--- title: ADT 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 California - #1 in Home Security ![ADT California](https://www.californiasecuritypro.com/hs-fs/file-17672384-jpg/images/california_flag.jpg?width=176&height=117&name=california_flag.jpg)If you are looking for the best [security company in California ](https://www.californiasecuritypro.com/security-companies-in-california/)you have found it. [California Security Pro](https://www.californiasecuritypro.com/) is a top [ADT California](https://www.californiasecuritypro.com/california-home-security-dealers/adt-ca/) Authorized Dealer and we have some of the highest quality scores and customers reviews in the security industry. We look forward to protecting you and your family.       ## ADT California - Top Rated Home Security Company  California Security Pro is honored to have high quality customer service scores, hundreds of 5 Star customer reviews for ADT in California and has been awarded a Prime Buyers Report Top 10 Home Security Company in California. **Check out:** - Our most recent [ADT California Customer Reviews](https://www.californiasecuritypro.com/adt-reviews/home-security-systems-reviews/) -  [Prime Buyer's Top 10 Security Company in California](http://www.primebuyersreport.org/ca/walnut-creek-home-security-and-alarm-companies.html)  - Better Business Bureau [BBB A+ rating](http://www.bbb.org/greater-san-francisco/business-reviews/security-systems-consultants/california-security-pro-in-san-ramon-ca-370764#bbblogo)  - We have earned hundreds of [5 Star Ratings on Yelp](http://www.yelp.com/biz/california-security-pro-san-ramon) from our satisfied customers throughout our California locations.  Our company culture is to give you the highest level of customer service possible. We do everything we can to treat each of our customers like family. It is very important to us that you have an enjoyable experience working with us. We take the extra step to give you a free home security review to help you custom design the right security solution for your home within your budget. We look forward to helping you protect your home and family.   [![SCHEDULE A FREE HOME SECURITY REVIEW](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/137046/db614724-60f3-40c9-86ec-fdfc4d036602.png)](https://hubspot-cta-redirect-na2-prod.s3.amazonaws.com/cta/redirect/137046/db614724-60f3-40c9-86ec-fdfc4d036602)   ## ADT California Home Security Installations  We have installed over 20,000 ADT monitored home security systems here in California. We are one of the largest [ADT Authorized Dealers 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 Southern and Northern California and serve the greater Los Angeles area, the entire Bay Area and the Sacramento region.  Out installation department is one of the finest in the industry. Our Installation Managers and Senior Technicians have an immense amount of security system, low voltage and home automation installation experience. We special in [ADT Pulse](https://www.californiasecuritypro.com/adt-pulse/) installations, home and business security systems and video surveilance. Before scheduling an installation, call 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.   ## California Cities We Install ADT Monitored Home Security Systems #### **Major Cities** - [ADT Anahiem CA](https://www.californiasecuritypro.com/adt-anaheim-ca/) - [ADT Bakersfield CA](https://www.californiasecuritypro.com/adt-bakersfield-ca/) - [ADT Long Beach CA](https://www.californiasecuritypro.com/adt-long-beach-ca/) - [ADT Los Angeles CA](https://www.californiasecuritypro.com/adt-los-angeles/) - [ADT Oakland CA](https://www.californiasecuritypro.com/adt-oakland-ca/) - [ADT Sacramento CA](https://www.californiasecuritypro.com/adt-sacramento-ca/) - [ADT San Francisco CA](https://www.californiasecuritypro.com/adt-san-francisco/) - [ADT San Jose CA](https://www.californiasecuritypro.com/adt-san-jose-ca/) - [ADT Santa Ana CA](https://www.californiasecuritypro.com/adt-santa-ana-ca/) - [ADT Stockton CA](https://www.californiasecuritypro.com/adt-stockton-ca/) #### **[Click here for a list of all the California cites we install ADT monitored home security systems](https://www.californiasecuritypro.com/california-home-security-dealers/adt-ca/)** ## 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)