Born in Athens in 1966. Studied Sculpture at the Athens School of Fine Arts where he specialised in the techniques of casting, ceramics, engraving, woodwork, metalwork, welding et al. He has had a successful collaboration with the Sydney School of Fine Arts in Australia. His work has been exhibited in various galleries, museums and private collections in Greece and abroad.

Gavalas currently works for the Ministry of Culture in Athens at the Archeological Receipts Fund, in the service of the Greek archeological museums, where he produces casts and true replicas from original ancient artifacts and contributes towards the conservation of Acropolis monuments.