Nathan travels to Birmingham, Alabama to install a sliding barn door in an open-concept loft apartment. Tom compares the qualities of different types of roofing materials. Ross explains the culprit behind damaged solar panels and how to prevent future damage. Mark installs a dry well for a homeowner with drainage issues in his backyard.

Mauro paints a baby’s nursery using zero VOC paint. Richard tests out a new dryer that uses a heat pump to dry the clothes. Tom and Kevin build a record player stand out of oak plywood.

Mark replaces a homeowner's sloppy fireplace surround with a clean, thin brick veneer.

The uses and purposes for different types of screws. Installing a whole house ductless humidifier. Changes to electric bill payment structures. Installing a front entry planter.

Repairing an old dining room built-in with hand tools. Home inspection nightmares. Installing a chandelier in a dining room.

A women's only do-it-yourself class; selecting and installing plants for a terraced garden; how homeowners and contractors should communicate about expectations for home improvement projects.

Replacing a standard toggle switch with an antique push button switch; affordable geothermal heat pumps.

Indoor air quality; replacing polybutylene piping with conventional PEX; drop cloths; different methods for silencing a squeaky door.

Replacing a stair railing; upgrading a door to make it look more modern; cleaning and painting vinyl shutters.

Restoring a beehive oven; failure points in toilet tanks and how to repair them; building a metal coat rack.

Building a hexagon planter; reviving a stoop; home inspection nightmares; installing an electric fireplace insert.

Installing a ceiling light; installing the temperature rating system for ceiling lights; the uses for different types of trowels; building a tool storage shelf.

Nathan tightens a railing; Mauro strips paint off hardware; Richard upgrades a thermostat.

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.

Planting an indoor garden; the basics of using a hole saw; replacing a common terra cotta hearth with slate tile.

Using a mobile CNC routing machine; building a dog dish stand using power tools; different methods for wiring a portable generator to a house.

The Ask This Old House team travels to and appreciates different national parks and makes a few house calls.

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.

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.

In this episode, 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.

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.

In this episode, 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 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, and Tom and Jenn split firewood. Then, Mark installs a fire pit that comes in a kit.

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.