Two hundred GMB members employed by ISS at Queen Elizabeth Hospital in Woolwich, South London have voted for strikes to end two-tier conditions in NHS.
The dispute is for the same pay rates, weekend enhancements and unsocial hours rates as the staff directly employed by the Trust.
The GMB members are employed as cleaners, security, ward hostesses, caterers, on the switchboard and as porters.
On 23 September GMB organised a protest outside the bondholders meeting of the PFI operator for the hospital.
ISS workers, which includes cleaners, security, ward hostesses, caterers, switchboard operators