This Old House · SEASON 47
Walpole ADU: Retro Vibes
Episode 23 · 2026-05-07

- Documentary
- Reality
Episode overview
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.
25 minutes
Season 47 episodes
1. Asheville Rebuilds2025-09-25
2. Asheville: Rising Out of the Muck2025-10-02
3. Asheville: All Clear2025-10-09
4. Asheville: Waterproof Work2025-10-16
5. Asheville: Out of the Mountains2025-10-23
6. Asheville: Community Carpenters2025-10-30
7. Asheville: Boulder Dash2025-11-06
8. Asheville: Bricks, Blinds and Brews2025-11-13
9. Asheville: Silt and Stone2026-01-01
10. Asheville: Putting Down Roots2026-01-08
11. Asheville: Coming Home2026-01-15
12. Needham: Needed in Needham2026-01-22
13. Needham: Pouring It On2026-01-29
14. Needham: Reduce, Reside, Recycle2026-02-05
15. Needham: Getting Our Ducts in a Row2026-02-12
16. Needham: Trim and Proper2026-02-19
17. Needham: Foot Traffic2026-03-26
18. Needham: Going Through Customs2026-04-02
19. Needham: Everything Old Is New Again2026-04-09
20. Needham: Let It Show2026-04-16
21. Walpole ADU: Welcome to Walpole2026-04-23
22. Walpole ADU: An ADU Takes Shape2026-04-30
23. Walpole ADU: Retro Vibes2026-05-07
24. Walpole ADU: An Attic ADU2026-05-14
25. Walpole ADU: Board and Batten Down the Hatches2026-05-21
26. Walpole ADU: A Double Homecoming2026-05-28