David is a quantity surveyor by profession, being a Member of the Royal Institution of Chartered Surveyors, and a Fellow of the Chartered Institute of Building, he joined Rand Associates in 1975 and has been involved in the maintenance of social housing for the last 25 years. He is a Liveryman of the Worshipful Company of Plumbers and a Freeman of the City of London.

David is the technical adviser to the National Housing Maintenance Forum (NHMF), co-author of the M3NHF Schedule of Rates and its associated modules, and has lectured extensively on the procurement process of social housing maintenance. David acts as the procurement advisor to a number of local authorities and housing associations for responsive, void property, gas servicing, property reinvestment works and the evaluation of existing contracts.