Replacing an outdoor faucet; sharpening lawn mower blades

Plumbing and heating expert Richard Trethewey helps a homeowner replace his leaky outdoor faucet. Up in the loft, landscape contractor Roger Cook shows host Kevin O'Connor how to sharpen a lawn mower blade properly. Afterward, Richard, Roger and Kevin, along with general contractor Tom Silva, ask, "What is it?" Then, Tom and Kevin build custom shelving for a walk-in closet.