The purpose of this report is to summarise the findings of a customer engagement trial in Chelmford, Essex, which is part of Essex and Suffolk Water’s long-term water efficiency programme. 5,000 customers were mailed an application pack in 2006-2007, which included 19 water-saving products and services. Out of 5,378 customers contacted, 1,073 households completed the audit and were fitted with water-saving products and services. Based on information from meters and data loggers, the project resulted in average savings of 13.85 litre/property/day. This equates to a total saving of 0.015 Ml/day for the project study area.