Sixth-form provision was at Coleg Gwent in Crosskeys and Ystrad Mynach College.
Pupils from Oakdale and Pontllanfraith Comprehensives transferred into Islwyn High School.
The school experienced difficult times, however, under the leadership of Chris David, dramatic improvements were made in a short time period.
Information Technology training at Oakdale Comprehensive was commended by the Secretary of State for Wales, Paul Murphy at Welsh questions in the House of Commons in March 2009.
The headteacher retired before the opening of Islwyn High but other senior leaders continued with their roles at the new school.