Season 18 - Ask This Old House Episodes

Nathan shows Kevin some old drywall paneling he found, and 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.

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

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.

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

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

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.

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

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

Ross tests out some new smart lighting configurations, while Tom helps a homeowner build a custom screen door. Richard gives general advice on maintaining a washing machine, and Mauro teaches a homeowner techniques to paint old 1960s wood trim with a varnish on it.

Jenn travels to Washington D.C. to see the Cherry Blossom Festival and then plants a cherry tree; Mark learns about how Mount Rushmore was built and demonstrates various techniques for cutting stone; Nathan visits Abraham Lincoln’s house. Then, he helps a homeowner to replace his traditional mortise hardware with hardware that locks.

Watch as Tom teaches a young woodworker how to use power tools, and Richard installs a gas lantern.

Jenn plants an indoor garden; Richard demonstrates how and why frozen pipes burst; Tom discusses hole saws; Mark replaces a hearth.

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.

Nathan tightens an old, loose stair railing; Mauro demonstrates how to strip paint off of old door hardware; Heath explains the uses and purposes of different electrical boxes; Richard replaces an old thermostat with a smart thermostat.

Nathan Gilbert demonstrates a sanding kit with different profiles; Heath Eastman installs ceiling lights for a homeowner; Mark McCullough explains the purposes and uses for different types of trowels; Tom Silva and Kevin O'Connor build a tool storage shelf out of leftover lumber.

Kevin O'Connor works with maker Jenn Largesse; Jenn Nawada revives a stoop; Heath Eastman adds a fireplace insert.

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

Cable railing; PVC to vent gas appliances; Upgrade a door; Painting vinyl shutters.

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

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

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

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

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

Jenn plants a garden; Richard reconnects a radiator; Mark replaces a fireplace surround.

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

Nathan installs a barn door; Tom compares roofing materials; Mark installs a dry well