Nominated for their DIY deficits by family, friends or colleagues, the participants are put though their paces at the Handyman Rehabilitation Centre - a dilapidated apartment complex in Toronto. Each Handyman and their nominator is assigned an apartment where they will execute all of the individual reno tasks. And outside, the participants must work together as a team to complete a variety of landscape challenges.

Each of the five new bumbling builders is charged with the task of building a shed. Sounds easy, doesn’t it? But this is no ordinary shed – building a luxury eco shed from scratch is the ultimate battlefield for these tool-challenged handymen.

This time, instead of remodelling (demolishing?) units in an apartment block or constructing environmentally-friendly sheds, these hopeless handymen will tackle the unique DIY challenges associated with renovating a 100-year-old house, including plastering, plumbing, custom furniture and even electrical.

Season 4 brings together five of the country's most hapless handypeople and gives them the opportunity to 'fix up' a 100-year-old country lodge near Huntsville, Ontario.

A new class of disastrous DIYers have moved into Reno Rehab, this time renovating a frat house in a southern Ontario university town.