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Gilbert Castillo III is an experienced Branch Manager with a proven track record of reputable accomplishments in the Real Estate and Financial Services industries. Currently Gilbert oversees all facets of the Phoenix Greyhawk Branch including sales, marketing, production and operations. As a Licensed Mortgage Loan Originator with 25 years' experience in the Arizona market, Gilbert provides a wealth of knowledge to those who seek assistance.

Mortgage Calculator

Buying a home is a big investment with expenses you may not have thought about. Use our mortgage calculator to estimate your mortgage payment, including taxes and insurance.

Please enter a valid home price


30-Yr Fixed / 0% Interest
  • Principal & Interest $0
  • Property Tax $0
  • Homeowners Insurance $0
  • Mortgage Insurance $0

Additional Calculators

How Much Will My Payments Be?
Calculate your monthly payment with applicable finance charges, PMI, hazard insurance, and property taxes.

Mortgage Principal Calculator
This calculator allows you to "peek into the future", allowing you to see the remaining balance of your mortgage after several payments.

Affordability Calculator
How much can you borrow from a lender? Use this calculator to calculate the amount you can afford from the lender's point of view.

Mortgage Length Calculator
This calculator will help you to determine your savings if you make larger monthly payments.

What if I Pay More Every Month?
See how your mortgage will be reduced, if you pay $$$ more every month.

Should I Refinance?
Is your old APR (Annual Percentage Rate) too high? Estimate the benefits of refinancing using this calculator.

Tax Benefits Calculator
This calculator will calculate your tax savings after a house purchase. Financial analysis includes first year as well as total tax savings.

Should I Pay Points to Lower My Interest Rate?
Calculate how much points affect your monthly payments and how fast they will pay for themselves.


Gilbert Castillo and the team AmeriFirst Financial were fantastic. I would highly recommend them to anyone in need of loan or refinance. The staff was completely professional, the turn around was quick and the closing was a breeze. Best of all I have a loan rate that is ... READ MORE Theresa Saldivar Theresa Saldivar
Working with Gilbert and his team was very easy and they were accommodating with all of my questions along the way. I would definitely recommend Gilbert and his team to friends. Robert D Normington Analyst
We can’t express how happy we were in our home loan process! Gilbert is the master of getting it done on time, simply, to the point, no fuss/no muss. We will highly recommend him! Anonymous
Highly recommended is the Amerifirst Office under the guidance of Gilbert Castillo. I was most impressed with his insite in what might be better in the refinanacing of our loans and his presentation for approval. The professionalism of his staff resulted in quick turn around, less ... READ MORE barbara e mccarthy Home CEO/CFO
Gilbert made everything easy and seamless. He and his team were always pleasant and accommodating. Chuck Walker Design Manager
Gilbert did great!! Helped me with all questions I had very quickly. Austin Wunder Austin Wunder
If you’re in need of a highly professional loan officer who shows complete command and control of the process Gilbert is the guy to see. I appreciate the way Gilbert handled my refinance business. Yes, he was pleasant. Yes, had a can-do attitude. Yes, got me a great rate. ... READ MORE Todd F Redfern Media Director
Gilbert C not only did an outstanding job, he did it with such expediency. He recognized the time constraints with applied commitment and dedication. GJones Retiree
From Gilbert and Jaime to underwriting... everyone I encountered or communicated with were professional, courteous, and easy to work with. The process is smooth and easy to use. Would use Gilbert and his team again any time! Thank you does not convey how appreciative I am of him and his team. Melissa Mayoral Melissa Mayoral
Thank you to everyone at Amerifirst for such and quick and great job getting my refinance done. I highly recommend this office and and all the great people. Tina Palley Director of Manufacturing
Gilbert and his team did an amazing job. They made my homebuying process an enjoyable one. I would highly recommend. Sera Ribble Restaurant GM
Absolutely loved working with Gilbert and his crew. When we were ready to purchase a home he was very quick to respond to my emails, phone calls and answered any questions I had no matter how crazy. He made sure I knew the best options for what I was looking for. I woukd definitely recommend him Mandy Brehm
Mr. Castillo was very helpful to me in obtaining my first home, I was treated well by him and all his associates throughout the process. He gets my recommendation as a consummate professional. Very friendly and genuine. Thank you Sir. Sincerely Glen Naillon Glen Naillon Tradeshelper Housing Dept. City of Phoenix
Gilbert and his team did a wonderful job with my loan. When I had questions and they answered my questions right away. Also they explained everything to me that I need to know for my loan. They even had meetings with me to talk to me face to face. To talk to me about how we where doing ... READ MORE Manuel castillon Survey
Gilbert is truly a professional in all aspects of the mortgage process. He and his assistants made what can be a long and nerve racking process a smooth and easy road all the way to the close of escrow. I would recommend Gilbert and his team of pro's to anyone seeking a mortgage loan. Ron Ron Pippett Realtor
Gilbert was wonderful! He responded quickly to all my questions! Kept me in the loop of my transaction! Gilbert, made this process stress free and did everything possible to satisfy my needs as a result we were able to close early. I will highly recommend Gilbert to my family and ... READ MORE Sandra Cardenas Escrow Assistant
Easiest closing I have experienced. I never had to wonder where we were in the process. Thanks for a great job Julie Evenson Th
Working with Gilbert and his team was AWESOME for a FIRST TIME HOME BUYER!! I started the process with another lender. The process started great. But after a few weeks they started ignoring my calls and emails. Gilbert and his team picked up the process and I closed within 20 DAYS!! ... READ MORE Jeanette Rawlings Jeanette Rawlings Legal Administrative Specialist
Working with Gilbert and his team was AWESOME for a FIRST TIME HOME BUYER!! I started the process with another lender. The process started great. But after a few weeks they started ignoring my calls and emails. Gilbert and his team picked up the process and I closed within 20 DAYS!! ... READ MORE Jeanette Rawlings Jeanette Rawlings Legal Administrative Specialist
I am a first time buyer and I had a lot of questions and needed a great deal of clarification on the process. Gilbert and his team were patient and supportive and never hesitated to answer my questions about the process. They were always available and responded to my calls, emails and ... READ MORE Lori Lyn Pizzo Principal K-8 School
Very friendly to work with. Customer satisfaction came first in my situation. Gilbert also made it easy enough for an 8-5 employee to sign everything over digitally. Dino Mehinovic Legal ssistant
Gilbert Castillo was extremely professional and easy to work with. It's the best experience I've ever had doing a refi on a home. Top notch!!! Emilio Castillo Home owner
Gilbert Castillo and his team at AmeriFirst Financial are amazing. As a first time home owner, they helped me apply for my first mortgage and navigate through all the required documents accurately and quickly. He and his team were always so willing and available to answer all my ... READ MORE Kathleen Doyle Service Assurance Agent
The whole process of financing our vacation home was very smooth and professional. Gilbert and his people made it very convenient for us and we are very happy with the experience. This is not our first time working with Gilbert as he has been a part of our home buying experiences for many years. Gary Bisgaard Customer
Gilbert was fantastic, he really calmed me at the beginning of the process as I was getting overwelmed with info, he calmly walked a thru the process. He always answered my phone calls promptly and kept me in the loop of the whole mortagage process. His associates were very friendly ... READ MORE Gerald M Zuba Retired
Mr. Castillo pursues the satisfaction of his client with a unique combination of tact and tenacity rarely seen in any professional realm. Reyes Medrano, Jr. City Manager
I have done several loans with Gilbert and he never disappoints. He is a man of his word, gets things done on time, and is courteous and professional. He understands the process and attempts to make it as painless as possible for the borrower. He is a top professional and I would ... READ MORE Larry De Respino
we almost gave up our dream to have our own house but Gilbert Castillo made it possible without any doubt that we can have our dream house. We are really grateful that our realtor agent found Gilbert to helped us on our dreamed to have a home. Marco  Buezo Marco Buezo Buyer
Sometime the best things happen without you being aware, and that's what made working with Gilbert so wonderful. Everything that could be handled for me, was. As a result the entire loan process and home buying experience ended up being a smooth process from start to finish. I ... READ MORE Chris Guerra Project Specialist

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