Aim: The aim of this study was to explore healthcare professionals' experiences of working with extended home visits for parents. Background: It is essential to identify parents, both expectant and with a newborn child, who need support in their parenting abilities at an early stage because children's health and well-being are affected by their home environment as well as by their parents' health and social relationships. Home visits represent a cost-effective way of identifying and supporting families with a newborn. Further research is needed to explore healthcare professionals' experiences working with extended home visits for parents. Methods: This was a qualitative interview study focusing on an intervention introduced in the Enhanced Parenting - Extended Home Visits project in Sweden. Data were collected via 13 semi-structured interviews with healthcare professionals who provide the intervention in antenatal care (midwives) and child health care (CHC nurses and family supporters), and a qualitative content analysis was performed. Findings: Data analysis resulted in one theme and four categories. The theme - to provide multidimensional adapted professional support, - and the four categories - strengthened collaboration between professionals enriches their work. Home visits provide time for conversation, which promotes continuity of care and relationships with parents; being humble guests in parents' homes provides insight; and home visits provide the opportunity to strengthen parenting and participation in the family centre. The goals of the Enhanced Parenting - Extended Home Visits project were to strengthen parents' confidence in their parenting abilities and to build trusting relationships with healthcare professionals. The conclusion of this study, from the participants' perspective, is that these goals can be achieved with the intervention. Implications for Practice: Extended home visits seem to help healthcare professionals provide collaborative, multi-professional support for parents, both expectant and with a newborn child, with unique support needs.