From 30 reviews overall

Christie Gassen

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Reviews in O'Fallon
307 Sweetwater Ln O'Fallon
Christie is the best real estate agent I know. I have used her for several transactions and she has been amazing on all of them. Her market knowledge, problem solving skills, and professionalism is fantastic. She provides the feedback and expertise that can only be provided by someone that absolutely loves their job and their clients.
1338 Piasa Court O'Fallon
Christie is amazing! We were referred to her by a friend and we have zero regrets taking that recommendation. She was always professional and communicated with us every step of the way. It made the entire process so easy and she removed so much stress. She even showed up to check the a/c when we couldnt get to the house. Even after the sale, she continues to help us and thats so important for a family not from the area who is unsure who to call. We highly recommend her!
805 Belpre Drive O'Fallon
Christie was great to work with! She has vast knowledge of the real estate market and gave us invaluable advice. We had to work with Christie remotely and she was very helpful resolving issues with the house and coordinating the work. Best of all, she sold the house in December when we were told houses don't sell well that month.
County Winner
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St. Clair County2026City Winner
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O'Fallon2026City Winner
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Troy2026Avg. sale price
Sold (as lead agent)
Reviews in O'Fallon
1401 Keck Ridge Drive O'Fallon
Working with Dana was an amazing experience. She was very knowledgeable about the areas we were looking buy. She showed up multiple options within our price range. She went over and beyond the buying experience to ensure we were well informed at each step of the process all they way through closing and after. 10 out of 10 would recommend her for anyone looking to buy a home in the STL area.
Avg. sale price
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Reviews in O'Fallon
704 West Madison Street O'Fallon
Lisa was amazing though the whole process; finding a new house helping us connected to financial people to helping us sell the old house. It was long and stressful and she was very supportive and understanding. 5 out of 5 stars would recommend.
Avg. sale price
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Reviews in O'Fallon
932 Sturbridge Trail O'Fallon
Steve was absolutely outstanding in helping us sell our home. From day one, his strategy, market knowledge, and attention to detail were evident. He guided us through pricing, preparation, and marketing in a way that made the entire process smooth and stress-free. Thanks to Steve’s expertise, our home had 8 showings in the first week, resulting in multiple offers and a buyer almost immediately. His communication was excellent throughout—keeping us informed, offering sound advice, and making sure we felt confident at every step. Steve’s professionalism and results truly speak for themselves. If you’re looking for a real estate agent who knows how to position a home for success and deliver fast, strong results, we highly recommend Steve. We couldn’t be happier with how everything turned out.