Receiving an autism spectrum disorder (ASD) diagnosis within a family creates a variety of needs and changes the context in which parents exercise their roles within the family and society. Support networks are known to play a key protective role in safeguarding the quality of life for these families, whether they are made up of professionals (formal network) or of members of the extended family (informal network). This article examines how voluntary help and community solidarity can emerge from the community or other areas of parental life (e. g. employment, neighbourhood, social media). Semi-directed interviews were conducted with 13 families in the province of Quebec whose children received a diagnosis of ASD. The results of the qualitative analysis show that local help and solidarity play an important role in the lives of this group of families. These forms of support for parents came mainly from other parents in the same situation or on social media. These parents regard these forms of support as highly valued and conducive of the development of a bond based on identity. Discussed here are the implications for social intervention in a family context where a child has received an ASD diagnosis.