Alex Castellano

Portrait photo of Alex Castellano

St. Louis

3537 S Kingshighway Blvd
Saint Louis, MO 63139

Office: 314-353-0336


Alex’s heart belongs to St. Louis. As a life-long resident, Alex is always out & about soaking up all the amazing things (and food) this town has to offer. As a SLU graduate she jumped right into a professional life as a Financial Analyst & the detail-oriented, punctual part of her loved that job but her kind, helpful nature wanted something more. Alex loves working with first-time home buyers to find new homes. Some of her favorite places are South City, South County, Brentwood & Webster.

Things you must know about Alex: She drives a stick shift & feels like she’s being lazy when she drives an automatic, she actually knows Fredbird (in real life!) & doesn’t know how to ride a bicycle. Alex & her husband love trying new restaurants & recipes & traveling.

Click HERE to visit me "At Home".

Ask Alex Castellano


We used Garcia Properties with the purchase of our new house. Our realtor, Alex Castellano was great. She walked us through every step of the process and provided us awesome resources for any areas we ...

- sk8rgui

Alex was professional, knowledgeable, quick to respond to any questions, organized, and very helpful when it came time to choose the right offer for our property. It was a joy working with her and the ...

- user7596543

Alex is highly professional and motivated to make her customers happy! We thoroughly enjoyed working with her. She went above and beyond to make sure we found exactly what we wanted in our next home! ...

- user1868234

This is the second time that we have worked with Alex to sell a property of ours. She is very professional, knowledgeable and has excellent communication skills. She is very diligent with the work she ...

- holland724

Alex was great to us! We were moving from out of state so her local knowledge was extremely helpful. I felt like she pointed out things while viewing homes that we wouldn't know to look for or what we ...

- Jennifer Bondar

Alex helped me buy my first home in the St. Louis area. I am not a local so she was able to direct me to the best neighborhoods for what I was looking for. She is smart, knowledgeable, and made the buying ...

- Alix

Alex's expertise of the home buying process helped put our minds at ease about purchasing our first home. Her knowledge and clear passion for her work helped make searching for the right home so much ...

- Jorden Brown

Alex was an amazing asset to have buying a house during this market. She took the time to understand exactly what I was looking for, was patient while we looked at houses that weren't just right, and ...

- Colleen Kinsey

Alex was awesome! Made the move easy and seamless in buying my first home. Alex is knowledgeable in the industry and St. Louis Area. Will use her and Garcia Properties again.

- joemcwilliams27

Alex was a great resource and realtor. I highly recommend her and Garcia Properties. I had been looking for a duplex in the city for quite some time and she stuck with me through the whole process. ...

- zuser20200516081849760

Alex was the first of three agents that we interviewed when we started the process to sell our house. We knew pretty much right away that we wanted to list with her when she answered all of our questions before we even asked them and because she is an open and honest person. This was our first time selling a house so she walked us through the process and ran us through her strategy for selling our house in Carondelet. Within two weeks we had our house ready to go and Alex set her team to work. We had several showings and an offer before the open house. Then when our plans changed and we decided to buy a new house instead of building, Alex was there with us through the whole process. She helped us narrow down the list and navigate the complicated process. In the end, and after a few very difficult weeks of inspection findings and negotiations with buyers and sellers (all of which Alex handled like the pro she is) we ended up in the house we wanted and it’s all thanks to Alex and her hard work. She has our referral to anyone and everyone wanting to buy or sell a house. Alex is the best!

- Joshua Holland

Alex was recommended to us by a friend. She has far exceeded our prior experience with a realtor. So much so that in retrospect it's pretty obvious that our prior realtor, 18 years ago, was working from self-interest, more than our behalf. Alex was clearly on our side as the buyer's agent. She did not steer us toward properties from her agency or that she was selling. She listened carefully to our needs and concerns, she was very honest when she had concerns about a property she showed us. Alex was responsive even on weekends or evenings. She kept us informed of property availability based on our specs. Once we decided on our new home, she walked us through each and every step. The home inspectors she recommended were outstanding and really went over our new home with thorough care. Alex followed up on all the red flags and contractual back and forth and did so much of the process of keeping everything on target that my husband and I (very busy people) had much less anxiety. I just can't say enough about what a great experience we have had with Alex Castellano. She is smart, honest, committed, thoughtful, and fun. She is also aware of the history of housing discrimination in St. Louis and is a hopeful new partner in helping change that for the better!

- Rebecca Ragland & Scott Ragland

We could not have asked for a better agent and we highly recommend Alex to anyone! We started going to open houses around St. Louis on our own to see what kind of things we liked and ended up meeting Alex at a couple of them. When we finally decided to get serious about buying we reached out to Alex because she struck us as professional, knowledgable, and friendly. It was one of the best decisions we have ever made! We were first-time home buyers so Alex met with us to explain the whole process. She started introducing us to her network of other professionals, starting with our eventual mortgage broker. Alex is an excellent communicator, she always used the right tool (text, email, phone, etc.) for the right situation. By going to open houses with us and getting feedback from us on listings/upcoming listings, she quickly figured out the kinds of things we were looking for in a house and in about a month we were putting an offer on a house. The market was very competitive and Alex helped us build a strong offer that was accepted. Throughout the entire negotiation process Alex looked out for our best interests and was always honest and direct about where things were at. Alex has an amazing network of professionals for inspections, insurance, etc., you name it. We don’t regret a single choice of person or company she suggested we work with, and because she had such a great network it really made things run smoothly for us. Home buying is still stressful of course and we could not imagine having done it successfully without Alex.

- Noah Fahlgren