Chalk Hill · Sonoma County
A small family winery in Windsor that grew from one home barrel of Pinot Noir, with tastings by appointment in its own winery space, and a suggested six-hour day of tasting around it.
Book a Six-Hour Wine Tour
K Squared Cellars is the family winery of Andrew and Julie Moore. Andrew spent his first nine years in the wine business at Charles Krug in St. Helena, and in 2010 he made a single barrel of Russian River Valley Pinot Noir at home. Five years later the family took on winery and tasting room space in Windsor.
The name honors their children, Kaylie and Kyle: as the family puts it, the love in the family was multiplied, or squared, with each K. The current lineup includes Russian River Valley Pinot Noir, Zinfandel and Rosé, Sonoma County Sauvignon Blanc and Sonoma County Cabernet Sauvignon. Andrew won Best in Class and Double Gold at the 2020 Sonoma County Harvest Fair.
Tastings are by appointment at the winery, in a light industrial park on the south side of Windsor, and can be booked with as little as 30 minutes' notice. It is a low-key, personal visit at a working winery. We confirm current details when we book.
K Squared Cellars does not publish its tasting fee on its website. Tasting fees to be verified upon reservation.
Tasting fees as of October 2026. Wineries set and collect their own fees, and they change from time to time.
At a Glance
Location
7975 Cameron Drive, Building 1500-A, Windsor
AVA
Chalk Hill
Visiting
By appointment only. Open Monday and Thursday, 3 to 6 p.m.; Friday and Saturday, 11 a.m. to 6 p.m.; and Sunday, noon to 6 p.m. Closed Tuesday and Wednesday. Appointments can be made by phone, text or email with as little as 30 minutes' notice.
Known For
Small-lot Russian River Valley Pinot Noir and Zinfandel, plus Sonoma County Sauvignon Blanc and Cabernet Sauvignon
Founded
2010 (first barrel; winery and tasting room since 2015)
Good to Know
The winery is in a business park, and the winery notes that navigation apps may lead to the back of the building, where there is no door. Your chauffeur knows to circle around to the front.
Pickup at 10:30 a.m. from a nearby hotel such as Hampton Inn & Suites Windsor or Holiday Inn Express Windsor. K Squared is about 5 to 10 minutes away.
Both hotels are in Windsor, within about 10 minutes of every stop today. Pickup is at 10:30 because K Squared opens later in the day, so the winery comes after lunch. Extra time can be added by the hour.
About 10 minutes away. A family farming the Russian River Valley since the 1880s, home of Jackass Hill Zinfandel, in a historic hop barn on River Road. The Hop Barn Tasting at the bar is $25; plan on about an hour.
About 15 minutes away. Lunch at the Windsor Brewery & Pub on Mitchell Lane, the brewery's large pub and beer garden, open daily from 11 a.m., a few minutes from K Squared. We confirm hours when we book. Prefer a picnic? We can arrange a catered picnic at a winery that allows one; the cost is quoted when you book.
About 5 minutes away. A tasting by appointment at the family's winery; the fee is confirmed when we book. Plan on about 45 minutes to an hour.
About 10 minutes away. A boutique winery owned by a seventh-generation Russian River Valley grape-growing family, pouring estate wines on the Windsor Town Green. Tasting fees to be verified upon reservation; plan on about an hour.
Back by 4:30 p.m., six hours after pickup.
K Squared is closed Tuesday and Wednesday and opens at 3 p.m. on Monday and Thursday, so the day above suits Friday through Sunday. On Monday or Thursday we visit Trecini before K Squared. Martinelli is open daily, 10 a.m. to 5 p.m.
About $25 per person for the Hop Barn Tasting at Martinelli, plus the K Squared and Trecini fees, which we confirm when we book. Fees are paid directly to each winery.
Every tour is custom. This day is a starting point: your chauffeur will shape it around what matters to you, and we plan multi-day tours for guests who want to see more of wine country.
Up to 6 guests
Elite Luxury SUV
Lincoln Navigator or Cadillac Escalade
From $750
Six-hour wine tour, plus 20% gratuity. Additional hours $125 each.
Up to 9 guests
Jet Sprinter or Executive Luxury Van
Captain's chairs and room to spread out
From $1,350
Six-hour wine tour, plus 20% gratuity. Additional hours $225 each.
Larger groups travel in more than one vehicle, and we plan the winery appointments around your group, since many wineries limit groups to 6 to 8 guests. Tasting fees are separate and paid directly to each winery. Every tour starts with six hours; add time by the hour when you book.
Yes. The winery is open by appointment only, though appointments can be made with as little as 30 minutes' notice. When you book a tour with us, your chauffeur makes the reservation for you.
The winery does not publish its tasting fee on its website, so we confirm the current price when we reserve, as of October 2026.
Monday and Thursday, 3 to 6 p.m.; Friday and Saturday, 11 a.m. to 6 p.m.; and Sunday, noon to 6 p.m. It is closed Tuesday and Wednesday.
Andrew and Julie Moore. Andrew, the winemaker, spent nine years at Charles Krug before making his first barrel of Pinot Noir at home in 2010. The winery is named for their children, Kaylie and Kyle.
Small lots of Russian River Valley Pinot Noir and Zinfandel, along with Sonoma County Sauvignon Blanc, Cabernet Sauvignon and a Russian River Valley Rosé.
Reserve a six-hour tour online, even if your plans are still taking shape. Your chauffeur will email you first to learn what matters to you, then build your itinerary and make the winery appointments. Extra hours can be added.
Reserve Your Tour Now, Plan the Details Later
Your plans don't need to be final to book. Reserve your six-hour tour online, and your chauffeur will email you first to learn what matters to you, then build your itinerary and make the winery appointments. Prefer to talk? Call our concierge at 833-915-2436.
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