Holmes on Homes

The show's premise revolves around general contractor Mike Holmes visiting homeowners (initially in the Greater Toronto Area in the earlier seasons, but also to various locales across Canada and the United States, starting with the seventh season) who are in need of help, mainly due to unsatisfactory home renovations performed by hired contractors. A typical episode has homeowners describing their experiences with the previous contractor, including what had caused the original contractor to leave the work incomplete or with substandard work (often under Ontario building codes). Holmes would also go into detail to explain why the work he sees is substandard and needs to be replaced during the repair process. The original contractors are never named on the shows, although an episode of CBC Television's Marketplace has done investigative journalism behind a sixth-season episode and exposed the contractor alleged to have been at fault.

Source: Wikipedia.org