In 2006 van Aggele qualified for the European LC Championships 2006 but didn't start because he had trained to hard and was too tired to compete. In Helsinki he won his first international medal with the Dutch relay team in 4×50 m freestyle finishing 3rd. At the World LC Championships 2007 he reached a 10th place in the 50 m breaststroke as best result. At the national championships in June he nominated himself for the 200 m individual medley in Beijing 2008. At the end of the year he confirmed his nomination and qualified for the games at Dutch Open Swim Cup. One week later he won a bronze medal with the 4×50 m medley team at the European SC Championships 2007 in Debrecen.