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All Of Our Written Reviews

At Century 21 Northside we use the RealSatiesfied testimonial service after every purchase or sale.  Those RealSatiesfied surveys are sent out automatically from my office and the boss reads them.  I’m proud to say my ratings are very high and my former clients recommend me frequently.  I am elated when a client puts in a stellar review after a long hard sale or purchase.  Their testimonials make my day.  Click here to read all my RealSatiesfied surveys.

We also receive reviews on Zillow profile page,, and other websites.  You should check those out and after reading all these contact us!  We would love to be your realtors.

Ryan & Leslie’s First Home Together!

Helping Her Move in More Ways Than One

“Mark Castricone did an outstanding job in getting my house sold in such a short time. He was always available to answer my calls regarding questions or concerns.

Mark is a very hard worker, responsive, a great negotiator, and really looked out for my best interests as a client. He put in a lot of effort to get my house ready for sale, including getting the decluttering process started, staging and photographs. My house did not have a lot of upgrades, but he was able to show the house in its best light. He found a company that was able to clean my carpets which were in poor condition to a better showing condition. The air conditioner was not putting out cold air a day or two after the buyer looked at it, and Mark got a company out that day to take care of this for me, at a reasonable price and saved me the stress of handling one more detail.

I appreciate all his efforts to get this accomplished in a timely manner. My house sold after the first buyer looked at it at a price that I was very pleased with. I am working on simplifying my life, and this sale has moved me in the right direction.

I would highly recommend him to anyone buying or selling a home.


Beverly Bentley” – San Antonio, Texas (Seller)

It’s Tough Selling When You’re Out of Town

“Mark and Daisy did an amazing job as our realtors. They made what could have been a time consuming and stressful job of selling a house from out of state about as seamless and stress free as possible. They did everything from finding people to make repairs to our house to advocating for us when they felt we were not getting the best deal. They were ALWAYS reachable, ALWAYS polite, and ALWAYS on point. I cannot recommend these two enough. We even ended up closing early, which saved us a significant amount of money. Do yourself a favor and hire these two as your realtors. You will not be disappointed!” – Connie and Casey Wilson, Seattle, WA. (Seller)

New Mommy, New House

“Mark was very available to look at houses. He was very knowledgeable of the areas within the county and helped us to pick the perfect house for my family. I would recommend him to any one looking for a house. He did a wonderful job in negotiating our purchase.  Mark was always accessible for asking questions and for looking at properties. He is very knowledgeable and was easy to talk too.

I had a wonderful experience with Mark. He took the time to show us a lot of houses before we found the one to purchase.  Mark was very patient with me and my daughter and took a lot of time to make sure we found the right house for us.” – Irene Merklin Lake Worth, Fl (Buyer)

 From Aviano Italy to San Antonio!

We were referred to Daisy Castricone from a mutual trusted friend, whom had her as a broker. We were always taken care of in our home finding adventures and Daisy was extremely accommodating to our interests, in finding the right home that would meet out immediate and long term needs.
Daisy’s savvy knowledge of the local market, the timing of our intended purchase and her exceptional graciousness made the process go as smoothly as we could have dreamed for overall.
I must not to forget to mention that Daisy made the experience FUN too! We will definitely refer others to Daisy Castricone and Century 21 Northside!
Maj/Dr. Brooks Goettle DNAP, CRNA, USAF, NC

5 Stars on Zillow!

“Mark is an excellent Realtor. Any Buyer would be lucky to have him represent them. He understands the buyers needs and communicates with them during the entire process.” – Dama Jackson Lennar Homes

Off  To Oklahoma

“Great agent I nominate him to be realtor of the year Great personal help its like the property is his.  Helped us with repairs even we live out of state,  we didn’t need to be present.  Flexible understanding respectful keep you informed positive optimistic.  All and all it was pleasure to work with him and his sweet wife.” — Sam Horani (Seller Honey Hill)

From Point A to Point Z

Rose was in a tough spot having to close the sale on her home and close on the purchase of her new home . . . on the same day!  We waited with her all afternoon and so glad it all worked in the end.  Thank you Rose!

“Mark is a fantastic salesperson. He is very knowledgeable of the business and took great care in ensuring he could assist me in any way he could.

Mark and Daisy were so great. They even helped me do a final move out clean up the day I sold the house! Without their help it would have taken me into the wee hours of the night.

