is a British entertainment/lifestyle television programme in which expert cleaners Kim Woodburn and Aggie MacKenzie visit dirty houses and clean them up.

[1] The thirty-minute show was produced by Talkback Thames, the UK production arm of Fremantle (itself part of the RTL Group), and aired on Channel 4 from 2003 to 2009.

Accompanied by a dramatic score of horror movie music, Woodburn and MacKenzie explore the house on their own, examining the extent of the mess and looking for any particularly horrible areas.

During the cleaning, MacKenzie takes swab samples from the filthiest areas of the house and has them analysed in a lab, often revealing numerous kinds of bacteria, frequently E. coli and Salmonella.

The show makes a point of thoroughly cleaning carpets and furniture the resident owns, and not replacing dirty or worn items just for the sake of the final reveal.

In contrast, MacKenzie (whose previous jobs included associate editor in Good Housekeeping and working for MI6[5]) assumes the more serious "dirt detective" role, performing such tasks as the bacterial analysis.

While cleaning, both wear industrial white suits and rubber gloves adorned with marabou feathers and fake gemstones.

In addition, the two-week "check-up" was omitted from the show's formula, but Kim and Aggie undertook a roadshow style appearance in each episode where they would meet members of the public to answer questions and offer cleaning tips.

In November 2009, Channel 4 announced that they had decided to end the series after six years as part of its ongoing "creative renewal" for programming.

A United States version, also starring Kim and Aggie, premiered in September 2004 on the Lifetime network and ran for two seasons.