Ask This Old House

Ross Trethewey investigates a homeowner's excessive winter dry air issue and solves it by installing a whole house humidifier system; Mauro Henrique often has to paint up to 80 shutters at a time on a job, so he shares his technique for quickly painting shutters in bulk; In Build It, Tom Silva and Kevin O'Connor create a triangular top outdoor end table out of teak wood.

Kevin O'Connor teams up with wallpaper expert, Carmen Gonzalez, to help a Miami homeowner create a focal point wall with a grass cloth wallpaper; Lee Gilliam demonstrates a variety of common sprinkler heads and explains their different purposes; Richard Trethewey installs a submersible sump pump as a solution to a homeowner's flooded basement problem.

Jenn Nawada demonstrates two different solutions to solve a homeowner's gutter runoff problem by installing a dry well and a popup emitter; Ask This Old House spotlights lead carpenter Lasana Harper, who shares his journey into carpentry and how it has shaped his love for teaching; Heath Eastman helps a homeowner replace her 80's-tastic ceiling fan with a more modern option.

Nathan Gilbert transforms a homeowner's hanging bathroom medicine cabinet into a recessed medicine cabinet; Mark McCullough replaces a chimney crown that is causing water damage to a homeowner's indoor charcoal grill; Mark shows Kevin O'Connor some of the little pieces of history he's found while doing masonry work over the years.