Season 18 – The Nantucket House Episodes

Some TV shows are comfort food. This Old House is comfort food that also teaches you the difference between “historic charm” and “why is there a chimney here… and over there… and also in the middle of my problems?” Season 18’s “The Nantucket House” arc (18 episodes) is a classic: a small Victorian cottage on a famously picky (and famously beautiful) island, turned into a year-round retreat without bulldozing the soul out of it.

If you’re here for an episode-by-episode guide, you’re in the right place. If you’re here because you just said, “We should buy a quaint island house,” and your partner replied, “Sure, but let’s also keep it warm in January,” you’re very in the right place.

Quick Snapshot: What the Nantucket House Project Was

The “Nantucket House” project centers on a Victorian-style home at 3 Milk Street on Nantucket. In 1996, This Old House aired 18 episodes documenting the renovation, with island contractor Bruce Killen playing a prominent role. The house is privately owned and not open to the public (so please don’t knock like you’re picking up a takeout order).

The crew’s mission: take a small 1887 Victorian cottage and make it work as a modern, year-round retreatwithout breaking the island’s historic spell. That means balancing old-house preservation with real-life needs: better systems, smarter layout, sturdier materials, and finishes that satisfy the local Historic District rules.

The season’s “Nantucket” storyline is also a love letter (with a raised eyebrow) to the island itselfits natural beauty, preserved architecture, and the constant tension between protecting what makes Nantucket Nantucket… and the reality that people keep wanting to live there.

Why These Episodes Still Hit in 2026

Plenty of renovation TV is basically: “We knocked down a wall, found a surprise, and now we’re over budget.” The Nantucket arc is different. It’s a slow, satisfying build that teaches you why good renovations take time: design approvals, code upgrades, structural reinforcement, insulation strategy, mechanical planning, and those maddening finishing details that separate “cute” from “crisp.”

It’s also a masterclass in coastal logic. Salt air, wind-driven rain, and seasonal temperature swings do not care about your Pinterest board. This project puts durability and weatherproofing on equal footing with stylethen makes style behave.

Episode-by-Episode Guide (Parts 1–18)

The “Nantucket House” run unfolds over 18 weekly parts. Think of it as a renovation novel, except the plot twist is always: “We need an approval,” “We need more framing,” or “We need a better way to heat this place.”

Episode 1 The Nantucket House: Part 1

The crew arrives on Nantucket and meets the homeowners, Craig and Kathy McGraw Bentley. The big takeaway: the cottage has small rooms and tired systems, but huge potential. It’s the kind of “before” that makes you whisper, “Okay, but what if we just… started over?” and then immediately feel guilty.

• Watch for: first impressions, project goals, and what “year-round retreat” really demands.

Episode 2 Part 2

Design talk turns serious: architectural plans are reviewed with designer Jock Gifford, and the reality of the Historic District Commission (HDC) lands. Translation: the house will be updated, but it must still look like it belongs on Nantucket.

• Watch for: how design intent gets filtered through historic oversight.

Episode 3 Part 3

A building permit arrives and demolition is well underway. A fun old-house moment pops up when the homeowner finds double doors with etched glass a reminder that “salvage” is sometimes just “treasure you didn’t know you owned.”

• Watch for: the early momentum of a gut renovation and the value of saved originals.

Episode 4 Part 4

Unneeded, unsafe chimneys come down, and the episode leans into masonry fundamentalslike mixing mortar properly for a new foundation. It’s practical knowledge disguised as satisfying destruction.

• Watch for: “remove what’s wrong” before you “build what’s right.”

Episode 5 Part 5

With the house nearly fully reframed, the conversation shifts to efficiency and code. This is where the show quietly tells you, “Your dream layout is cute, but the inspector is not here for your dream.”

• Watch for: how structural and energy decisions get locked in early.

Episode 6 Part 6

Framing intensifies as a gable wall gets assembled and raised into place. Meanwhile, a modern systems idea surfaces: a ground-source (geothermal) heat pump for heating and cooling. The island cottage is officially flirting with the future.

