Overview: Plumbing and heating expert Richard Trethewey helps a pair of homeowners with a jammed kitchen garbage disposer. Then Richard, along with host Kevin O'Connor, general contractor Tom Silva and landscape contractor Roger Cook ask, "What is it?" Then, Kevin learns from a painting expert how to remove exterior paint from cedar siding. Back in the loft, Tom and Richard show Kevin the do's and don'ts of cutting holes and notches in joists.