Ask This Old House features some familiar faces, including Kevin O'Connor, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, and landscape contractor Roger Cook—and we make house calls!
In Tool Lab, Nathan explains the options available on drill drivers; Heath describes why and how to use a voltage tester; Mauro holds a paintbrush; Mark helps a homeowner extend her existing patio.
S20E9 23 min