An architect I have worked with uses this firm. They are in Rheinfelden. http://www.fela-fenster.ch/web/
I know clients who were very happy with his work.
He does not not charge to quote. Some of the other firms do. If you give them the work they apply the cost of the quote to the work. If you go with another firm you pay for the quote.
So do ask before you call around for quotes or you might be unpleasantly surprised. Unfortunately some do not tell you on the phone that they charge to come out to quote. So now as a rule of thumb I ask in advance.
I consider the cost of doing a quote part of the cost of doing business. You don't get work if you don't quote, right?