Season 21 - Episode Guide

The Ask This Old House team talks about why they enjoy working together; Richard cuts open a failed water heater, and Jenn shares her love of educating kids about the outdoors. Then, she and Nathan build a compost bin.

Watch as Heath explains the different levels of EV chargers and their benefits. Mark shows different brick patterns, and Nathan repairs a cracked china cabinet with MDF. Then, Mauro repaints it.

In this episode, Heath installs a doorbell with new wiring, Richard explains bottle traps, and Mark replaces a homeowner's brick driveway edging with cobblestones.

Jenn plants a native woodland garden; Mauro shows how to patch cracked or chipped porcelain; Mark explains common chimney problems and then shows how to repair a chimney step by step.

Watch as Kevin learns about what goes into restoring historic wallpaper. Then, Heath explains GFCI receptacles, and Tom helps a homeowner repair and repitch their gutters.

In this episode, Mark McCullough travels to Dallas, Texas, to repair sandstone steps. Then, Ross Trethewey explains how to pick a solar plan without being scammed by the company. Finally, Nathan Gilbert helps a homeowner install an awning.

In this episode, Richard Trethewey replaces a hot water tank, and Heath Eastman shares safety tips for hanging electric holiday decorations. Later, Tom Silva explains how to repair woodpecker damage. Finally, Mauro Henrique helps a homeowner paint bathroom tile.

Kevin and Tom build a Little Free Library for an elementary school; Tom recruits his daughter, Kate, to paint it; Tom and Kevin then install the library with some help from the students.

The team share what professions they might have pursued outside of their chosen trades; Mauro Henrique discusses different types of wallpaper and demonstrates what tools to use to remove it; Heath Eastman explains how different amped receptacles can cause breaker trips; Nathan Gilbert upgrades a kitchen by helping a homeowner install kitchen cabinet hardware.

Nathan Gilbert and his dad, Bill, help a homeowner install an 1800s pocket door with reclaimed hardware; Ross Trethewey explains the technological advancements of induction cooktops compared to electric and gas stovetops; Kevin O'Connor travels to Atlanta to meet maker Char Miller-King, discuss her projects and how she teaches woodworking, and build a Shaker-style-inspired end table together.

Nathan Gilbert, Heath Eastman, and Mauro Henrique help a homeowner babyproof her house by testing for lead, testing smoke detectors, replacing old receptacles with tamper-resistant ones, and installing cabinet locks and baby gates; Jenn Nawada breaks down the basics of caring for houseplants; Richard Trethewey explains how septic systems works, how they can fail, and how to maintain them.

In a special episode of Ask This Old House, the team partner with Rebuilding Together Boston. First, the team learn about the program and the home they will be working on. Then, the crew reach out to the Ask This Old House extended family to gather volunteers to aid with each project. With everyone's help, the crew repair a deck, construct a patio, and install landscape lighting and new plantings.

Repairing a deck; constructing a patio; installing landscape lighting and new plantings; installing a firepit.

Repairing an antique window; interior paint finishes; developing a landscape design for a small backyard; installing a stone fire pit.

Organizing a shed; the importance of yearly service checks for furnaces; installing a pea stone walkway to match an existing walkway at the front of a house.

Exploring wetlands; indoor air quality testing; repainting an exterior concrete foundation.

Upgrading a fireplace; different landscape tools and how to maintain them for spring; building a bathtub tray out of zebrawood.

Replacing a leaking gas oven; creating a pollinator garden at home; applying wireless electricity technology to electric vehicle chargers in future homes.

Insulating an attic; irrigation repairs; adding an asphalt parking spot.

Planting a sun and shade garden; the importance of gutter downspouts; adding street visibility to a farm by remounting an original farm sign and engraving an 1800s granite post.