Abstract The present study describes the use of recasts by early childhood education and care (ECEC) professionals in five ECEC centres in France, and their effects on children’s language production – particularly on the phonological and morphosyntactic levels. We adopt a multimodal approach, taking into account recasts conveyed by vocal and visual modalities. The ECEC setting offers a complex interaction framework with more multiple and intertwined conversations than dyadic interactions. We aim to answer two questions: to what extent do the recasts of ECEC professionals contribute to the co-construction of meaning and discourse, and how do they constitute favourable contexts for children to experience the situated use of formal and functional linguistic features? Our results, based on 135 interactional sequences and qualitative analysis, show that under certain conditions, recasts are an efficient professional practice for scaffolding language acquisition and for involving children as active participants in dyadic interaction.