Andreas initially studied painting with V. Vlachopoulos (1982-1984). He received his BA from the School of Fine Arts (1984-1990), studying with professor P. Tetsis. During his studies, Kontellis was awarded scholarships from S.S.F. In 1993, he was awarded a three-year scholarship by the State Scholarship Foundation to develop a painting project in Greece. In 2000, on a scholarship from Athens Academy, he received Master of Art in Fine Art at London’s Middlesex University with professors John Thompson and Jim Mooney.