation process with former Employment Court Judge Graeme Colgan, whose report will be released tomorrow.