The aim was to explore informal carers' perceptions of supporting the everyday life of a relative who has a psychiatric disability and resides in supported housing (SH). A qualitative study based on interviews with 12 informal carers was performed, and the data was analyzed with qualitative content analysis. The theme "Navigating in a misty landscape when striving to support a relative with a psychiatric disability" was identified, encompassing four categories pertaining to residents' needs, collaboration, environmental issues and the carer's situation. SH services can be enhanced by addressing informal carers' experiences and developing greater collaboration involving informal carers, residents and staff.