Household bin collectors in east Suffolk have voted to go on strike after rejecting a pay offer.
Unison said more than 96% of East Suffolk Norse staff who are union members voted in favour of the walkout on a turnout of 88%.
East Suffolk Council said a “generous” offer had been made which in some cases would see salaries rise by 17%.
But Unison said the offer was “not enough” to cope with the rising cost of living.
No dates had yet been set for industrial action and the union said it was hoping for an improved offer to avoid strikes.