Ask This Old House backdrop
Ask This Old House poster
Documentary

The Best Episodes of Ask This Old House Season 21

Every episode of Ask This Old House Season 21 ranked from best to worst. Discover the Best Episodes of Ask This Old House Season 21!

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....

Filter By Season23

  1. NaN/10(0 votes)

    #1 - Water Heater Autopsy, Composting

    S21:E1

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  2. NaN/10(0 votes)

    #2 - EV Chargers, China Cabinet Repair

    S21:E2

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  3. NaN/10(0 votes)

    #3 - Doorbell Retrofit, Driveway Edging

    S21:E3

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  4. NaN/10(0 votes)

    #4 - Woodland Garden, Chimney Repairs

    S21:E4

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  5. NaN/10(0 votes)

    #5 - Wallpaper Restore, Gutter Repairs

    S21:E5

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  6. NaN/10(0 votes)

    #6 - Sandstone Repair, Awning Installation

    S21:E6

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  7. Trending NowTRENDING NOW

    The 20 BEST Episodes of Ask This Old House

    READ
  8. NaN/10(0 votes)

    #7 - Paint Bathroom Tile, Hot Water Tank Replacement

    S21:E7

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  9. NaN/10(0 votes)

    #8 - Little Free Library

    S21:E8

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  10. NaN/10(0 votes)

    #9 - Install Cabinet Hardware, Breaker Trips

    S21:E9

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  11. NaN/10(0 votes)

    #10 - Antique Pocket Door, Shaker End Table

    S21:E10

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  12. NaN/10(0 votes)

    #11 - Baby Proofing, Septic Systems

    S21:E11

    Nathan, 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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  13. NaN/10(0 votes)

    #12 - Neighbors Helping Neighbors

    S21:E12

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  14. NaN/10(0 votes)

    #13 - Fire Pit Plan, Window Restoration

    S21:E13

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  15. NaN/10(0 votes)

    #14 - Dimmer Switch Troubleshooting, Clothes Rack

    S21:E14

    Jenn shares why she loves bringing her dog to work; Heath helps a homeowner troubleshoot a strobing dimmer switch; Ross explains the benefits of smart bath ventilation; Tom builds a DIY clothes rack.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  16. NaN/10(0 votes)

    #15 - Shed Organization, Pea Stone Walkway

    S21:E15

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  17. NaN/10(0 votes)

    #16 - Wetlands; Foundation Painting

    S21:E16

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  18. NaN/10(0 votes)

    #17 - Fireplace Painting; Bathtub Tray

    S21:E17

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  19. NaN/10(0 votes)

    #18 - Oven Ventilation; Wireless EV Charger

    S21:E18

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  20. NaN/10(0 votes)

    #19 - Attic Insulation, Asphalt Parking Spot

    S21:E19

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  21. NaN/10(0 votes)

    #20 - Transition Garden, Granite Post Sign

    S21:E20

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  22. NaN/10(0 votes)

    #21 - Full Sun Garden, Radiator Floor Patch

    S21:E21

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  23. NaN/10(0 votes)

    #22 - Cold Water Bathtub, Cornhole

    S21:E22

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  24. NaN/10(0 votes)

    #23 - Flagstone Repairs, Tub Diverter

    S21:E23

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  25. NaN/10(0 votes)

    #24 - Hand-Turned Spindle, Replication

    S21:E24

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A
  26. NaN/10(0 votes)

    #25 - Circuit, Table Saw, Fireplace Insert

    S21:E25

    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.

    0 Comments
    View all
    Director:N/A
    Writer:N/A

Season 21 Ratings Summary

"Water Heater Autopsy, Composting" is the best rated episode of "Ask This Old House" season 21. It scored N/A/10 based on 0 votes. Directed by N/A and written by N/A, it aired on 9/29/2022. This episode is rated NaN points higher than the second-best, "EV Chargers, China Cabinet Repair".