Last year we purchased a 1930s vintage bungalow that sits on a shallow, vented, dirt-floor crawl space in a town about 20 miles inland from Myrtle Beach, S.C. It has new siding, roof and the old oil furnace was replaced with a heat pump within the past couple of years. When winter rolled around this year (yes, it does get into the 20s 'round here) we discovered that the crawl space doesn't do much to provide insulation. In fact, not only were the floors cold and the heating bills high, but the dishes stored in deep drawers of the remodeled kitchen would have worked well as chilled plates on a buffet's salad bar. An HVAC company recommended we encapsulate the crawl space, which they said would not only provide insulation but also help keep down moisture -- which is an issue here in the humid coastal south. Does anyone have information on whether this is a worthwhile (As in worth about $4,000-$5,000) approach?