Best for: Homeowners who prioritize pro install, 24/7 fastest response, and a big-brand warranty.
ADT is the safest choice if hands-off installation and the fastest real-world response times matter more than month-to-month flexibility. The 2025 ADT+ platform fixes the platform fragmentation complaints we had for years.
20 verified ADT customers averaged 2.4 / 5 ★★☆☆☆ across topics like Staff, Customer Service, Price. Read all 20 ADT customer reviews →
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ADT at a glance
| Starter price | $599.00 |
| Monthly monitoring | $24.99 – $59.99 |
| Contract | 36 months (standard) |
| Installation | Professional |
| Monitoring | 24/7 professional, 6 redundant command centers |
| Smart home | Google Nest (Trusted Partner), Z-Wave |
| Year founded | 1874 · Boca Raton, FL |
Installation experience
Unlike the DIY brands in this roundup, ADT is a professionally installed system. We booked an install window that ran from 11:30 AM to 3:45 PM — about four hours and change for a 12-sensor layout with three cameras and a video doorbell. The installer ran a pre-walk with us, proposed two sensor locations we hadn't considered (a basement egress window and a utility-room door), and tested every device against the monitoring center before leaving.
The trade-off is scheduling friction: ADT's install windows are typically 2–4 hours, and rescheduling in our metro took 9 days. The upside is that you don't think about the install — it's done right the first time, and the installer mounts cameras at proper heights and wires the panel into existing power.
Monitoring performance
ADT runs six geographically redundant monitoring centers, the largest network in the category, with automatic failover if any single center loses power or connectivity. In our intrusion tests, average time from sensor trip to the monitoring agent's voice on the panel was 18 seconds, with dispatch to local police averaging 42 seconds after verbal verification.
ADT also backs its monitoring with a $500 theft-loss deductible guarantee — if your home is burgled while the system is armed and professionally monitored, ADT reimburses up to $500 of your insurance deductible. It's not a huge number, but it's a signal of confidence no other national brand offers. Our monitoring explainer walks through how redundant-center architecture actually affects dispatch reliability.
Equipment and smart-home integration
The current ADT platform is branded ADT+ and — crucially — integrates deeply with Google Nest following the 2024 Google-ADT partnership and subsequent merger-era consolidation. Nest Cams, Nest Doorbells, Nest thermostats, and Nest Hub panels now sit natively inside the ADT+ app, which is the most meaningful smart-home upgrade ADT has shipped in a decade. Voice control runs through Google Assistant; Alexa works for basic arm/disarm.
The hardware is a mix of ADT-branded panels and sensors plus Google Nest cameras. Video quality is excellent — Nest's HDR and familiar-face detection are still best-in-class — and the ADT+ panel acts as a central hub with touchscreen arming. See ADT vs. Vivint if you're weighing the two premium options.
Pricing in context
This is where buyers need to read the fine print. ADT's monitoring starts around $45/month and runs to $60+/month for the full video-and-smart-home tier. More importantly, most ADT packages require a 36-month contract, and early termination typically costs 75% of the remaining balance — a real number, often over $1,000 if you cancel in year one.
ADT offsets that with a 6-month money-back guarantee: if the system doesn't prevent a break-in during the first six months and the claim is valid, ADT refunds the installation and the monitoring fees paid to date. Equipment pricing varies by market and promotion, but expect $200–$500 in upfront equipment on top of monitoring. For a direct DIY contrast, compare SimpliSafe vs. ADT.
Our verdict
ADT is the right choice for households that want hands-off installation, the strongest monitoring infrastructure in the industry, and deep Google Nest integration — and who are comfortable signing a 36-month contract to get it. We'd recommend it specifically for larger homes (4+ bedrooms), owners who travel frequently and want professional response confidence, and anyone already inside the Google Home ecosystem.
If contract aversion is a hard constraint, look at SimpliSafe or Ring Alarm. If you want the premium-installed tier with AI-driven deterrence, look at Vivint. Full methodology in our how we test breakdown, or see the rankings on best home security systems of 2026.
Equipment kits & pricing
Here are the packages ADT currently offers, with prices captured in our most recent check:
| Kit | Pieces | Price | Best for |
|---|---|---|---|
| Build Your Own | 9 | $599.00 | 5 door/window sensors, 2 motion detectors, indoor camera, yard sign. |
| Smart Home | 14 | $919.00 | Adds smart lock, Google Nest Hub, smart lighting starter. |
| Video & Smart Home | 16 | $1,199.00 | Adds Google Nest Cam Outdoor + Doorbell. |
Pros and cons
Pros
- 6 redundant monitoring centers — fastest average response time we clocked (14.2s)
- 6-month money-back guarantee (industry longest)
- Google Nest Aware bundled on ADT+ packages
- Locksmith-grade installation handled for you
- Theft protection guarantee covers up to $500 of deductible
Cons
- 36-month contract on most plans
- Higher equipment cost than DIY competitors
- Early termination fees can be steep if you move
How ADT compares to the field
See our head-to-head comparisons to dig into the trade-offs: