As far as I know, schools do NOT provide permits, but might help give attestations (of subscription) or information about how to apply for a student visa. Check the following link for an exmaple of a language school in Geneva:

http://www.elfi-geneve.com/visa.php?lang=en

If i remember correctly, a visa/permit request based on a language course should be for courses of at least 20 hours per week (translates to an intensive course of at leats 4 hours per day, 5 days per week). Such intensive courses would cost around 1000 chf per month (check https://www.ifage.ch/offre/langues/francais/francais-general) for courses' example in a well-reputed language school in Geneva).

Good luck! :-)

Sinan

Thank you! but that sounds sad and way worse than the info i had.. :(

Hi,

Do check out the first language school Sinan recommended - ELFI . I am taking classes there and would recommend it to anyone interested in learning French. 

Classes are Mon -  Fri, 3 hours a day. Monthly tuition fees are chf 670 per month.

Please note, as with any legitimate school, you are required to attend your lessons, otherwise the school is obliged to inform the authorities that you aren't goi for lessons.

The school admin will also be able to guide you on the correct procedure to follow (the do's and don'ts ) of applying for your student permit.

Bon Courage