United Guard Services, Inc. has great rates top-notch security guard services for businesses throughout San Diego County with best-in-class service. United Guard Services, Inc. offers armed and unarmed security guards, drive-by mobile security patrols and special event security staffing. Put our top-notch security guards to work to protect your property and keep your employees and customers safe. We handle clients throughout San Diego County and have some of the most competitive rates in the city. Call or visit our website for a customized security quote.