Denis was born in Montreal in 1960. He is the youngest in his family and has two older sisters named Louise and Michele. His parents, Janine and René, bought a country inn in Saint-Paul-de-Montminy when he was 3 years old. He worked in a mill and hotel until 1986. He then moved to Montreal to work in construction and met his wife with whom he had 2 children: Dérick and Fannie. He moved back to St-Paul and bought his house. He returned to Quebec City to work in the construction industry in 2005.