How Clean Is Your House? is a British entertainment/lifestyle television programme in which expert cleaners Kim Woodburn and Aggie MacKenzie visit filthy homes and then clean them. The thirty-minute show is produced by Talkback Thames, the UK production arm of FremantleMedia (itself part of the RTL Group), and airs on Channel 4 and many of its subsidiary channels. It was first broadcast in 2003 and was an immediate ratings success.