Cleaners in the GMB union protested at the College of North East London in Tottenham on Friday of last week.
The workers are paid the minimum wage.
They are building the union against bosses’ plans to stop paying them outside of term time—a cut of 23 percent.
GMB also called the action as part of Living Wage week.
The campaign is raising key environmental issues
Boris Johnson is in trouble but still pushing vicious laws
We need struggle to crash their party
Findings of a government survey