• Watch for: the moment “old house” meets “high-performance HVAC.”

Episode 7 Part 7

Exterior details matter. Window sash color is approved, the foundation is parged to match old work, and the roof’s decorative diamond detail appears. Nantucket style is subtle… but absolutely not casual.

• Watch for: how historic-looking details can be built with modern intent.

Episode 8 Part 8

The geothermal plan gets real: one of two wells is drilled. The episode also highlights preserved open spaces on the islandbecause the setting is a character in this season, not just a backdrop.

• Watch for: early geothermal infrastructure and island conservation context.

Episode 9 Part 9

A visit to Nantucket’s African Meeting House connects the renovation to deeper local history. Then the show detours to Switzerland to explore one response to high building and real-estate costsan interesting “zoom out” from a very specific island dilemma.

• Watch for: how the show ties housing, history, and affordability into one conversation.

Episode 10 Part 10

The Life-Saving Museum segment underscores Nantucket’s maritime past, while the job site becomes a buzzing ecosystem of subcontractors. This is the “too many moving parts” chapterwhere scheduling becomes its own trade.

• Watch for: how a project shifts from “carpentry” to “coordination.”

Episode 11 Part 11

Another island stop (the Wharf Rat Club) kicks off the episode, then it’s back to house progress: a Victorian-detailed chimney is complete and a custom bulkhead door is finished. It’s the middle stretch where craftsmanship starts showing up in the bones.

• Watch for: bespoke exterior elements that feel period-correct but function better.

Episode 12 Part 12

Restored Victorian double doors are prepped for installation, and the new metal ductwork for heating and cooling delivery is featured. A reminder that comfort is engineeredespecially when you’re turning a summer cottage into a winter-friendly home.

• Watch for: mechanical planning that respects old framing and tight spaces.

Episode 13 Part 13

Insulation becomes the star (yes, insulation can be a star). The geothermal system is connected to hot water storage tanks and air handlers upstairs. This is the “quiet wins” part of the seasonno flashy finishes, just performance.

• Watch for: how high-efficiency systems need careful integration, not just fancy equipment.

Episode 14 Part 14

A ride out to Coatue sets the island mood, then the show dives into “Nantucket style” clapboarding and a new deck system. Exterior durability meets exterior beauty, and everyone is politely pretending salt air isn’t trying to ruin their day.

• Watch for: siding choices and deck construction built for coastal reality.

Episode 15 Part 15

Historic review strikes again: a proposed Victorian fence is deemed “too fancy,” and a simpler Quaker picket gets the green light. The lesson is timeless: sometimes the most “authentic” choice is the one that looks like it’s always been there.

• Watch for: how historic commissions shape design through restraint.

Episode 16 Part 16

A fishing trip offers classic Nantucket flavor, then the house gets a serious style upgrade: a pressed-metal (“tin”) ceiling goes up in the kitchen. It’s a big visual payoff that still feels historically appropriate.

• Watch for: period-style interior details that add character without adding clutter.

Episode 17 Part 17

After a visit to the Milestone Cranberry Bog, the focus turns to the punch listaka the part where you realize the last 5% of work is 95% of your stress. It’s the “final stretch” episode that respects the grind.

• Watch for: the reality of finishing: alignment, trim, touch-ups, and “why won’t that door close?”

Episode 18 Part 18 (Finale)

Final rush. Final installs. Final reveals. Norm checks out a wall-bed unit that lets a downstairs room serve double duty (library by day, guest room by night), while fixtures for new bathrooms are shown. It’s the satisfying close: old house preserved, new life enabled.

• Watch for: space-saving solutions and the “it finally feels like a home” moment.

Big Renovation Themes You Can Steal (Legally)

1) Historic rules aren’t “red tape”they’re design constraints that sharpen taste

The HDC shows up repeatedly in this arc: exterior changes require approval, colors matter, fences get judged, windows must satisfy both energy goals and historic guidelines. Instead of treating that as an annoyance, the season shows the upside: constraints push the design toward calm, cohesive, island-appropriate choices.

