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Season guide

This Old House: Season 26

26 episodes Premiered Oct 9, 2004 Updated Sep 26, 2026

The Carlisle House

Previously on This Old House

Season 26 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Directly follows the overarching narrative developments of This Old House Season 25.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.

Season overview

The Carlisle House

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Season 26 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 26 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 26: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

15%
85%
Mytharc (4): Crucial lore & season climaxes
Core (22): Character development & subplots
Side Quest (0): Standalone / filler
S26·E2 Core

Appreciating the Past - The Carlisle House

Oct 16, 2004

Have house, will renovate! Thanks to an accepted bid, This Old House is now the proud owner of a classic New England farmstead in Carlisle, Massachusetts. To be sure that the house

S26·E4 Core

Saving Old Barns for New Homes - The Carlisle House

Oct 30, 2004

Tom brings in an excavator fitted with a hoe ram to jackhammer away the ledge standing in the way of our new basement. Using a 3D model, Richard explains the anatomy of a septic sy

S26·E5 Core

Foundation Installation Begins - The Carlisle House

Nov 6, 2004

Kevin visits Great Brook Farm State Park, a 1,000-acre park and the last working dairy farm in Carlisle, Massachusetts. Tom shows Kevin how he created a custom crushed stone floori

S26·E6 Core

Prefab Systems Speed Things Up - The Carlisle House

Nov 13, 2004

Tom uses laminated veneer lumber to make up 40-foot beams that will support the first floor deck of the barn. Kevin meets panelized construction specialist Jim LeRoy to watch the I

S26·E7 Core

Passing on the Trades - The Carlisle House

Nov 20, 2004

Detectorist Bob Phillips discovers a cannonball at the job site that may be a souvenir from the war of 1812. Norm shows Kevin the progress on the framing of the old Greek Revival h

S26·E9 Core

Envisioning the Kitchen - The Carlisle House

Dec 4, 2004

Kevin drives up to find landscaping finally underway and the house is full of 100 newly arrived windows. Stone wall expert Nick O'Hara shows Kevin why he has to send back an entire

S26·E10 Core

Shaping the Spaces - The Carlisle House

Dec 11, 2004

Roger shows Kevin how he's refusing the old foundation capstones as granite steps to connect the two driveways. Mason Mike Lapitsky explains to Kevin how he selects, chisels, and d

S26·E13 Core

Digging for Water - The Carlisle House

Jan 1, 2005

Kevin opens the show in Concord, Massachusetts, where dozens of stately elm trees once lined Main Street - until Dutch Elm disease nearly destroyed them all. At the project house,

S26·E15 Core

Living in a Barn - The Carlisle House

Jan 15, 2005

As part of our 25th anniversary season, Kevin returns to the show's first timber frame barn project, the Concord Barn, to see how the building has held up over the last 15 years, a

S26·E17 Core

History of the Greek-Revival - The Carlisle House

Jan 29, 2005

Nurseryman Peter Mezzit arrives on site with a truckload of plant material, and (with frost on the ground) it's not a moment too soon. Roger unloads the plants while landscape arch

S26·E18 Core

Shutting Out the Cold - The Carlisle House

Feb 5, 2005

Despite freezing temperatures, Roger lays down sod in the front yard. Inside the Carlisle farmstead, plastering contractor Stephen Norton gives Kevin a lesson in the fine art of pl

S26·E19 Core

Keeping It Old - The Carlisle House

Feb 12, 2005

Kevin finds Roger and his crew finishing up the bluestone terrace and retaining wall under the protection of a heated tent. Generator specialist John Barros shows Kevin the new sta

S26·E20 Core

Prefab Meets Custom - The Carlisle House

Feb 19, 2005

Norm learns how the seamless, clog-less gutter system for the barn is fabricated and installed. Flooring contractor Patrick Hunt shows Kevin how to install a pre-finished engineere

S26·E21 Core

Mantel Troubles - The Carlisle House

Feb 26, 2005

In the barn, Norm meets up with chimney specialist Mark Schaub to determine if his oak lintel above the fireplace is truly safe, and if it will meet code. Kevin meets interior desi

S26·E22 Core

Modern Conveniences - The Carlisle House

Mar 5, 2005

On the back porch, installer Steve Primack shows Norm the new motorized screen system. Closet designer Marcy Weisburgh shows Kevin the mudroom and master closet, and shares strateg

S26·E23 Core

All the Comforts of Home - The Carlisle House

Mar 12, 2005

Norm meets lighting designer Susan Arnold for a look at the modern (but practical) cable lighting system in the kitchen. The limestone tub deck is installed in the master bath, whi

S26·E24 Core

Designer Show House - The Carlisle House

Mar 19, 2005

The designer show house begins as interior designer Mally Skok welcomes Norm to the dramatic entry hall. In the barn, senior design consultant Alexa Hampton discovers the decorated

S26·E25 Mytharc

More Designer Show House - The Carlisle House

Mar 26, 2005

Kevin and senior design consultant Alexa Hampton continue to explore the designer show house through the work of designers Gracyn Whitman, Lisa Newman Paratore, and a company that

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