G M Piling were engaged to design and install 529 No. 400mm diameter and 406 No. 450mm diameter load bearing CFA piles to depths of between 15.00m and 23.90m within stiff London Clay, for the construction of four tower blocks. The site was piled from 2 different platform levels. A total of 9 No static load tests were undertaken successfully – of which two were preliminary test piles in advance of the main works. Utilising our high-powered torque rig we were able to bore through concrete obstructions to a max of 2.00m thick. This saved the Client extensive programme, time and money.