We do some repairs to wooden instruments and we stand by our work.  If it is something we feel might be better served in the hands of another craftsman, we will tell you so.  We are not set up to work on modern metal flutes.  Our shop rate is 100$/hr but most repairs usually take up to an hour and so this gives you an idea of what the price may be.  Please call our shop and leave a message regarding your repair questions.  Or drop an email.  Or you might stop in to discuss it in person – Best to call ahead.