Established in 1949, Diamond Sign Company strives to make your signage needs our top priority. From design work and manufacture to installations, we can create your banner, logo, sign or vehicle graphics without hassles. Depend on our superior service and exceptional products for quality and effective outcomes. Enjoy our experienced services in the Orange County, CA area.. Door Signs|Custom Signs|Photo-Imaged Signs|Electronic Message Boards|Door Signs|Billboards|Signboards|Signboards|Door Signs|Banners,Pennants,& Flags|Banners,Pennants,& Flags|Vehicle Signs|Door Signs|Banners,Pennants,& Flags|Lettering|Window Signs|Window Signs|Custom Signs|Custom Signs|Electronic Signs|Campaign Signs|Design Services|Planning|Graphic Design|Estimates|Design Services