How to repair stripped threads on a radiator, stabilize a wobbly newel post and refinish an old cast-iron bathtub to make it look like new.

In the loft, plumbing and heating expert Richard Trethewey shows host Kevin O'Connor how to repair stripped threads on a radiator using a drill and "tap." Landscape contractor Roger Cook helps a homeowner solve a grading problem that is causing rot on the side of her house. Then Richard and Kevin, along with general contractor Tom Silva, ask, "What is it?" Next, back in the loft, Tom shows Kevin how to stabilize a wobbly newel post. Lastly, Kevin and a specialist help a homeowner refinish her old cast-iron bathtub and make it look like new.