The study examined the relation between older adults’ trust beliefs in nursing home carers (NHCs) and adjustment to residential care. Seventy-six older adults (mean age = 83 years, standard deviation = 7 years from UK nursing homes completed standardised scales of trust beliefs in NHCs and adjustment to residential care (satisfaction with care-giving, social engagement in the nursing home, loneliness and a latent measure). As expected, trust beliefs in NHCs were linearly associated with adjustment to residential care on all measures. There were quadratic relations between trust beliefs in NHCs and on given measures of adjustment to residential care (latent measure, satisfaction with care-giving and loneliness). Adults with very high and those with very low trust beliefs in NHCs showed depressed levels on those measures of adjustment to residential care relative to older adults with the middle range of trust beliefs. The research highlights the importance of older adults’ trust beliefs in NHCs for adjustment to nursing homes. The findings show though, that older adults who hold very high, as well those who hold very low, trust beliefs in NHCs are at risk for lower levels of adjustment.