Although the house sell process was stressful, Mark and his team made it bearable.” — Rose Ann (Seller CR 2766)

Robert is My #1 Roofer!  Glad to Help Him Out

“Mr Castricone came to me for a job. When I dealt with him I immediately saw that he was a good agent. This is why I asked him to sell my property. He was always in contact with was letting us know how everything was going. Giving us a helping hand when needed. Giving us advice and comments. He grew on us through every step of the way. I would strongly recommend Mark Castricone to friends family and anyone I might just run into. Mark is a knowledgeable, kind, helpful,friendly, person to deal with. Mark made it happen.  Thank you for dealing with us.”
– Robert and Connie San Antonio TX 

16 Days!

Another satisfied and happy couple. That’s what really makes the difference for us. Quality service.


When you’re ready to move on in life the last thing you want is to be stuck with another mortgage payment. Thank you for the endorsement Greg.

“Our house was previously listed with no action, over 3 months, to sell. Mark and his team came in and took over the listing and sold our house in about two weeks.
We were very pleased with our experience with Century 21 and Mark and his team! ”  – Greg & Victoria Smith (Sellers Robin Willow)


We Love Our Military Clients

“We presently have our home for sale under the professional services of Mark and Daisy Castricone with Century 21. Their services have been exemplary at every level of real estate dealings. They interact professionally, positively, and can problem-solve at every level of expertise. Mark and Daisy has developed sales and marketing skills with excellence in everything they do. Their services are invaluable in the recruiting, training, and supervising of an effective and high quality sales team which has generated one to two showings per day since we placed our home up for sale one month ago. My husband, George and I have found their services to be the best in the industry with our multiple moves throughout a 20-year military history.” – Nancy & George Eastman (Sellers Rio Springs)


Moved to Maryland & We Took Care of the House

“Mark and Daisy were an amazing team. I was stationed in Maryland and trying to sell a home in Texas. They took care of every detail. Even through hail and storm damage that needed repair. I couldn’t recommend them any higher. If you are looking for a realtor in San Antonio. They are the team you want trust me.” –Scott Brocious Maryland (Seller Dwyerbrook)

Andrea’s Real Estate Adventure

Andrea has gone through a serious little real estate adventure.  She’s sold her home with us in New Braunfels.  Her mother sadly passed away, and Andrea is now living in her mother’s former home.  Now she’s looking in the Canyon Lake area and we’ve found her a place.  It’s just a matter of time now that she can finally settle in and unpack the boxes.

From Afghanistan to San Antonio

All the way from Afghanistan! And now they’re home. It’s so good to see such a young bright couple have a place of their own to raise their little one. Good Luck Tyler & Heather!

The Best Christmas Present!

“Mark Castricone is a great person to work with who actually cared about my needs and requirements during the home buying process. This is my second time buying a home and I am a lucky to have Mark Castricone as my realtor. In a near future I am thinking of buying another home, hope to work with Mark Castricone again. Thank you Mark Castricone!! Happy Holidays!!”  — Rogelio Cardenas (Buyer)

No Problem That Didn’t Have An Answer


Happy Accident

“It was by pure accident. I contacted Mark Castricone office because my property was a rental and I had considered putting the house up for sale. When I contacted Mark his office was working with my tennant on a rental property Mark was managing at the time. One of Mark Castricone agent was working with my tennant at the time on a rental property. That is when I started talking to Mark about possibly putting my house up for sale. Within a few days Mark called and told me he had a possible buyer and that really got us excited about selling this property. I knew we had to invest some money and get the house as perfect to sell as possible. We did and the house sold with in 4-6 weeks. After all was said and done the sale of the house went pretty smooth. I know when a friend or relative of mine needs help selling their home I will recommend Mark Castricone to them.” – Juan Gonzalez (Seller Eland Dr.)


Family Is Very Important To Us

“Mark is a great guy, and gets the job done. Mark told me from the beginning what he was going to do to get the house sold and he definitely got the job done. Mark communicated very well with me on the process of things and was always available for me when I had questions. I will recommend Mark to friends, and family because of his work knowledge, great communication, availability and trustworthiness.  Thank you again Mark for your great work.” – Johnny Ruiz (Seller)


Results Matter

“Mark is great he knows what he’s doing and worked with us to get the best results.  Its always really great dealing with Mark very nice and communications were very professional and consistent.” – James Heinen, San Antonio (Seller)