2) Code upgrades are invisible… until you skip them

Framing reinforcement and code compliance are recurring realities, especially when an older structure needs to support new layouts. This season is a friendly reminder that “vintage” is not a structural engineering strategy. Strength comes first, charm comes second, and comfort comes somewhere around “please let the plumbing behave.”

3) The geothermal storyline is a long game that pays off

The ground-source heat pump isn’t a gimmick here. You see it move from idea (Episode 6) to wells (Episode 8) to integrated system connections (Episode 13). The season treats high-performance HVAC like a whole-house decisionbecause it is.

4) Coastal durability is a “materials” conversation, not a “hope” conversation

You’ll see coastal-friendly thinking across the project: a cedar roof intended to stand up to harsh weather, siding choices aligned with local tradition, and a deck system that respects exposure. The lesson: the ocean is beautiful, but it is also basically a rust-and-rot machine with great PR.

5) Space-saving details make small houses feel generous

The wall bed, the smarter room planning, and the careful mechanical layout show how you can keep a home’s footprint modest while making it live bigger. “Year-round retreat” isn’t about square footage; it’s about function.

How to Watch (and Rewatch Without Shame)

This Old House is a PBS series, and availability can vary by station and platform. PBS’s show page points viewers to local listings and the PBS app, while other services may list seasons and episodes depending on licensing in your region. If you’re hunting specifically for Season 18’s Nantucket arc, search by “Season 18” plus “The Nantucket House” (Parts 1–18), since Season 18 also includes a separate Tucson project after the Nantucket finale.

of “Watching Experience” Notes

Watching “The Nantucket House” episodes feels like visiting an island where everyone speaks fluent craftsmanship. The pacing is slow in the best way: you’re not being bombarded with dramatic music every time someone discovers a weird pipe. Instead, the show gives you that rare pleasure of seeing a real project unfold in real sequencedesign, approvals, demo, structure, systems, envelope, details, and finish.

The first thing you notice during a binge is how often the “boring” parts are the point. Framing revisions, code talk, mortar mixing, duct routingthese aren’t filler. They’re the reason the pretty parts hold up. By Episode 5, you start to realize the show is quietly training your brain to respect the bones of a house. You stop thinking, “What color should the cabinets be?” and start thinking, “Is this wall actually doing something important?”

The second thing you notice is how Nantucket itself is always in the room. Even when the camera is inside the house, you feel the island’s presence through the choices: the restraint of the exterior, the care with historic features, the attention to weather. The HDC approvals aren’t presented as a villain; they’re presented as a reality of living in a place that wants to remain itself. Episode 15’s fence decision is a perfect example: sometimes “less fancy” isn’t a compromiseit’s the most Nantucket thing you can do.

Somewhere around Episodes 8 through 13, the geothermal storyline becomes unexpectedly satisfying. Not because drilling wells is thrilling television (it’s notunless you’re the kind of person who gets excited about torque), but because you can see a modern system being integrated thoughtfully, not slapped in as a flex. The show makes “efficiency” feel like a craft choice, not a marketing word. By the time insulation and air handlers are getting connected, you’re rooting for the mechanical room like it’s a main character.

Finally, the last episodes deliver that specific renovation joy: the moment when a house stops looking like a project and starts looking like a place where someone can actually live. The pressed-metal ceiling, the punch list wrap-up, the wall bed solutionthese are the details that make the home feel intentional. When the finale hits, it’s not just “before and after.” It’s “before and after… and also, here’s why the after won’t fall apart in five winters.”

If you’re a homeowner, you’ll finish the season with a stronger instinct for sequencing (don’t chase finishes before systems), a better appreciation for constraints (historic rules can improve design), and an odd urge to say phrases like “building envelope” at dinner. Use this power responsibly.

Final Thoughts

Season 18’s “The Nantucket House” arc is more than a renovation storyit’s a course in how to modernize respectfully: keep the character, upgrade the performance, and let the island set the tone. It’s proof that “cozy” and “capable” can coexist, as long as you’re willing to do the hard parts the right way.