[en] Surveys of radon in homes need to have a clear purpose and be executed in an effective manner. In the UK, surveys are designed to identify the most affected homes in the simplest way. The programme is based on measurements provided free to homeowners by Government. Contact with homeowners is exclusively through the National Radiological Protection Board. The nature of the work imposes stringent requirements with regard to clarity of communication, quality of operation, and confidentiality of information. The magnitude of the task - with above 75,000 new participants in the programme each year -requires considerable effort and streamlined procedures. (author)