







Sergio D'Agostino sold a property for us. He competently and dedicatedly took care of all matters throughout the entire sales process, ensuring that the sale could be handled smoothly. The collaboration was always constructive, professional, and pleasant. We can recommend him without reservation.
Christian Schweizer has been advising me for many years and has sold an apartment for me twice. I have had very good experiences. Mr. Schweizer is very pleasant, addressed my wishes, and efficiently found a suitable buyer with care and humanity. All contacts related to the sale with the bank and authorities were handled by him. I received professional advice for my own financial matters. I would reach out to him again at any time. Highly recommended.
The collaboration with Quartett Immobilien and Ms. Gojani is always courteous and efficient. I greatly appreciate this!
Very friendly and competent. Great, as viewings can also be done in the evening and on weekends. Really very dedicated. Also always reachable via WhatsApp if you have a question.
I was accompanied by Edoardo Köppel and Köppel-Legal AG during the sale of my 2.5-room apartment on Rossweid in Sins and was very satisfied with the collaboration. The initial assessment of the apartment and the realistically achievable selling price was understandable, honest, and well-founded. The professional preparation of the sales documents and especially the successful photos made a very good impression. Throughout the entire sales process, Mr. Köppel was reliably reachable, responded quickly, and kept me informed transparently about viewings, feedback, and the next steps. I particularly appreciated his calm and solution-oriented approach with sometimes demanding interested parties, who initially backed out, later agreed again, or tried to significantly lower the price. Mr. Köppel conducted the negotiations consistently and with the necessary sensitivity. Despite these challenges, the apartment was sold at a higher price and without unnecessary complications. I felt well taken care of at all times and can recommend Edoardo Köppel and Köppel-Legal AG without reservation.
Super competent advice, support from A to Z characterized by honesty, reality, relevance, and respectful interaction, including my seller wishes. I am very grateful to Ms. Stadelmann for the excellently conducted house sale. I can only highly recommend S. Stadelmann Immobilien AG.
if someone can sell, then only Roberto - sure, experienced with so much patience and passion. The best decision to sell with Roberto. Always happy to do it again. THANK YOU!
Five stars from the heart! I bought my condominium through Tree Real Estate AG / Real Advisor and I am completely thrilled. From the first viewing appointment to the handover of the keys, including the notary appointment, the collaboration was extremely professional, transparent, and reliable. Inquiries were always answered promptly, and I felt excellently advised and supported throughout the entire purchasing process. Thank you very much to Mr. Benjamin Demir.