The renovation of your showing room doesnt always mean you have to spend a huge budget. You can even safe more than half of Bad Renovierung cost from the constuction company tell you. Just get yourself understand first what you really want your showing room to be , then do the small research from text books from this field , as if you are the student. You can then forecast how much the budget you have to prepare. When you handle the price with the agency they will then realize how much you understand about the material cost in the market , they will then give you the very realistic quotation.