More than 100 council workers are set to strike on four separate days in the coming weeks.
Housing repair workers in Haringey who are members of union Unite are set to walk out over pay.
A total of 125 employees will strike on September 25, as well as on October 2, 9 and 16.
It comes after they rejected the national pay offer for local government staff, which would have seen pay increase by £1,925 for the next financial year.
Unite claims that the offer amounts to a real terms pay cut and that councils are able to award their workers more than the local government pay increase.
But Haringey Council has claimed that as the strike relates to a national pay dispute, it is a process in which it has "no direct role".
It comes just months after the union’s survey of more than 1,400 members in local government found that nearly half (48%) have struggled to pay their utility bills.
Almost a quarter (23%) claimed they were skipping meals to save money, and 6% had been forced to use food banks.
Unite general secretary Sharon Graham said: “Our members provide critical frontline council services.
“Despite the essential roles they undertake, their employer thinks it is acceptable to propose what amounts to yet another real terms pay cut, at a time when they increasingly can’t make ends meet.”
Unite regional officer Simon McCartney said: “The proposed strike action will inevitably cause major disruption across the three boroughs, but this dispute is the fault of local government employers who are failing to value workers and properly reward them for their hard work.”
Cllr Sarah Williams, Haringey Council's cabinet member for housing services, private renters and planning said: “We value our staff and strive to be a fair and welcoming employer, and we recognise that this industrial action is largely a response to the cost-of-living crisis impacting workers across the country.
“This strike comes during a major investment and improvement programme aiming to deliver a high-quality housing repairs service.
"We apologise to all our tenants and leaseholders and want to reassure them we will be doing all we can to minimise the knock-on effect on our residents during the four strike days.”
A further 120 housing repair workers will strike in Southwark on the same dates as those in Haringey.
In Newham, 105 refuse workers will walk out for four weeks starting on Monday (September 25).
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