S18 E14: Weird Shower Valve, Mossy Roof | PreviewA look at what you’ll see in this episode of Ask This Old House by This Old HouseHere’s what you’ll see in this episode of Ask This Old House:Richard replaces a shower valve; Nathan refinishes stair treads; Tom cleans off a roof.Will be live on Sunday, February 9 at 7pm.Next Up In Front Page Summer Grilling Tips Our Favorite Last-Minute Father’s Day Gifts (2025) Garage Storage Tips Cabinet Refacing: Everything You Need to Know Spring Gardening Checklist Spring Cleaning Checklist