On 6 and 7 August RMT members employed by Churchill to clean the Tyne and Wear Metro struck again for 48 hours.
The long-running dispute has now seen cleaners take five days of strike action.
They are demanding living wages (they are currently paid minimum wage, and have not been offered a pay rise for this year), free travel passes, access to a pensions scheme, and an end to victimisation.
The action on 6 and 7 August was described as rock solid. Workers also organised a lobby of Nexus, the Tyne and Wear transport authority (made up of local councillors).