insurance by Castle

At Insurance by Castle we specialize in landlord, rental property, and apartment insurance – but can write for nearly any personal or commercial policy. Our “5 Doors or More Program” is specially designed for landlords who own 5 or more rental properties. This is an exclusive program that no other insurance agency offers.
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.