Testimonials and Credentials:


Call: 1-800-995-8242 or 925-518-1124 To Schedule

Your Home | Condo | Pool | Infrared Inspection Today!

Request and Schedule your Inspection by Email - orderinspections@castlerockinspections.com

Please provide: Your Name, Phone no., Email, Property Address, Square feet , Age of property


Continuing Education and Certification Credentials :








Tirso is a seasoned Home Inspector. He's really knowledgeable about the
latest codes, local ordinances, and most of all, he's very involved with
the local Association of Realtors.

Jojo Soriano CENTURY21 Realty Alliance


Deepal Karunaratne
REALTOR at Coldwell Banker Guidance Realty

Hi Tirso De Ubago,
I wrote this recommendation of your work that you can include on your LinkedIn profile.

"I have used Tirso's Home Inspection services many time. He is a very detail oriented
home inspector who goes through every little detail on the building he inspect and
provide very detail reports that easy for anyone to understand. His vast knowledge
on Home inspection gives a huge value to the home buyers and it has been a privilege
to obtain his services. "


I am a Broker in Walnut Creek and have used Tirso to inspect several properties over last 5 years. I find him very reliable, capable and honest towards his work. I will continue to use him and certainly would recommend him to my clients.

J Deepak - Walnut Creek CA


Personable, professional and knowledgable. I'd call Castle Rock for a home inspection again anytime!

Luba M. - San Francisco CA


I worked with Tirso on and off for the past 8 years he is very reliable and is very professional at what he does. I would recommend Tirso to anyone who needs a good Home inspector.
My Name Is Javier I'm an Agent and I approve this message....


Hi Tirso,

I want to thank you for your diligence, efficiency, promptness and patience with my clients.
Elena M.
C. Banker – Walnut Creek


Maria Vinzon
Manager at Prudential CA Realty
I have relied on Tirso's expertise in aiding my buyers in their property purchase decisions. He does thorough inspections and provides detailed reports.


I have asked that Tirso of Castle Rock Home Inspections to meet you at 2:30 at xxxx Shuey.
He is very well known and respected in the local real estate community.
S Benson
Ex Brokers,sm
Real Estate Group


Jesse Rosete has recommended your work as Chief Inspection Officer at Castle Rock Home Inspections.com.
Dear Tirso,
I've written this recommendation of your work to share with other LinkedIn users.

Details of the Recommendation: "Need a professional inspection? Hire Castle Rock home Inspection. Tirso has extensive expertise in both home and commercial inspections. Thourough, insightful, always up to date on current inspection trends, resourceful; very personable, consistent and reliable. I've hired Tirso on many projects and will continue to do the same in the future."
Service Category: Real Estate Agent
Year first hired: 2007 (hired more than once)
Top Qualities: Great Results, Expert, High Integrity

"Hi Tirso, It was a pleasure meeting you today! I am pleased to have made the choice to select your home Inspection services You made what could be dry and tedious process...fun, professional and educational. " - Wendy L - Realtor Antioch


Johnny Huang, MBA, Associate Broker-Realtor, Keller Williams Realty (business partner)
was with another company when working with you
“I used Tirso with a first time home buying client that was real nervous. He took the edge off them by inspecting the home and pointing out all his inspection spots. He felt relieved when they didn't find anythign major, however, Tirso went above and beyond when he offered to come back a second time to check an inaccessible area (cluttered crawl space entry) to check the crawlspace. He showed true expertise in inspecting a building. I would use him again.”


Jim Marshall, Sales, Lamorinda floors (business partner)
was with another company when working with you
“I have been associated with Tirso for over 5 years and work along side with him at the Contra Costa Area Realtors meeting each week. He has a very good reputation about both himself and his business for those that have used him for his services. He has been very active in the community in other venues and has always carried himself very professional. His vast knowledge of his work is beyond what others in his field have to offer.”


Hi Tirso,

We just wanted to thank you again for putting the time and effort to do a thorough inspection of our future home in American Canyon. We appreciate all the tips and recommendations you shared with us. We will definitely be in touch!

