The Mandois Champagne House was born in 1735 when the family decided to become the owners of vineyards in Champagne. Jean Mandois owns a few plots of land on the slopes of Epernay. In 1860, his great-grandson, Victor Mandois, decided to vinify and market Champagne wines in Epernay. Today, Claude Mandois, the 9th generation of the family, is at the head of the House based in Pierry, a village classified as a Premier Cru in the Champagne region.

The Maison Mandois vineyard extends over 40 hectares on the Côtes d'Epernay, the Côte des Blancs and the Sézannais, in twelve different villages such as Chouilly, Vertus, Pierry and Epernay, with a grape variety made up of 70% Chardonnay, 15% Pinot Noir and 15% Pinot Meunier. Some of the wines, especially the Grands Crus, are aged in the woods in demi-muids, 600-litre barrels, in order to respect the ageing of the wines as much as possible.

Maison Mandois owns a historic plot of 1.5 hectares, some of whose vines were planted in 1955: the Clos Mandois. This clos is located in the heart of the estate in the lower part of Pierry and is planted entirely with Pinot Meunier, a traditional grape variety from the Coteaux Sud d'Epernay. The first vintage of Clos Mandois was born in 2004.