ADT review
ADT is the default traditional choice for Southern California homeowners who want a known national brand, technician installation, and 24/7 professional monitoring.
Professional installation and brand recognition
Professional installation
24/7 professional
Pros & cons
Pros
- Largest US monitoring footprint with 6 redundant centers
- Professional installation handles wiring and placement
- Strong smart-home integrations via the ADT+ app
- Theft and fire protection guarantees on most plans
Cons
- Long-term contracts (often 36 months)
- Higher monthly monitoring cost than DIY systems
- Equipment is bundled — less customization than open ecosystems
- Cancellation fees can be steep
Pricing & equipment
Starts at: $45–$60/mo monitoring
Contract: 36 months typical
Equipment: Touchscreen panel, door/window sensors, motion sensors, ADT cameras, smart locks
For Southern California shoppers, also factor in city-level alarm permit costs, false-alarm fines, and whether the equipment is rental-friendly if you do not own the home.
Where ADT fits in Southern California
In Southern California, pay close attention to alarm permit rules, outdoor camera placement, cellular backup, wildfire/power outage resilience, and whether your home is a rental, condo, townhome, or detached single-family home. ADT should be compared against local alarm installers and national providers before buying. Official site: ADT.
Cross-reference our independent research partners — alarm system reviews, home security reviews, and security systems reviews — for additional perspective.
Alternatives to compare
- Vivint review — Best for premium smart-home automation.
- SimpliSafe review — Best DIY home security with no contract.
- AT&T Connected Life review — Best Google Home security bundle (AT&T Connected Life).
- Abode Home Security review — Best DIY home security with smart-home flexibility.
- Ring Alarm review — Best Ring video doorbell + alarm ecosystem.
- Xfinity Home review — Best Comcast / Xfinity home security bundle.
- Brinks Home review — Best alternative to ADT for pro monitoring.
- Frontpoint review — Best DIY equipment with full pro monitoring.
- Cove review — Best budget DIY monitored alarm.
Ready to lock in a Southern California alarm system?
Compare the best home security companies, alarm monitoring providers, and DIY security systems with editorial scoring, pros and cons, pricing, and city-specific notes.
Frequently asked questions
Is ADT available in Southern California?
ADT is available in many Southern California areas, including Los Angeles, San Diego, Orange County, Riverside, San Bernardino, Ventura, and Santa Barbara counties. Final service depends on your address, ZIP code, package, and installation requirements.
Is ADT better for DIY or professional installation?
ADT is primarily categorized as: Professional installation.
How much does ADT cost?
ADT typically starts at $45–$60/mo monitoring. Equipment cost varies by package. Always confirm current pricing on the official site before purchasing.
What contract does ADT require?
ADT contract terms: 36 months typical.
What should I compare against ADT?
Compare equipment cost, monthly monitoring cost, contract terms, camera quality, app reviews, smart-home compatibility (HomeKit, Google Home, Alexa), cellular backup, and local alarm permit rules.