Repairing backyard gate; drafty window

Landscape contractor Roger Cook makes a HOUSE call to Charleston, South Carolina, to help a homeowner repair her sagging backyard gate. Then Roger, host Kevin O'Connor, general contractor Tom Silva and plumbing and heating expert Richard Trethewey ask, "What is it?" Later, Tom helps a homeowner replace a drafty basement window. In the ASK THIS OLD HOUSE loft, Tom shows Richard how to use different types of expanding foam for insulating against drafts.