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About Us

Sergio and Carolina Weitzman - Proprietors

SERCA Wines was born as a result of a longtime dream Houston residents, Sergio and Carolina Weitzman, had of creating an ultra-high quality wine.  SERCA is a 6-acre vineyard, divided into two parcels, located in Uco Valley in Mendoza, Argentina. One 3-acre parcel located at 1,300 meters above sea level produces Super Premium Malbec grapes and the other 3-acre parcel located at 1,150 meters above sea level produces Super/Ultra-Premium Malbec, Merlot, and Cabernet Franc grapes. The grapes from these parcels are used to create various SERCA wines including a high end reserve Meritage, the Gran Corte, which has received 92 pts from Wine Enthusiast in its first vintage release in 2013 and 90 pts or above by many other rating institutions up to our current release, the 2020 vintage.

 

Every year at their vineyard, Sergio and Carolina truly enjoy watching the fruit being hand harvested and selected, transported to be cleaned at the winery, and then transferred into the fermentation tanks and barrels.  Only grapes that are the healthiest with a perfect balance between sugar concentration and acidity are used for all of the wines produced by SERCA.  Year after year, the Uco Valley area continues to generate amazing fruit with beautiful, rich color and polyphenolic concentration.  The wines continue to get better with time.

 

Now they get to share their dream and their wines at their private tasting room in Houston, Texas. 

Our Team

Pablo Martorell

Head Winemaker, The Vines of Mendoza

Born and raised in Tunuyán, in the heart of the Uco Valley, Pablo Martorell brings together deep local roots and extensive international experience in his role as Head Winemaker at The Vines of Mendoza. Over the course of his career, more than 200 of his wines have received international recognition from leading publications such as Wine Advocate and Wine Enthusiast.

Pablo has worked with some of Mendoza’s most esteemed wineries, including Catena Zapata, Bodega Nieto Senetiner, and Flecha de los Andes, where he collaborated with renowned winemaker Michel Rolland. His international training spans top wineries in France—such as Château de Lauret in Pomerol and Château Peyre-Lebade and Château Clarke in Médoc (Rothschild Group)—as well as Napa Wine Company in California.

Today, Pablo oversees the production of more than 500 unique wines each year at The Vines, working hand in hand with private vineyard owners to bring their personal wine visions to life. He is also the founder of his own label, Tierra de Dioses, and is currently building Matervini, a new winery project with Santiago Achával. When he’s not in the cellar, Pablo enjoys skiing, riding motorcycles, and spending time with his wife and three children.

Mariana Onofri

Wine Director, The Vines of Mendoza

As Wine Director at The Vines of Mendoza, Mariana Onofri leads the wine program at The Vines Resort & Spa and plays a central role in developing educational content for The Vines Global. A certified sommelier with international training, she has built her career through hands-on experience in both hospitality and winemaking—starting at La Bourgogne in Mendoza and Uruguay, and continuing with internships in Napa Valley and France.

Since 2007, Mariana has worked closely with Private Vineyard owners, guiding them through every stage of their winemaking journey—from selecting grape varietals and defining wine styles to leading blending sessions and tastings. Her approach blends deep technical knowledge with a gift for storytelling, helping each owner craft wines that reflect both personal expression and a strong sense of place.

In addition to her role at The Vines, Mariana produces her own acclaimed label, Onofri Wines. She lives in Mendoza with her husband, sharing a love for nature, animals, and the slower rhythms of life among the vines.