Entomologist and pest control contractor Steve Marken takes us on a termite-damage tour of the house, pointed out the conditions that led to the original infestation. Out back, Roger Cook shows us the drywell and drainage pipe system he's installed to handle the water problem. The This Old House team work with excavator Jim McLaughin as they try to pull out the old galvanized water service, with a new copper pipe attached to the end, to replace the old pipe without having to dig up the front lawn. Homeowners Sue Denny and Christian Nolen experiment with exterior paint colors on the side of the building - our host advises them to consult with historic paint expert Andrea Gilmore. Inside, homeowner Christian learns the effect, or lack thereof, of the skylight he's considering installing over the central stairway.