The aims of this study were to identify which factors may lead to crisis for people with dementia and their carers and identify interventions these individuals believe could help in crisis. Qualitative study using focus groups to compare the perspectives of people with dementia, family carers and healthcare professionals on causes of crises and crisis interventions. To help in a crisis, people with dementia were favourable towards support from family and friends, access to mobile phones and home adaptations to reduce risks. Carers were keen on assistive technology and home adaptation. Both carers and staff valued carer training and education, care plans and well-coordinated care. Staff were the only group emphasizing more intensive interventions such as emergency home respite and extended hours services. In terms of causes of crises, people with dementia focused on risks and hazards in their home, whereas family carers emphasized carer stress and their own mental health problems. Staff, in contrast were concerned about problems with service organization and coordination leading to crises. Physical problems were less commonly identified as causes of crises but when they did occur they had a major impact. Practical interventions such as home adaptations, assistive technology, education and training for family carers, and flexible home care services were highly valued by service users and their families during times of crisis and may help prevent hospital admissions. Specialist home care was highly valued by all groups.