Concealing retaining walls; quieting PVC plumbing vents

Landscape contractor Roger Cook helps a pair of homeowners improve the appearance of an unsightly concrete retaining wall with wooden lattice and climbing vines. Roger, plumbing and heating expert Richard Trethewey, general contractor Tom Silva and host Kevin O'Connor ask, "What is it?" Next, up in the loft, Tom shows Kevin how to flash a newly installed window properly. Then, Richard helps a homeowner quiet a noisy PVC plumbing vent in her attic.