Walpole ADU: An ADU Takes Shape

This Old House poster
This Old House
30th April 2026 25 mins Season 47 Episode 22

Kevin demos a wall in the primary bedroom. Tom frames an exterior wall to tie old and new spaces together, Richard reviews shared plumbing for the ADU, and the electrician buries a new 400-amp service to feed both homes.

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Walpole ADU: Retro Vibes still
Season 47 · Episode 23

Walpole ADU: Retro Vibes

Vinyl siding goes up on the main house and ADU as Kevin reveals the ADU's framed layout. Richard reviews basement HVAC while a team upstairs installs a three-panel slider to connect indoor and outdoor living.
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01 Bob Vila profile Bob Vilaas Self - Host 02 Kevin O'Connor profile Kevin O'Connoras Self - Host 03 Richard Trethewey profile Richard Tretheweyas Self - Plumbing and Heating Expert 04 Norm Abram profile Norm Abramas Self - Master Carpenter 05 Tom Silva profile Tom Silvaas Self - General Contractor 06 Jenn Nawada profile Jenn Nawadaas Self - Landscape Contractor 07 Mark McCullough profile Mark McCulloughas Self - Mason 08 Charlie Silva profile Charlie Silvaas Self - Home Builder 09 Steve Thomas Rooney profile Steve Thomas Rooneyas Host 10 Roger Cook profile Roger Cookas Self - Landscape Contractor 11 Russell Morash profile Russell MorashCreator
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