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The Best Episodes of Ask This Old House Season 20

Every episode of Ask This Old House Season 20 ranked from best to worst. Discover the Best Episodes of Ask This Old House Season 20!

The Best Episodes of Ask This Old House Season 20

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....
  1. Background image for Two-Prong Outlet; Deck Stair Rail
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    #1 - Two-Prong Outlet; Deck Stair Rail

    S20:E1

    Richard discusses pipe soldering; Heath explains what two-prong receptacles are, why they're no longer to code, and how to replace them; Nathan and Mauro build, install, and paint deck stair railings.

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    Director:Unknown
    Writer:Unknown
  2. Background image for Durable Landscape; Cutting Board
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    #2 - Durable Landscape; Cutting Board

    S20:E2

    Jenn creates a landscape that can withstand heavy pedestrian traffic; Richard explains the options available for water heaters; Tom and Kevin build a cutting board out of walnut, cherry, and maple.

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    Director:Unknown
    Writer:Unknown
  3. Background image for Hole Patches; Threshold Repair
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    #3 - Hole Patches; Threshold Repair

    S20:E3

    Jenn discusses creative options for ground cover plants; Tom demonstrates different techniques for patching wall holes; Mark demonstrates how to patch brick holes; Nathan installs a new threshold.

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    Director:Unknown
    Writer:Unknown
  4. Background image for Wood Floors, DIY Ice Rink
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    #4 - Wood Floors, DIY Ice Rink

    S20:E4

    Mauro demonstrates how to remove dried paint from a paintbrush; Tom shares the best techniques for connecting and installing tongue and groove flooring; Jenn and Nathan build a DIY ice rink.

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    Director:Unknown
    Writer:Unknown
  5. Background image for Smart Doorbells, Recessed Lights
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    #5 - Smart Doorbells, Recessed Lights

    S20:E5

    Ross discusses the pros and cons of smart doorbells; Mauro demonstrates techniques for painting wood paneling; Heath shares some of his most-used tools and helps a homeowner install recessed lights.

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    Director:Unknown
    Writer:Unknown
  6. Background image for Easier Plumbing, Roofing 101
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    #6 - Easier Plumbing, Roofing 101

    S20:E6

    Mark explains how bricks are made and how many different varieties there are; Richard explains how solderless connections work; Tom assess and reshingles a shed roof with asphalt shingles.

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    Director:Unknown
    Writer:Unknown
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  8. Background image for Fall Garden Tips, Paint Cabinets
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    #7 - Fall Garden Tips, Paint Cabinets

    S20:E7

    Jenn shares her list of must have gardening tools and how to put a garden to bed before winter; Mauro demonstrates how to paint a kitchen cabinet; Nathan installs exterior front door trim.

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    Director:Unknown
    Writer:Unknown
  9. Background image for An AskTOH Barn Raising
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    #8 - An AskTOH Barn Raising

    S20:E8

    The entire team comes together to help Mark rebuild the chicken barn he lost to a fire. They reframe the barn, hook up new electrical wiring, connect a utility sink, and hang an exterior door.

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    Director:Unknown
    Writer:Unknown
  10. Background image for Drill Drivers, Patios Expansion
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    #9 - Drill Drivers, Patios Expansion

    S20:E9

    In Tool Lab, tool expert Chris Ermides demonstrates how tables saw blades work; Heath explains why and how to use a voltage tester; Mark helps a homeowner extend her existing patio.

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    Director:Unknown
    Writer:Unknown
  11. Background image for Camilla's Workshop
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    #10 - Camilla's Workshop

    S20:E10

    General contractor and expert woodworker Tom Silva meets past guest and young woodworker Camilla in her dad's shop where they catch up since they last met. After checking out some of Camilla's work, the two discuss her need for a workspace of her own. With a worktable in mind, Tom invites her back to the workshop to help with the special project, a birdhouse.

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    Director:Unknown
    Writer:Unknown
  12. Background image for Holiday Projects
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    #11 - Holiday Projects

    S20:E11

    Jenn explains how to identify and care for holly plants; Richard explains how dishwashers work and how to troubleshoot them when they don't drain properly; Tom and Kevin turn Christmas ornaments.

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    Director:Unknown
    Writer:Unknown
  13. Background image for Wifi Extension, Tub Drain
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    #12 - Wifi Extension, Tub Drain

    S20:E12

    In Tool Lab, Nathan explains what different table saw blade types are used for; Ross extends WiFi service in a house; Richard replaces a faulty tub drain; the team shares their New Years' Resolutions.

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    Director:Unknown
    Writer:Unknown
  14. Background image for Rot Repair, Heat Pumps
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    #13 - Rot Repair, Heat Pumps

    S20:E13

    Mark shares the story of how he became a mason; Tom explains why wood rots on houses, how to prevent it, and how to repair it if it occurs; Ross explores heat pump technology.

