- Richard Trethewey (Himself)
- Norm Abram (Himself)
- Roger Cook (Himself)
- Kevin O'Connor (Host)
- Tom Silva (Himself)
- Steve Thomas Rooney (Himself)
Ask This Old House — S18E14
Episode: Weird Shower Valve; Mossy Roof
Air Date: 2020-02-08
Runtime: 30 min
Overview
Richard replaces a shower valve with a conventional pressure balanced one, Nathan demonstrates how to refinish stair treads, and Tom removes moss from a roof in the latest episode of Ask This Old House.