

Home Office, San Ramon, CA
San Ramon, CA

Since 1887, Mason-McDuffie Mortgage has operated under one idea: Your Financial Security Begins at Home. An employee owned company, Mason Mac works with one mission – to make the dream of home ownership a reality for our clients. We help to... Show More
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Reviews from Web
Gregg is an obvious subject matter expert in his field. knowing This made the process very easy for me because I trusted I could defer to his expertise. He is a clear communicator any questions were answered clearly and respectfully. I truly...
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Reply from Gregg Anderson
March 25th, 2026 05:24 PM
Kristann, thank you for your kind words. You were a pleasure to work with, and hearing your excitement when I talked with you, is the reason I am in this business! I will continue to stay in touch with you and help with your home ownership...
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Was an absolute pleasure working with Don . he made it so easy to get into my first home
Reply from Don Bartolomucci
April 13th, 2026 06:15 PM
Tim, I'm grateful for your kind words. It's appreciated to hear that I could make the process of getting into your first home easy. If you ever need anything else, please don't hesitate to reach out.
Thanks for helping us navigatate through this difficult process.
Reply from Katerina Stephens
March 16th, 2026 01:31 PM
I really appreciate the feedback and am looking forward to working with you again.
GREAT experence all aroung, execllent communication through out.
I will defiantly use and recomend Katerina for any future transcations
Reply from Katerina Stephens
March 16th, 2026 12:38 PM
I enjoyed working with you. Thanks for the great feedback.
Don helped us understand every part of the process- he is patient, kind, responsive and professional! You all are BLESSED to have him on your team!
Reply from Don Bartolomucci
March 16th, 2026 05:58 PM
I, too, enjoyed working with you the last few weeks. It has been My pleasure... Thanks for the great feedback.
Charles is professional, knowledgeable, very friendly and caring. He and his team always deliver great customer service and get the job done!
Reply from Charles Sterni
March 16th, 2026 06:17 PM
Thank you for the 5-Star review. If you need anything, feel free to give us a call.
Working with Don, who is extremely knowledgeable about mortgages, made m my transaction as simple and easy as possible. Highly recommend to anyone looking for a mortgage.
Reply from Don Bartolomucci
March 16th, 2026 05:56 PM
Chris, i enjoyed working with you as well. I hope we continue to stay in touch. Thanks for the great feedback.
Una experiencia maravillosa, son un equipo de trabajo muy profesional , trabajan con rapidez y eficacia , se los recomiendo
Reply from Owner
March 17th, 2026 12:00 AM
Thanks for the great review, we appreciate you! :)
We had an excellent experience working Nick, asalways! He is knowledgeable, efficient, and guided us through every step of the process with clarity and professionalism. His personable approach made what could have been a stressful process feel...
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Reply from Owner
March 14th, 2026 12:00 AM
Thanks for the great review, Kasey! We appreciate you! :)
We have worked with Jennifer in the past and we are very pleased with how things have gone each time
Reply from Jennifer Patrick
March 12th, 2026 05:00 PM
Thank you Taylor! It was a pleasure working with you again.
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About
Since 1887, Mason-McDuffie Mortgage has operated under one idea: Your Financial Security Begins at Home. An employee owned company, Mason Mac works with one mission – to make the dream of home ownership a reality for our clients. We help to fulfill that dream every day from coast to coast.
Over the years, we’ve made some changes to keep up with the times. Today, we work with the latest in technology to provide an efficient loan process for our clients. We utilize the latest in encryption and security services to maintain our client’s privacy and security, without sacrificing the convenience of a digital loan process.
One thing that hasn’t changed is our focus on people and relationships.
Products & Services
Mortgage Loan Officer
FHA Home Loan
VA Home Loan
Jumbo Home Loan
Mortgage Refinance
Year Started
1887
Time Zone
Pacific Standard Time (PST)
Disclaimer
To protect your personal information from unauthorized access and use, we use security measures that comply with federal law. These measures include computer safeguards and secured files and buildings.