Around 1km of scaffolding was needed around the tower to carry out the repairs. It took 12 weeks alone to erect that.
Contractors are working from top to bottom removing pieces of concrete that were breaking off the structure and filling in cracks. They are then repainting around the repairs.
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Details have been released about some of the roles which will be filled by 1,000 people at the Siemens development in Hull
Paul Dadge become the unwitting face of the 7/7 rescue effort after a picture of him helping a woman in the aftermath went around the world.
London was in a celebratory mood on 7 July 2005, but everything changed when three suicide bombers attacked the capital's transport network.