Thank you and you’re the best,

A M and J Santos
(and our little ones - Bianca and Justin)


Craig Bosse(client)
Craig hired you as a General Contractor in 2011 and hired you more than once
Top qualities: Great Results, Personable, Expert

“Tirso is very knowledgable about home inspection and very personable. He knows the codes inside and out. I would recommend him to work with your clients.”


Jason Wheeler, Sr. Originator - Mortgage Broker - CA Bay Area Real Estate Home Lending - Walnut Creek CA, C2 Financial Corporation (business partner)
was with another company when working with you
“Tirso comes with my highest recommendations. He is always looking for new ideas to assist his company, clients and colleagues. I admire him for his creative work and his willingness to "give first". You would be doing yourself a favor to align yourself with Tirso as I have. Respectfully Submitted, Jason Wheeler”


Mauricio (MOE) Rodriguez, Termite Inspector, Concord Termite Control (business partner)
was with another company when working with you
“At the times when I had the privilege to work alongside of Tirso, I noted that he is an “attention to detail” inspector with character and an attitude of service towards his clients. Added to that is his continuing growth of knowledge and improvement in all the aspects of home inspections. The commitment towards his clients is noticeable.”


John Pearson(client)
John hired you as a Property Inspection Company
Top qualities: Great Results, Expert, High Integrity

“I called on Tirso at Castle Rock Inspections for my rental property. Not only was he punctual, but the inspection went nice and smooth. He even took the time to talk to me about several questions I had regarding the property. The biggest surprise was that he completed the the inspection, then e-mailed me the completed report right then and there! He also does high-tech inspections using thermal imaging and so much more than I expected. I definitely recommend Castle Rock! 5 Stars and I'll call him again for my next inspection need!”


Eduvi Jewell, Licensed Realtor, QSC Platinum, Certified HAFA specialist, an Affiliate of Harcourts Int., Altera Signature Properties (business partner)
was with another company when working with you
“Tirso De Ubago is an excellent home inspector. On many occasions, Tirso has performed thorough inspections to make sure that my clients real estate purchases are solid investments. Tirso takes everyone involved, from buyers to agents, through the inspection process so that there are no unexpected delays or surprises along the way. I highly recommend Tirso De Ubago to be your next home inspector.”


Gary Smith(client)
Gary hired you as a Home Inspector in 2005 and hired you more than once
Top qualities: Personable, Expert, High Integrity

“Tirso is an excellent home inspector whom I have referred in the past and used on my last purchase. He is up on the latest tech in his field and also is a great networker.”


Sandra Padilla(client)
Sandra hired you as a Home Inspector in 2005 and hired you more than once
Top qualities: Great Results, Expert, High Integrity

“I have hired Tirso from Castle Rock Home Inspection to perform home inspections and he has always been efficient and professional. Always taking his time to explain to buyers any issues found with the home. I would recommend Tirso to all my friends.”


George Moody III, Direct Lending Mortgage Advisor, RPM Mortgage Inc. (business partner)
was with another company when working with you:
“As a service provider in the profession of real estate lending, Tirso has demonstrated a role of leadership in his area of expertise. He is on top of his game and educates me with new laws, changes and and the latest in inspection equipment to ensure the the proper health and safety guidelines are met. When buying or selling a home in this market, it's important that the property have a certified home inspector who stays up with all of the current codes and and safety regs like Tirso and Castle Rock Home Inspections does.”


Arlene Gaspar(client)
Arlene hired you as a Home Inspection in 2005 and hired you more than once
Top qualities: Expert, Good Value, On Time

“Tirso has been a tremendous addition and help to my being a real estate agent. He has been very professional in everything he does. He responds promptly when I contact him, either by phone or e-mail. He gets the job done the same day. He answers questions based on his professional knowledge and long years of experience and he is current on codes needed for him to be exceptionally competitive among the few. It's been a pleasure working with him since the day I started working with him.”


Dana Wellington(client)
Dana hired you as a home inspector in 2011 and hired you more than once
Top qualities: Great Results, On Time, High Integrity

“Tirso is a very complete home inspector, explaing to the home owner the intricacies of the inspection and even explaining to the listing agent problems that need to be taken care of before close of escrow.”


