--- title: ADT Home Security California description: Top Rated Home Alarm Company in California that installs ADT Monitored Security Systems. More info call 1-800-310-9490 --- ** **[Northern CA 800-310-9490 ](tel:1-800-310-9490)****[Southern CA 800-960-4590](tel:1-800-960-4590)**   *Search* ** [![securitypro-group-logo](https://www.californiasecuritypro.com/hs-fs/hubfs/securitypro-group-logo.jpg?width=295&name=securitypro-group-logo.jpg "securitypro-group-logo")](https://www.californiasecuritypro.com) ![adt-dealer-white](https://www.californiasecuritypro.com/hs-fs/hubfs/images/adt-dealer-white.jpg?width=295&name=adt-dealer-white.jpg "adt-dealer-white") ![](https://www.californiasecuritypro.com/hs-fs/file-17687200-png/images/shield.png) FREE ADT Home Security Review in California [![Schedule Now](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/137046/82785ca4-74c4-4ea7-bcc8-aeab82f123c8.png)](https://hubspot-cta-redirect-na2-prod.s3.amazonaws.com/cta/redirect/137046/82785ca4-74c4-4ea7-bcc8-aeab82f123c8) [![Get Your FREE* Home Security System valued at $850. Next Day Install Available.... Just $99*.](https://www.californiasecuritypro.com/hs-fs/file-17670047-jpg/images/banner1.jpg)](https://www.californiasecuritypro.com/adt-offers/) [![Remote Security... check in and control your home security system from almost Anywhere!!!](https://www.californiasecuritypro.com/hs-fs/file-17670145-jpg/images/banner2.jpg)](https://www.californiasecuritypro.com/adt-pulse/) [![*NO Home Phone Service... NO Problem! Install a cellular alarm with ADT CellGuard Monitoring Service.](https://www.californiasecuritypro.com/hs-fs/file-17670212-jpg/images/banner3.jpg)](https://www.californiasecuritypro.com/adt-cellguard-cellular-alarm-system/DSC-Impassa-9057/) [![Activate your existing system and receive up to $850 in FREE* Upgrades.](https://www.californiasecuritypro.com/hs-fs/file-17670297-jpg/images/banner4.jpg)](https://www.californiasecuritypro.com/reactive-existing-security-system/) [![Choose the ADT Monitoring Package that is best for you. Options starting at just $35.99/per month*.](https://www.californiasecuritypro.com/hs-fs/file-17670374-jpg/images/banner5.jpg)](https://www.californiasecuritypro.com/ADT-California-monitoring-service/pricing-guide/) Call 1-800-310-9490 for ADT Special Offers # ADT Home Security - #1 in California ADT is certainly the leading home security monitoring company in the United States and here in California. If you are looking to get an ADT monitored security system install in your California home or business, [schedule a free home security review](https://www.californiasecuritypro.com/your-free-home-security-review/) with a Security Consultant from [California Security Pro](https://www.californiasecuritypro.com/california-home-security-dealers/adt-ca/).   ## ADT California Home Security Systems... Security you can TRUST Ever wonder if your home and possesions are safe? Wonder no more, with ADT monitored home security systems you no longer have to worry about leaving your home and your possesions unattended. With ADT security systems installed in your California home you can have peice of mind knowing that everything will be the way you left it when you return.  You never know when an in home emergency will happen, make the right choice and trust ADT to protect you and your loved ones when you need it most. Families having been trusting ADT for over 135 years. It's time to protect your home and family.   ## Top Rated ADT Home Security Company in California California Security Pro is honored to have been awarded a Prime Buyers Report [10 Security Company in California](http://www.primebuyersreport.org/ca/walnut-creek-home-security-and-alarm-companies.html)  and currently the only company to be given the [Top 10 Seal](http://www.primebuyersreport.org/research-steps.html).  