The repair of a loose flagstone and installing a seamless patch to a hardwood floor.

Landscape contractor Roger Cook guides a homeowner through the repair of a loose flagstone in his mortared front walkway. Then, Roger, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, and host Kevin O'Connor ask, "What is it?" in the loft. Later, Tom guides a handy homeowner through installing a seamless patch to his hardwood floor to cover the spot where an interior wall once stood.