General contractor Tom Silva helps a homeowner remove a vinyl kitchen floor. Then host Kevin O'Connor tours a well-stocked architectural salvage yard for vintage house parts. Back in the workshop, Kevin and Tom, along with landscaping contractor Roge... (more)r Cook and plumbing and heating expert Richard Trethewey ask, "What is it?" Afterward, Richard helps a homeowner eliminate a gurgling sound coming from his bathroom plumbing.