The BEST episodes of Ask This Old House season 21
Every episode of Ask This Old House season 21, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Ask This Old House season 21!
The crew at This Old House take on some pretty big projects, which means they can only work on one or two houses a year. But homeowners have a virtual truckload of questions on smaller projects, and the TOH crew is ready to answer. Ask This Old House solves the steady stream of home improvement problems faced by viewers - and the crew even makes house calls!
#1 - Flagstone Repairs, Tub Diverter
Season 21 - Episode 23 - Aired 5/18/2023
Richard 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.
Watch Now:Amazon
#2 - Shed Organization, Pea Stone Walkway
Season 21 - Episode 15 - Aired 3/23/2023
Nathan 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.
#3 - Fire Pit Plan, Window Restoration
Season 21 - Episode 13 - Aired 2/2/2023
Tom 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.
Watch Now:Amazon
#4 - Circuit, Table Saw, Fireplace Insert
Season 21 - Episode 25 - Aired 6/15/2023
Heath 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.
#5 - Neighbors Helping Neighbors
Season 21 - Episode 12 - Aired 1/26/2023
In a special episode, the team partner with Rebuilding Together Boston. With the help of the Ask This Old House extended family and volunteers, the crew repair a deck, construct a patio, and install landscape lighting and new plantings.
#6 - Sandstone Repair, Awning Installation
Season 21 - Episode 6 - Aired 11/3/2022
Mark travels to Dallas, Texas to repair sandstone steps; Ross explains how to pick a solar plan how to avoid being scammed by a solar company; Nathan helps a homeowner install an awning.
#7 - Antique Pocket Door, Shaker End Table
Season 21 - Episode 10 - Aired 1/12/2023
Nathan 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.
#8 - Cold Water Bathtub, Cornhole
Season 21 - Episode 22 - Aired 5/11/2023
Richard 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.
#9 - Doorbell Retrofit, Driveway Edging
Season 21 - Episode 3 - Aired 10/13/2022
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.
#10 - Woodland Garden, Chimney Repairs
Season 21 - Episode 4 - Aired 10/20/2022
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.
#11 - Wallpaper Restore, Gutter Repairs
Season 21 - Episode 5 - Aired 10/27/2022
Kevin 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.
#12 - Paint Bathroom Tile, Hot Water Tank Replacement
Season 21 - Episode 7 - Aired 11/10/2022
Richard 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.
#13 - Water Heater Autopsy, Composting
Season 21 - Episode 1 - Aired 9/29/2022
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.
#14 - Little Free Library
Season 21 - Episode 8 - Aired 11/17/2022
Tom and Kevin team up to build a Little Free Library for an elementary school; Tom and his daughter, Kate, paint and decorate it to look like a school bus. Tom and Kevin meet up with students to help them install it and add their favorite books.
#15 - Full Sun Garden, Radiator Floor Patch
Season 21 - Episode 21 - Aired 5/4/2023
Jenn creates a thoughtful backyard entrance; Mark shares how to safely clean hardscaping on different types of common hardscape materials; Tom shows how to patch holes in wood floors caused by previously removed radiators.
#16 - EV Chargers, China Cabinet Repair
Season 21 - Episode 2 - Aired 10/6/2022
Heath 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.
#17 - Transition Garden, Granite Post Sign
Season 21 - Episode 20 - Aired 4/27/2023
Jenn 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.
#18 - Baby Proofing, Septic Systems
Season 21 - Episode 11 - Aired 1/19/2023
Nathan, Heath, and Mauro 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 breaks down the basics of caring for houseplants; Richard explains how septic systems works, how they can fail, and how to maintain them.
#19 - Hand-Turned Spindle, Replication
Season 21 - Episode 24 - Aired 5/25/2023
Tom 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.
#20 - Install Cabinet Hardware, Breaker Trips
Season 21 - Episode 9 - Aired 1/5/2023
The 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.
#21 - Fireplace Painting, Bathtub Tray
Season 21 - Episode 17 - Aired 4/6/2023
Mauro 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.
#22 - Sawmill, Bar Top
Season 21 - Episode 26 - Aired 6/22/2023
Nathan mills a large piece of an old red oak tree. The team come together to see if they can guess each other's cards in a special Ask This Old House headband game; Tom and Nathan team up to build a bar top out of the milled piece of red oak.
#23 - Attic Insulation, Asphalt Parking Spot
Season 21 - Episode 19 - Aired 4/20/2023
Ross 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.
#24 - Wetlands, Foundation Painting
Season 21 - Episode 16 - Aired 3/30/2023
Jenn works with a wetlands specialist; Ask This Old House profiles general contractor Zach Dettmore in a new segment; Ross discusses Indoor Air Quality testing; Mauro teaches a homeowner how to repaint an exterior, concrete foundation.
#25 - Oven Ventilation, Wireless EV Charger
Season 21 - Episode 18 - Aired 4/13/2023
Richard 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.