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Local Growth through Collective Help 

At Weller/O’Brien Insurance Services, we give back to the community in two important ways.  First, we provide residents of the communities we serve with quality insurance products and first-rate services.  This helps our clients stay financially secure and provides them with a go-to resource for insurance.  Second, we give our time, energy, and effort to organizations in our service areas.  This helps individuals, families, and other businesses prosper.


Owner Bill Weller uses his passions for cycling and caring for others to provide for those less fortunate through ‘Pass the Word Ministry.’ 


Celia, who manages agency operations, believes insurance is a personal, financial protection tool and takes her job seriously.  This passion extends to her off-time in  the equine community, at Pleasant Valley Horse Club in Aptos,   providing care to rescued Horses and encouragement to children and adults who visit and take lessons with the horses.   

Our Locations

Weller/O'Brien Insurance Services

16275 Monterey St. Suite L
Morgan Hill, CA 95037
Main office: 408-612-8195
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Weller/O'Brien Insurance Services - Half Moon Bay

720 Kelly Avenue
Half Moon Bay, CA 94019
Main office: 650-492-6842
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Our Providers


Bill has been my agent for over 20 years, insuring my house, my car and my business. I highly recommend his agency especially for the personal attention provided by Celia with my ongoing needs. I don't worry about my insurance thanks to Celia and Bill.
Gayla P.
It's a pleasure to do business with Celia and Bill. They are both knowledgeable and friendly. Excellent customer service! Whenever I've called with a question, they've responded in a very timely manner. My husband and I have been customers for over ten years and will continue for many more.
Phyllis S. San Jose, CA
We have been working with Bill and Celia for over 20 years. We have used their agency for our home, farm and auto. I find them to be prompt, honest and knowledgeable. We depend on them! Celia takes a very personal interest in helping us which really is sincere, apparent and unusual in this day and age. I would very highly recommend Bill and Celia to all my friends and colleagues!
Doug W. Milpitas, CA
Bill and Celia have been providing our family with tremendously great service for our farm, homes and autos for many years. It is because of their knowledge, that we can go about our business confident and worry free knowing we have good coverage. I highly recommend Bill and Celia for the friendliness and informed services the provide.
Doug P. J.E. Perry Farms