Ernest Villafranca(client)
Ernest hired you as a Home Inspector in 2004 and hired you more than once
Top qualities: Great Results, Personable, Expert

“Mr. De Ubago is one of the best home inspectors I've had the pleasure of doing business with. He knows what he is looking for in houses. He listens to his clients, and he delivers his reports right away. I've also met Mr. De Ubago at networking events of the National Association of Hispanic Real Estate Professional, NAHREP, where he has been an active participant. He has always been professional, personable, and I'd recommend him without hesitation.”


Cary Amo, Realtor, P&P Sotheby's Realty (business partner)
was with another company when working with you
“Tirso is an efficient and competent home inspector. His use of thermal technology for inspecting behind hard surfaces for water damage or electrical issues is very important in today's real estate market. I recommend him highly.”


Renata DeMello(client)
Renata hired you as a HOME INSPECTOR in 2011 and hired you more than once
Top qualities: Great Results, Personable, Expert

“Tirso is simply great! He will go above and beyond to make sure the home buyer truly understands the process of inspections during the purchase of their home. I highly reccomend Tirso for all home inspections.”


Belina Dominguez, Realtor/Certified Distressed Property Expert/Graduate Realtor Institute, Re/Max Active Realty (business partner)
was with another company when working with you
“I met Tirso De Ubago during my broker's open In Vallejo, CA. Tirso is very knowledgeable in his field as a property inspector. He's very involved with several seminars helping educate realtors. He is very personable and I would highly recommend him for a property inspection.”


Tess Crescini ·Broker, Heritage Homes & Investments (Client)
Best property inspector in the Bay Area! Very professional and the reports are easy to read complete with pictures. I would recommend his services to real estate professionals needing inspections.


* FHA Certified Compliant Inspector
* (ASHI) - American Society of Home Inspectors # 246753
* (ASHI) American Society of Home Inspection Endorsed Training
* Code Check California 2009 / 2010 Code Compliance Training
* NFPA 73 Residential Electrical Seminar for existing dwellings
* Graduate of ITA (Inspection Training Associates). ITA is the only California
Department of Education accredited inspection school.
* Inspection Training Associates - Commercial Inspection Course
* Pool Inspection Courses, Pool Construction and Code Compliance Experience.
* (ASHI) Advanced & Commercial Electrical Inspection Training

 Membership and Affiliation:

* (NAHREP) - National Association of Hispanic Real Estate Professionals
* (WCR) Women's Council of Realtors
* (CCRIM) - Contra Costa Realtors in Motion
* (CCAR) Contra Costa Association of Realtors
* ( DAR) Delta Association of Realtors
* ( WCCAR) West Contra Costa Association of Realtors
* Hispanic Chamber of Commerce of Contra Costa Hall of Fame 20099

Home Condo Pool FHA Compliant Inspections, 203K Streamline and Infrared Thermal Inspections - Walnut Creek, Concord, Danville, Albany, San Ramon, Blackhawk, Dublin, Pleasanton, Livermore, Antioch, Alamo, Alameda, Berkeley, Benicia, Oakley, Byron, Clayton, Brentwood, Pittsburg, Bay Point, Fairfield, Rodeo, , Vacaville, Discovery Bay, Carmel, Pacific Grove, Carmel by the Sea, Seaside, San Jose, Milpitas, Daly City, Pacifica, San Leandro, Union City, Pebble Beach, Marina, Monterey, El Sobrante, El Cerrito, Pinole, San Pablo, Hayward, , Suisun City, Dixon, Hercules, Lafayette, , Martinez, Isleton, Napa, Oakland, Orinda, American Canyon, Pleasant Hill, San Francisco, Walnut Grove, Rio Vista, Richmond, Vallejo, Yountville, Calistoga, Saint Helena, Tracy, Castro Valley, Mountain House, Emeryville, Kensington, Pacheco, Crockett, , Diablo,Green Valley,Moraga,Port Costa, San Lorenzo,Contra Costa, Marin,