Outsourced health workers at Ealing Hospital in West London struck for seven days from Friday 14 March.
They are currently paid £6.31 an hour, 44% less than the lowest-paid directly-employed NHS staff. The workers are employed by Medirest, an outsourcing company which provides domestics, porters, catering workers, and other staff services. They are members of the GMB union, and have already struck for four days since the start of 2014.
Bosses have offered a pay increase to 2015, but the workers are holding out for terms closer to those of their directly-employed colleagues, including improved sick pay, which they do not currently receive.