Learn French in Switzerland at École Ardévaz-SLS, French Language School in Sion

allemandÉcole Ardévaz-SLS is located in the city centre of Sion, in the Swiss Alps. We have been proudly teaching French to international students since 1979. We offer a wide range of courses for those who want to study the French language for professional or personal use. We believe in offering personalized education programs to our students, which is why we only offer a limited number of students per class.

A language school to learn French in Switzerland

EnseignementÉcole Ardévaz-SLS has a proven record of success, with many of our students returning to further their studies and develop their French language skills. Read on to find out why we believe our French language school stands out among the others.

The quality of our teaching methods relies on 5 successful factors


  1. French courses in small groups of 2-7 students
  2. Engagement for the Quality of our French courses
  3. Personalized attention and teaching to each student
  4. Student-oriented Teaching approach
  5. Strong support to our students as École Ardévaz-SLS is a family owned school