Richard Trethewey

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Credits
12 titles

Past Television (2 titles)	Episodes
This Old House: Trade School (2018) (TV Series) - Plumbing & Heating Expert (1 episode, 2018), Plumbling & Heating Expert (2017-) Plumbing & Heating Expert (1 episode, 2018), Plumbling & Heating Expert (2017-) See fewer Time for a Clambake (Apr 14, 2018) Season 1, Episode 19 - Plumbing & Heating Expert Plumbing & Heating Expert See fewer	1
Ask This Old House (2014) (TV Series) - Performer: "When The Saints Go Marching In" (1 episode, 2014) Performer: "When The Saints Go Marching In" (1 episode, 2014) See fewer Repairing a Rotted Porch Post/Dealing with High Indoor Humidity (Feb 8, 2014) Season 12, Episode 14 - Performer: "When The Saints Go Marching In" Performer: "When The Saints Go Marching In" See fewer	1

Self (8 titles)
Ask This Old House (2002–2026) (TV Series) - Self - Plumbing and Heating Expert / Self - Plumbing & Heating Expert / Self - Plumbing & Heating Contractor / Self - Plumbing & Heating / Self - Heating and Plumbing Expert (496 episodes, 2002) Self - Plumbing and Heating Expert / Self - Plumbing & Heating Expert / Self - Plumbing & Heating Contractor / Self - Plumbing & Heating / Self - Heating and Plumbing Expert (496 episodes, 2002) See fewer Speakeasy Hidden Door (Jan 15, 2026) Season 24, Episode 11 - Self - Plumbing & Heating Expert Self - Plumbing & Heating Expert See fewer See more See fewer Loading
This Old House (1979–2026) (TV Series) - Self - Plumbing and Heating Expert / Self - Plumbing Contractor / Self - Plumbing & Heating Expert / Self - Plumbing and Heating Contractor / Self - Plumbing and Heating Consultant / … (880 episodes, 1979) See more Self - Plumbing and Heating Expert / Self - Plumbing Contractor / Self - Plumbing & Heating Expert / Self - Plumbing and Heating Contractor / Self - Plumbing and Heating Consultant / Self - Plumbing & Heating Consultant / Self - Heating and Plumbing Expert (880 episodes, 1979) See fewer Episode #26.26 Season 26, Episode 26 - Self - Plumbing and Heating Expert Self - Plumbing and Heating Expert See fewer See more See fewer Loading
This Old House Radio Hour (2025) (Podcast Series) - Self - Plumber / Self - Plumbing Expert (voice) (14 episodes, 2025) Self - Plumber / Self - Plumbing Expert (voice) (14 episodes, 2025) See fewer High-Tech Holidays + Contractor Overages + Steve Schirripa's Vegas Dream House (Nov 22, 2025) Season 1, Episode 36 - Self - Plumber (voice) Self - Plumber (voice) See fewer See more See fewer Loading
This Old House: Trade School (2017–2020) (TV Series) - Self - Plumbing and Heating Expert / Self - Plumbing & Heating Expert / Self - Heating and Plumbing Expert (38 episodes, 2017) Self - Plumbing and Heating Expert / Self - Plumbing & Heating Expert / Self - Heating and Plumbing Expert (38 episodes, 2017) See fewer Italianate Renaissance (May 23, 2020) Season 3, Episode 26 - Self - Plumbing and Heating Expert Self - Plumbing and Heating Expert See fewer See more See fewer Loading
The Tonight Show Starring Jimmy Fallon (2015–2017) (TV Series) - Self - 'Ask This Old House' Expert (2 episodes, 2015) Self - 'Ask This Old House' Expert (2 episodes, 2015) See fewer Gordon Ramsay/Alessia Cara/Ask This Old House (Feb 3, 2017) Season 4, Episode 91 - Self - 'Ask This Old House' Expert Self - 'Ask This Old House' Expert See fewer Julianna Margulies/Andy Cohen/Ask This Old House (Sep 30, 2015) Season 3, Episode 17 - Self - 'Ask This Old House' Expert Self - 'Ask This Old House' Expert See fewer
Late Night with Jimmy Fallon (2010–2012) (TV Series) - Self (3 episodes, 2010) Self (3 episodes, 2010) See fewer Episode dated 17 December 2012 (Dec 17, 2012) Self Self See fewer See more See fewer Loading
Inside This Old House (TV Series) - Self - Plumbing and Heating Expert Self - Plumbing and Heating Expert See fewer
The This Old House Hour (TV Series) - Self Self See fewer

Archive Footage (2 titles)
This Old House (2020) (TV Series) - Self - Plumbing and Heating Expert (archive footage) (3 episodes, 2020) Self - Plumbing and Heating Expert (archive footage) (3 episodes, 2020) See fewer Behind the Build: Anatomy of a Kitchen (Oct 22, 2020) Season 42, Episode 4 - Self - Plumbing and Heating Expert (archive footage) Self - Plumbing and Heating Expert (archive footage) See fewer See more See fewer Loading
Ask This Old House (2020) (TV Series) - Self - Plumbing & Heating Expert (archive footage) (1 episode, 2020) Self - Plumbing & Heating Expert (archive footage) (1 episode, 2020) See fewer Preventing Plumbing Disasters (Oct 8, 2020) Season 19, Episode 2 - Self - Plumbing & Heating Expert (archive footage) Self - Plumbing & Heating Expert (archive footage) See fewer

Archive Footage (2 titles)

This Old House (2020)
(TV Series) - Self - Plumbing and Heating Expert (archive footage) (3 episodes, 2020) Self - Plumbing and Heating Expert (archive footage) (3 episodes, 2020) See fewer

Behind the Build: Anatomy of a Kitchen (Oct 22, 2020) Season 42, Episode 4 - Self - Plumbing and Heating Expert (archive footage) Self - Plumbing and Heating Expert (archive footage) See fewer

See fewer

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Ask This Old House (2020)
(TV Series) - Self - Plumbing & Heating Expert (archive footage) (1 episode, 2020) Self - Plumbing & Heating Expert (archive footage) (1 episode, 2020) See fewer

Preventing Plumbing Disasters (Oct 8, 2020) Season 19, Episode 2 - Self - Plumbing & Heating Expert (archive footage) Self - Plumbing & Heating Expert (archive footage) See fewer

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Richard Trethewey (I)

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