

Ask This Old House
Season 21
TV-G
Tom Silva, Richard Trethewey, Roger Cook and host Kevin O'Connor, the experts of Ask This Old House, travel the country making house calls in order to answer homeowner questions and everyday home improvement projects.
Where to Watch Season 21
26 Episodes
- EV Chargers, China Cabinet RepairE2
EV Chargers, China Cabinet RepairHeath explains the three levels of EV chargers and which scenarios they work best for; Mark breaks down different brick patterns, where they originate from, and their pros and cons; Nathan helps a homeowner repair a cracked built-in china cabinet using MDF panels; Mauro then repaints the china cabinet and shows how to paint on MDF. - Wallpaper Restore, Gutter RepairsE5
Wallpaper Restore, Gutter RepairsKevin O'Connor visits the Franklin Pierce Homestead in New Hampshire to learn about the restoration of a historic, French wallpaper from the 19th century; Heath Eastman explains the basics of GFCI receptacles; Tom Silva helps a homeowner repair and repitch the gutters above their back patio. - Paint Bathroom Tile, Hot Water Tank ReplacementE7
Paint Bathroom Tile, Hot Water Tank ReplacementRichard helps remove an old 40-gallon hot water tank; Heath shares safety tips for holiday light decoration; Tom explains how to identify, repair, and prevent woodpecker damage; Mauro shows how to paint over bathroom tile using epoxy acrylic paint. - Install Cabinet Hardware, Breaker TripsE9
Install Cabinet Hardware, Breaker TripsThe team shares the professions they might have pursued; Mauro discusses types of wallpaper and tools to remove it; Heath explains how different amped receptacles can cause breaker trips; Nathan helps install kitchen cabinet hardware. - Antique Pocket Door, Shaker End TableE10
Antique Pocket Door, Shaker End TableNathan and his dad, Bill, help install an 1800s pocket door with reclaimed hardware; Ross explains the technological advancements of induction cooktops; Kevin meets maker Char Miller-King and build a Shaker-style-inspired end table together. - Baby Proofing, Septic SystemsE11
Baby Proofing, Septic SystemsNathan, Heath, and Mauro help a homeowner baby proof her house by replacing old receptacles and installing cabinet locks, and baby gates; Jenn breaks down the basics of caring for houseplants; Richard explains how septic systems works and maintain them. - Fire Pit Plan, Window RestorationE13
Fire Pit Plan, Window RestorationTom repairs a homeowner's antique window; Mauro talks through interior paint finishes; Jenn and Mark travel to Georgia to help a homeowner develop a landscape design plan for her small backyard. Then, they help her install a stone fire pit. - Dimmer Switch Troubleshooting, Clothes RackE14
Dimmer Switch Troubleshooting, Clothes RackHeath Eastman helps a homeowner troubleshoot why her dimmer switch is causing her track lights to flicker, and assists in fixing the issue; Tom Silva and Kevin O'Connor build DIY-friendly clothes rack out of 1x4" maple and furniture bolts. - Shed Organization, Pea Stone WalkwayE15
Shed Organization, Pea Stone WalkwayNathan heads to Texas to help a mom of six organize her family shed; Richard emphasizes the importance of a yearly service call for furnaces; Mark installs a pea stone walkway to match an existing walkway in front of the homeowner's house. - Fireplace Painting; Bathtub TrayE17
Fireplace Painting; Bathtub TrayMauro helps a homeowner upgrade a fireplace; Jenn introduces landscape contractor Lee Gilliam, and together they discuss different landscape tools and how to maintain them for Spring; Tom and Kevin Build a bathtub tray out of zebrawood. - Oven Ventilation; Wireless EV ChargerE18
Oven Ventilation; Wireless EV ChargerRichard helps a homeowner replace a leaking gas oven; Jenn and Kevin discuss how to create a pollinator garden at home; in Future House, Ross learns how wireless electricity technology can be applied to electric vehicle chargers in future homes. - Attic Insulation, Asphalt Parking SpotE19
Attic Insulation, Asphalt Parking SpotRoss helps a homeowner dealing with ice dams decide whether to insulate from his attic roof rafters or the attic floor; Richard shares tips on irrigation repairs; Mark expands a driveway by adding an asphalt parking spot. - Transition Garden, Granite Post SignE20
Transition Garden, Granite Post SignJenn helps a homeowner transform a small sun and shade backyard with a new garden; Tom explains the importance of gutter downspouts; Mark adds street visibility to a farm by remounting an original farm sign and engraving an 1800s granite post. - Cold Water Bathtub, CornholeE22
Cold Water Bathtub, CornholeRichard helps a homeowner dealing with cold bath water by installing a reserve tank to fill the bathtub fully with hot water; Mauro shares his favorite tips for cleaning up after painting projects; Tom and Kevin work together to build a set of cornhole boards and after, the Ask This Old House cast come together for a head-to-head cornhole tournament. - Flagstone Repairs, Tub DiverterE23
Flagstone Repairs, Tub DiverterRichard troubleshoots why a homeowner's shower leaks when the tub is running and makes the necessary repairs, then in studio, Richard explains why it was a unique repair; Heath deep dives into different wire gauge sizes and the electrical load capabilities of each size; Mark helps a homeowner repair some loose flagstone steps in his entryway and in his basement. - Hand-Turned Spindle, ReplicationE24
Hand-Turned Spindle, ReplicationTom Silva is rarely stumped. But when a homeowner reached out about a missing hand-turned spindle in the staircase of her 1900s Queen Anne Rowhouse, Tom attempts to replicate the spiral-detailed spindles on his lathe. There, he turns straight grain fir balusters and troubleshoots a string technique to replicate the spiral detailing. - Circuit, Table Saw, Fireplace InsertE25
Circuit, Table Saw, Fireplace InsertHeath helps a homeowner whose kitchen breaker trips when the basement humidifier is running by installing a new basement circuit; Tom showcases the importance of table saw safety by demonstrating safety techniques for the most common sources of table saw injuries; Richard helps a homeowner supplement their homes heating by installing a wood burning insert into their drafty fireplace.