Need to get new cushions for our couch

Our couch is relatively awesome, except for the fact that the cushions you sit on have lost all firmness. We'd like to get them "re-cushioned", but have no idea where to get this done. Does anybody know who could do this?

There are specialists around that can do this kind of thing. Look for a 'Polsterei' this link may help you with the search. http://www.gelbeseiten.de/branchenbuch/stuttgart/polsterei-stuttgart.html