Synopsis

Landscaping specialist Roger Cook collaborates with a couple to transform an unappealing concrete retaining wall, adding wooden lattice and climbing vines for a more inviting look. Afterward, Cook joins Richard Trethewey, general contractor Tom Silva, and host Kevin O'Connor as they ponder, "What is it?" Climbing the stairs to the loft, Tom demonstrates the proper flashing technique for a newly installed window. Finally, Richard assists a homeowner in quieting a noisy PVC plumbing vent within he