You've got a problem with something in your home, and you need it fixed -- fast! But who do you call? And who can you trust? In a special one-hour edition of Marketplace, Tom Harrington tests the skills and ethics of home repair services. Among Canadians' top complaints: overcharging, suggesting or performing unnecessary work and shoddy quality. We put home service trades-people to the test, in a house wired up with hidden cameras. We watch them while they work on what should be a fairly simple repair job -- only to get charged for unnecessary work. And you won't believe what happens when we call them on it.