 An increasing emphasis is being placed on preventative healthcare in the NHS National Health Service. Screening programmes currently exist in many clinical areas including diabetic retinopathy as well as breast cancer, cervical cancer and cardiovascular disease. In many contexts the benefits of health screening are well documented, but concerns exist about the effectiveness and cost-effectiveness of such programmes as uptake to screening may be very poor in some, generally hard to reach, communities. There are many ways of trying to encourage participation in health promoting activities and it is likely real shifts in behaviour will only come about with a mix of strategies. In this study we set out to see if we can improve screening rates in London, which has both high and low levels of deprivation and specific populations with poor attendance. The ultimate success of a high-quality screening program depends on the uptake rate of the population and novel solutions are required to meet the challenge of achieving this. 