For the past 20 years, has participated in many expeditions in North America, South America, the Himalayas and Karakoram.
Introduced to rock and ice climbing by his brother at 15, Louis has made several expeditions to the Andean Cordillera between 1999 and 2010.
These first trips allowed him to accumulate several ascents of mountains over 6000m. Starting in 2007, he began turning his attention to the great peaks of the Karakoram. That year, Louis summited Broad Peak (8051m) and climbed to 7350m on K2 (8611m).
In 2009, he climbed a new route on Nanga Parbat (8125m) and made two attempts on K2 (up to 8360m). His Himalayan tick-list continued to grow with an attempt, again with Gerfried, on Gasherbrum I (8080m) by a new route on the south face in the winter 2011 (the first winter attempt on the mountain.)
The following summer 2011 he attempted Gasherbrum I again (up to 7950m) via the Japanese couloir route, and summited Gasherbrum II (8035m). More recently, Louis went to Kyrgizstan to climb Khan Tengri (7010m).