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    Director:Unknown
    Writer:Unknown
  15. Background image for Patch Plaster, Sinking Drywell
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    #14 - Patch Plaster, Sinking Drywell

    S20:E14

    Heath explains why finish electrical work is his favorite stage of the job; Mauro demonstrates how to repair a crack in plaster; Mark raises a drywell in a driveway that is sinking below grade.

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    Director:Unknown
    Writer:Unknown
  16. Background image for Celebrating 20 Years
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    #15 - Celebrating 20 Years

    S20:E15

    The entire cast reflects on the 20th anniversary of ASK THIS OLD HOUSE. They'll discuss how the show was made and what they think the legacy of the television program will be moving forward.

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    Director:Unknown
    Writer:Unknown
  17. Background image for Vinyl Floor, Heating Bill Savings
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    #16 - Vinyl Floor, Heating Bill Savings

    S20:E16

    Jenn shares the story of how she became a landscape designer; Richard and Ross explain cost-effective ways to save money on your heating bill this winter; Nathan helps a homeowner replace a vinyl kitchen floor.

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    Director:Unknown
    Writer:Unknown
  18. Background image for Water Fountain, Supply Chains
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    #17 - Water Fountain, Supply Chains

    S20:E17

    Jenn and Mark show how to make a stone water fountain for your garden; In Tool Lab, Nathan breaks down Miter Saw blades; The team comes together to discuss the challenges they've faced dealing with ongoing supply chain issues.

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    Director:Unknown
    Writer:Unknown
  19. Background image for Porch Base Column Repair, Smart Thermostats
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    #18 - Porch Base Column Repair, Smart Thermostats

    S20:E18

    Richard shares how he became a plumber and what he loves about his trade; Ross talks about smart thermostats and their features; Heath explains how to understand switch legs; Tom replaces an old, rotted porch column base.

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    Director:Unknown
    Writer:Unknown
  20. Background image for Shrub Harvesting, Building A Box Joint Jig
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    #19 - Shrub Harvesting, Building A Box Joint Jig

    S20:E19

    Jenn visits a nursery to learn how shrubs are planted and harvested; Ross and Nathan show cost-effective ways to air-seal your windows this winter; Tom demonstrates how to build a serving tray using a box joint jig.

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    Director:Unknown
    Writer:Unknown
  21. Background image for Concrete Driveway, Spray Paint
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    #20 - Concrete Driveway, Spray Paint

    S20:E20

    Nathan gives a tour of his highly organized truck; Richard shows different kinds of bidets and their functions; Mauro explains how to use spray paint for small home projects; Mark replaces an old, patched driveway with a new concrete one.

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    Director:Unknown
    Writer:Unknown
  22. Background image for Front Hall Closet, Block Retaining Wall
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    #21 - Front Hall Closet, Block Retaining Wall

    S20:E21

    Jenn Nawada explains how you can compost at home; Jenn Largesse and her landscape contractor install a concrete block retaining wall in Jenn's backyard; Tom constructs custom built-in drawers, cubbies and shelves for a front hall closet.

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    Director:Unknown
    Writer:Unknown
  23. Background image for Fireplace Repairs, Simple Clog Fixes
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    #22 - Fireplace Repairs, Simple Clog Fixes

    S20:E22

    Heath breaks down the basic voltages of cordless tools; Richard gives an overview on how to handle simple clogs in a bathroom sink, kitchen sink and toilet; Mark repairs a fireplace and replaces its cover.

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    Director:Unknown
    Writer:Unknown
  24. Background image for Window Flower Boxes, Smart Electrical Panels
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    #23 - Window Flower Boxes, Smart Electrical Panels

    S20:E23

    Tom shares how he became a general contractor and what he loves about his trade; Heath and Ross explain what smart electric panels are and how they work; Jenn and Nathan build and fill new window flower boxes.

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    Director:Unknown
    Writer:Unknown
  25. Background image for Sagging Fence Gate, Shipping Container Pool
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    #24 - Sagging Fence Gate, Shipping Container Pool

    S20:E24

    Nathan demonstrates different ways to fix scratches on wood furniture; Jenn Largesse oversees the installation of a shipping container pool in her backyard; Tom shows how to fix and resecure a sagging fence gate.

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    Director:Unknown
    Writer:Unknown
  26. Background image for Wobbly Toilet, Led Lightbulbs
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    #25 - Wobbly Toilet, Led Lightbulbs

    S20:E25

    Nathan shares how he became a carpenter and what he loves about his trade; Heath talks all about different LED light bulbs; Richard fixes a wobbly toilet and repairs a sticky faucet handle.

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    Director:Unknown
    Writer:Unknown

Season 20 Ratings Summary

"Two-Prong Outlet; Deck Stair Rail" is the best rated episode of "Ask This Old House" season 20. It scored /10 based on 0 votes. Directed by Unknown and written by Unknown, it aired on 9/30/2021. This episode is rated 0.0 points higher than the second-best, "Durable Landscape; Cutting Board".