Helen's public health research has centred around three areas:
1. The effect of home warmth interventions on health. The interventions examined have been those that might feasibly be reproduced on a policy scale (insulation, sustainable heating, fuel vouchers for vulnerable people). The health consequences examined include both objective measures (e.g. doctors’ visits), and subjective measures (e.g. self-reported wellbeing).
2. Household fuel use and temperature. This includes work on fuel poverty, and drivers of fuel use as well as the spatial variation of fuel use in New Zealand.
3. The factors associated with household transience, and the location of the family dwelling. She has also done some work on homelessness.
Helen trained originally in engineering, and enjoys applying her quantitative skills in the realm of public health. She has worked on the Housing, Insulation and Health study, and the Housing, Heating and Health study; and is currently working on the Warm Homes for Elder New Zealanders study.