Our goal at Castle Sign & Post Installation is to build life long relationships, one client at a time.

Castle Sign & Post Installation was founded in 1997. We are going to revolutionize the sign installation industry by practicing the principle of extreme integrity. Our Management team has a combined 34 years of Real Estate Sales & Operations experience.

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Service Area Map

Castle Sign & Post Installation installs real estate sign posts in the Los Angeles & Orange County areas which includes the following California cities: Bellflower, Carson, Cerritos, Compton, Downey, Fullerton, Harbor City, Hawaiian Gardens, Hawthorne, Huntington Beach, Inglewood, Irvine, Lake Forest, Lakewood, Long Beach, Los Alamitos, Los Angeles, Lynwood, North Hollywood, Norwalk, Ontario, Orange, Paramount, San Clemente, San Pedro, Santa Monica, Signal Hill, South Gate, Whittier & Wilmington.

Click here to download a PDF of our Service Area Map.


Castle Sign & Post Installation is the only 5 Star rated company of it's type in the greater Los Angeles & Orange County area based on a survey of Customers using our service!

Sandra J. - Long Beach, CA.

Nice, friendly, professional service. The sign looks very professional. What I really liked was the follow up phone call after the installation. Well done!

Gwen W. - Bellflower, CA.

These guys definitely know what they are doing! Fast, courteous and can get the job done! I Would definitely recommend!

Joe S. - Long Beach, CA.

I could not ask for more. Very fast installation. Thank you!

Glenn D. - Lakewood, CA.

It has been a pleasure working with you and I think you have the best customer service of any firm I have ever worked with, hands down!

Christina P. - South Gate, CA.

The quality of the work and the service was excellent. The price was fair. They're prompt and they deliver. I'm satisfied.

James B. - Downey, CA.

Thanks so much for the information about future options. You have been most helpful through this whole process.