Call Us Today:
Landlords Insurance
Home & Auto Insurance
Coverage for Your Business
Life Insurance
Health Insurance
Renters Insurance

Our Location

Insurance By Castle

1227 Arguello Street
Redwood City, CA 94063
Main office: 650-521-9040
Toll free: 800-644-6443
Fax: 650-364-3667

Office Hours:

Mon: 9:00 AM - 4:00 PM
Tues: 9:00 AM - 4:00 PM
Wed: 9:00 AM - 4:00 PM
Thurs: 9:00 AM - 4:00 PM
Fri: 9:00 AM - 4:00 PM
Sat: Closed
Sun: Closed

Our Providers

Landlords, Rental Property, and Apartment Insurance serving all of California

Insurance by Castle
located in Redwood City, CA

"Come for the price. Stay for the service."


For over 30 years, Insurance by Castle has been providing comprehensive landlords, rental property, and apartment insurance in Redwood City, San Mateo, and surrounding areas throughout California. Our customers come to us for the price, but stay for the exceptional customer service we provide to each person that walks through our door.


Since our founder, Jack Castle, started this agency, we have been a one stop shop for all of your insurance solutions. We have established partnerships with some of the nation’s top-rated companies – giving us the ability to work with different providers, finding the best rate and the best policy that truly fits your needs.

Insurance offerings to fit you perfectly

We specialize in landlord, rental property, and apartment insurance – but can write for nearly any personal or commercial policy. Our “7 Doors or More Program” is specially designed for landlords who own 7 or more rental properties. This is an exclusive program that no other insurance agency offers.


We also offer some niche insurance policies like our fire protection coverage that includes fire extinguisher contractor, sprinkler system contactors, and restaurant hood service contractors.

Local agents working for you

Our agency’s founder was very civic minded and active in many community organizations. We strive to have that same mindset and continue to support through the Second Harvest Food Bank, SPCA, Breast Cancer Foundation.


Call or contact us today to speak with a local agent. To get started on a policy, request a quote



Accommodating, professional, helpful, and quick. Very comfortable experience and I was impressed by their capabilities. Highly recommended.
- Brad M.
I feel lucky to have found an agent willing to provide this level of service. No need to look anywhere else!
- Michelle D.
Over the years we’ve never once had to worry about our coverage. My husband and I are long-time customers and proud to be.
- Carol S.
Surprisingly flexible and in-touch with my needs as a small business owner. Can’t ask for more.
- Spencer F.
They have strong ties with the community, and it shows. It’s nice to do business with people that really show they care about you and your family.
- Susan T.