We also have an [A+ BBB rating](http://www.bbb.org/greater-san-francisco/business-reviews/security-systems-consultants/california-security-pro-in-san-ramon-ca-370764#bbblogo) and have earned [5 Star Ratings on Yelp](http://www.yelp.com/biz/california-security-pro-san-ramon) from our satisfied customers. We also won [Angie's List 2013 Super Service Award](https://www.californiasecuritypro.com/adt-reviews/customer-reviews-angies-list/) for being a top 5% rated company by Angie's List members. It would be our priviledge to install a security system in your California home and we would take incredible care to give you top level service.   ## ADT Monitored Security Systems Installed throughout California We have installed over 20,000 ADT monitored home security systems here in California. We are the largest [ADT Authorized Dealer in California](https://www.californiasecuritypro.com/california-home-security-dealers/adt-ca/) that installs security systems exclusively in the State of California. We have offices in both Soutern and Northern California and serve the greater Los Angeles area, the Bay Area and the Sacramento region.  As a California homeowner, you can be confident in having California Security Pro install your security system. We have local Security Consultants and Technicians working out of our offices throughout the State. We feel that having a local company who understands your community is an important part of your plan to getting the right kind of security system to meet your needs. Schedule to have one of our Security Consultants come out to give you a [free home security review](https://www.californiasecuritypro.com/your-free-home-security-review/). Call today 1-800-810-9490. #### **Below are the California Counties We Serve** ##### **[Alameda County - ADT California](https://www.californiasecuritypro.com/adt-alameda-county/home-security-systems/) ** ##### **[Amador County-ADT California ](https://www.californiasecuritypro.com/adt-amador-county/adt-home-security-amador-county/)** **** ##### **** ##### **[Contra Costa County - ADT California](https://www.californiasecuritypro.com/adt-contra-costa-county/home-security-systems/)** ##### **[Kern County-ADT California](https://www.californiasecuritypro.com/adt-kern-county/)** ##### **[Los Angeles County-ADT California](https://www.californiasecuritypro.com/adt-Los-Angeles-county/home-security-systems/)** ##### **[Marin County - ADT California](https://www.californiasecuritypro.com/ADT-Marin-County/home-security-systems/)** ##### **[Napa County - ADT California](https://www.californiasecuritypro.com/adt-napa-county/home-security-systems/)** ##### **[Orange County-ADT California](https://www.californiasecuritypro.com/adt-orange-county/)** ##### **[Sacramento County - ADT California](https://www.californiasecuritypro.com/adt-sacramento-county/home-security-systems/)** ##### **[San Bernardino County-ADT California](https://www.californiasecuritypro.com/adt-san-bernardino-county/)** ##### **[San Francisco County - ADT California](https://www.californiasecuritypro.com/adt-san-francisco-county/home-security-systems/)** ##### [**San Joaquin County****-ADT California**](https://www.californiasecuritypro.com/adt-san-joaquin-county/home-security-systems-0/) ##### ****[San Mateo County - ADT California](https://www.californiasecuritypro.com/adt-san-mateo-county/home-security-systems/)** ** ##### **[Santa Clara County - ADT California](https://www.californiasecuritypro.com/adt-santa-clara-county/home-security-systems/)** ##### **[Solano County - ADT California](https://www.californiasecuritypro.com/adt-solano-county/home-security-systems/)** ##### **[Sonoma County - ADT California](https://www.californiasecuritypro.com/adt-sonoma-county/home-security-companies/)** ##### **[Ventura County-ADT California](https://www.californiasecuritypro.com/adt-ventura-county/)** ##### **[Yolo County - ADT California](https://www.californiasecuritypro.com/adt-yolo-county/home-security-companies/)**     ## Here are the California Counties we serve:  | [Alameda County](https://www.californiasecuritypro.com/adt-alameda-county/home-security-systems/) | [Amador County](https://www.californiasecuritypro.com/adt-amador-county/adt-home-security-amador-county/) | [Colusa County](https://www.californiasecuritypro.com/adt-colusa-county/adt-home-security-colusa-county-copy/) | [Contra Costa County](https://www.californiasecuritypro.com/adt-contra-costa-county/home-security-systems/)  | [El Dorado County](https://www.californiasecuritypro.com/adt-el-dorado-county/adt-home-security-el-dorado-county/) | [Kern County](https://www.californiasecuritypro.com/adt-kern-county/) | | --- | --- | --- | --- | --- | --- | | [Los Angeles County](https://www.californiasecuritypro.com/adt-Los-Angeles-county/home-security-systems/) | [Marin County](https://www.californiasecuritypro.com/ADT-Marin-County/home-security-systems/) | [Monterey County](https://www.californiasecuritypro.com/adt-monterey-county/adt-home-security-monterey-county/) | [Napa County](https://www.californiasecuritypro.com/adt-napa-county/home-security-systems/) | [Nevada County](https://www.californiasecuritypro.com/adt-home-security/california/adt-home-security-nevada-county/) | [Orange County](https://www.californiasecuritypro.com/adt-orange-county/) | | [Placer County](https://www.californiasecuritypro.com/adt-home-security-placer-county/) | [Riverside County](https://www.californiasecuritypro.com/adt-home-security-riverside-county) | [Sacramento County](https://www.californiasecuritypro.com/adt-sacramento-county/home-security-systems/) | [San Bernadino County](https://www.californiasecuritypro.com/adt-san-bernardino-county/) | [San Diego County](https://www.californiasecuritypro.com/adt-san-diego-county/home-security-systems) | [San Francisco County](https://www.californiasecuritypro.com/adt-san-francisco-county/home-security-systems/) | | [San Fernando Valley](https://www.californiasecuritypro.com/home-security-systems-san-fernando-valley-los-angeles-county-california) | [San Joaquin County](https://www.californiasecuritypro.com/adt-san-joaquin-county/home-security-systems-0/) | [San Mateo](https://www.californiasecuritypro.com/adt-san-mateo-county/home-security-systems) | [Santa Clara County](https://www.californiasecuritypro.com/adt-santa-clara-county/home-security-systems/) | [Santa Cruz County](https://www.californiasecuritypro.com/adt-santa-cruz-county/adt-home-security-santa-cruz-county/) | [Solano County](https://www.californiasecuritypro.com/adt-solano-county/home-security-systems/) | | [Sonoma County](https://www.californiasecuritypro.com/adt-sonoma-county/home-security-companies/) | [Stanislaus County](https://www.californiasecuritypro.com/adt-stanislaus-county/adt-home-security-stanislaus-county/) | [Sutter County](https://www.californiasecuritypro.com/adt-sutter-county/adt-home-security-sutter-county/) | [Ventura County](https://www.californiasecuritypro.com/adt-ventura-county/) | [Yolo County](https://www.californiasecuritypro.com/adt-yolo-county/home-security-companies/) | [Yuba County](https://www.californiasecuritypro.com/adt-yuba-county/adt-home-security-yuba-county/) |   ![verisign](https://www.californiasecuritypro.com/hs-fs/file-17690223-jpg/images/verisign.jpg?width=93&name=verisign.jpg) Call Now [1-800-310-9490 ](tel:1-800-310-9490)2551 San Ramon Valley Blvd, Suite 217 San Ramon, CA 94583 [![bbb-follow-icon](https://www.californiasecuritypro.com/hs-fs/file-2489665837-png/images/new/icons/bbb-follow.png)](http://www.bbb.org/greater-san-francisco/business-reviews/security-systems-consultants/california-security-pro-in-san-ramon-ca-370764#bbblogo) [![yelp-follow-icon](https://www.californiasecuritypro.com/hs-fs/hub/137046/file-2481222748-png/images/new/icons/yelp-follow-icon.png)](http://www.yelp.com/biz/california-security-pro-adt-authorized-dealer-san-ramon-2)