Ask This Old House

Nathan installs a barn door; Tom compares roofing materials; Mark installs a drywell.

Mauro paints a nursery; Richard tests a new dryer; Tom and Kevin build a record stand.

Richard installs a ductless humidifier; Ross discusses electric bills; Jenn installs a planter.

Tom repairs a built-in with hand tools; Heath Eastman installs a light in a dining room.

Tom checks out a women's only DIY class; Jenn plants a terraced garden.

Heath installs a light switch, Ross explores affordable geothermal drilling techniques.

Richard replaces piping; Ross discusses indoor air quality; Tom quiets a squeaky door.

Tom installs a cable railing; Nathan upgrades a door; Mauro paints vinyl shutters.

Mark restores a beehive oven; Richard repairs a toilet; Tom works with maker Jimmy DiResta.

Kevin works with maker Jenn Largesse; Jenn revives a stoop; Heath adds a fireplace insert.

Heath installs a ceiling light; Mark discusses trowels; Tom and Kevin build a storage rack.

Nathan travels to a Sears kit house to tighten a stair railing; Mauro demonstrates how to strip paint off hardware; Heath explains electrical boxes; Richard installs a smart thermostat.

Richard travels to Salt Lake City to replace an unusual shower valve; Nathan demonstrates how to refinish stair treads; Tom helps a homeowner remove moss from his roof.

Jenn installs an indoor garden to grow vegetables year round; Richard demonstrates how and why frozen pipes burst; Tom explains the basics of using a hole saw; Mark replaces a hearth with slate tile.

Nathan demonstrates a mobile CNC router; Tom teaches a young woodworker; Heath explains how to wire a portable generator; Richard installs a gas lantern; and Ross gives an update on an app.

Jenn visits Washington's Cherry Blossom Festival and plants a tree; Mark learns how Mount Rushmore was built and shows stone cutting; Nathan visits Abe Lincoln's house then replaces mortise hardware.

Ross tests out smart lighting; Tom helps a homeowner build a custom screen door; Richard gives advice on maintaining a washing machine; Mauro shares techniques to paint old 1960s wood trim.

Kevin works with Jenn Largesse to demonstrate a technique on a trim router; Heath grounds an outlet; Mauro explains paint rollers and demonstrates rolling techniques; Mark replaces fireplace doors.

Richard helps a homeowner replace components of his pedestal sink; Heath discusses bathroom vent fans; the team shares home inspection nightmares; Tom explains how to clean dirty tile grout.

Mark helps a couple install a concrete paver patio; Jenn discusses the common elements she includes in outdoor kitchen designs; Tom and Kevin build a combination bench/shoe rack out of fir decking.

Tom explains the architecture, installation, and maintenance of white cedar shingles; Richard repairs a hose spigot; Jenn builds and plants a self-watering vegetable garden.

Richard tests a faucet; Mark installs a mantel; Ross and Mauro discuss why and how to remove a cigarette smell from a home; Heath connects 4 separate switches that control 6 lights in the same room.

Nathan installs bypass doors for a pantry; Richard tests different smart automatic water shutoff valves; Ross explores asphalt roof shingles that can reflect some of the sun's heat.

Kevin learns how quartz countertops are manufactured and installed; Nathan explains how to hang and display a U.S. flag; Tom and Jenn split firewood; Mark installs a firepit that comes in a kit.

Nathan shows Kevin some old drywall paneling he found; Richard teaches a homeowner how to clean her shower cartridge; Tom teaches Kevin the basics of using a lathe and then they turn a bowl together.