CALL US:
800.644.6443
Buy My Book

About Our Agency

Our expertise and independence assure the best choices for you.

Three generations of the Castle family have built Insurance by Castle from a one person business serving local community clients to a leading insurance provider in California. Today, Insurance by Castle provides a wide range of insurance services to a variety of clients, including both businesses and individuals. Our growth and success have been built on a track record of exceptional expertise, ethical professionalism, and unmatched client service.

One of the greatest benefits we bring to you is our independence. Insurance by Castle gives every client the widest possible range of insurance providers, coverages, and pricing. This means we can, literally, find the very best choice for you — our valued client. Because we are independent, we are not tied to any one insurance company. — we work for you! This means we are free to seek out the best coverage at the best price to meet your particular, specific needs. And we do.

We represent a carefully selected group of financially sound, reputable insurance companies, and are free to work with the company that offers the best coverage for you at a very competitive price.

Our Location

Insurance By Castle

1227 Arguello Street
Redwood City, CA 94063
Main office: 650-681-0461
Toll free: 800-644-6443

Our Providers

"You did exactly what you said you would do exactly when you said you would do it. You were knowledgeable and always available to answer questions. A nice benefit was saving about 15% on my insurance policy!"
-Tom Garrett
Tom Garrett
"Best insurance company in every respect.......knowledge, service, courtesy, accountability. Always aim to please."
-Ann Miller
Ann Miller
"Always professional and courteous. Readily available for answering questions or giving guidance to refer to another place that can help if for some rare reason they aren’t able to help. They’re very personable."
-Kathleen Hahn
Kathleen Hahn
"Always great-Love you guys Can't say enough great things about Ingrid and Kelly."
-Jeremy Sowers
Jeremy Sowers
"You took your time in explaining coverage and cost. Even though I repeated some of my questions you were patient and courteous. Thanx."
-Daniel Gutierrez
Daniel Gutierrez
"You respond quickly to my questions on insurance and cost."
-Shawn Fitzpatrick
Shawn Fitzpatrick