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This Old House
Season 47 · Episode 23
Walpole ADU: Retro Vibes
0.025mMay 7, 2026
Zack Dettmore installs vinyl siding with trim details that give it a more traditional look, then tours a Pennsylvania factory where a modular Accessory Dwelling Unit is framed, wired, finished, and prepared for delivery. Back in Walpole, Richard Trethewey explains a ceiling cassette HVAC system for the basement, and the crew installs a three-panel sliding glass door.
Episodes
- Episode 1Asheville Rebuilds
- Episode 2Asheville: Rising Out of the Muck
- Episode 3Asheville: All Clear
- Episode 4Asheville: Waterproof Work
- Episode 5Asheville: Out of the Mountains
- Episode 6Asheville: Community Carpenters
- Episode 7Asheville: Boulder Dash
- Episode 8Asheville: Bricks, Blinds and Brews
- Episode 9Asheville: Silt and Stone
- Episode 10Asheville: Putting Down Roots
- Episode 11Asheville: Coming Home
- Episode 12Needham: Needed in Needham
- Episode 13Needham: Pouring It On
- Episode 14Needham: Reduce, Reside, Recycle
- Episode 15Needham: Getting Our Ducts in a Row
- Episode 16Needham: Trim and Proper
- Episode 17Needham: Foot Traffic
- Episode 18Needham: Going Through Customs
- Episode 19Needham: Everything Old Is New Again
- Episode 20Needham: Let It Show
- Episode 21Walpole ADU: Welcome to Walpole
- Episode 22Walpole ADU: An ADU Takes Shape
- Episode 23Walpole ADU: Retro Vibes
- Episode 24Walpole ADU: An Attic ADU
- Episode 25Walpole ADU: Board and Batten Down the Hatches
- Episode 26Walpole ADU: A Double Homecoming