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ADT Home Security: Cost, Plans & Is It Worth It? (2026)
What is ADT?
ADT (short for American District Telegraph) has provided security monitoring for over 145 years. ADT home security combines door and window sensors, motion detectors, cameras, and a smart-home hub with 24/7 professional monitoring — a monitoring center responds to alarms and can dispatch police, fire, or medical help. You can choose a professionally installed system or the DIY ADT Self Setup line.
ADT plans and pricing (2026)
Monitoring pricing varies by the equipment and features you choose; confirm current pricing before you sign up.
| Plan | Monitoring | Typical price* |
|---|---|---|
| ADT Self Setup (DIY) | Self or optional pro monitoring | from ~$24.99/mo |
| Secure (pro-install) | 24/7 pro monitoring | ~$45/mo |
| Smart / Video | Monitoring + cameras & automation | up to ~$57/mo |
*Monthly monitoring; equipment is separate. See current pricing on the ADT site. Equipment ranges from about $349 to $1,500+ depending on the package. Professionally installed systems are typically financed over a multi-year term.
ADT monitoring and installation
ADT’s 24/7 professional monitoring is its core strength, with a large network of monitoring centers and fast alarm response. Cellular backup keeps the system working if the internet or power goes out.
ADT contract and cancellation
Professionally installed ADT systems generally require a multi-year monitoring contract (often 36 months, via financing). The DIY ADT Self Setup line is month-to-month with no contract. Review the terms before you sign.
ADT pros and cons
| Pros | Cons |
|---|---|
| 145+ years, trusted brand and fast response | Pro-install plans require a multi-year contract |
| DIY (Self Setup) option with no contract | Equipment can be pricey for full systems |
| Cellular backup; wide monitoring network | Monthly cost rises with cameras and automation |
Is ADT worth it?
For homeowners who want a trusted, professionally monitored system with fast response, ADT home security is often worth it — few brands match its track record and monitoring network. If you’d rather avoid a contract, the DIY ADT Self Setup line delivers the same monitoring month-to-month.
How ADT compares to Vivint and Brinks
ADT’s edge is its 145-year track record and the largest professional monitoring network of the three, with fast alarm response and both a DIY (Self Setup) and a professional-install path. Vivint leans further into smart-home automation but locks you into a longer contract, while Brinks Home sits in between with a 30-day money-back guarantee. If contract flexibility matters most, ADT’s Self Setup line stands out among the three.
ADT equipment and smart-home features
ADT systems use door and window sensors, motion detectors, HD indoor and outdoor cameras, video doorbells, smart locks and a touchscreen panel, controlled through the ADT+ app, with Google Nest integration on some plans. The DIY ADT Self Setup line uses similar components you install yourself, keeping the same 24/7 professional monitoring option without a technician visit.
Is ADT home security right for your home?
ADT home security is a strong fit if you want a trusted, professionally monitored system with fast response and the option to avoid a contract through Self Setup. Renters and budget-focused buyers may prefer a DIY, month-to-month setup, and large homes wanting deep automation may look at Vivint. For most homeowners who value reliability and a proven brand, ADT is an easy shortlist pick.
ADT FAQ
How much is ADT a month?
ADT professional monitoring starts around $24.99/mo and rises to about $57/mo for plans with cameras and smart-home automation. Equipment is separate, from about $349.
What does ADT stand for?
ADT stands for American District Telegraph, the company’s original name dating to the 1870s.
Is ADT worth it?
For fast, reliable professional monitoring from a trusted brand, many homeowners find ADT worth it. If you want to avoid a contract, its DIY Self Setup line offers the same monitoring month-to-month.
Does ADT require a contract?
Professionally installed ADT systems typically require a multi-year monitoring contract; the DIY ADT Self Setup line is month-to-month with no contract.
How do I cancel ADT?
Contract plans may involve an early termination fee if canceled before the term ends. Review your agreement, and compare other monitored systems before switching.
Keep going
Who owns ADT?
ADT is a publicly traded company (NYSE: ADT) based in Boca Raton, Florida. Apollo Global Management took ADT private in 2016, and the company returned to public markets in 2018. Its largest strategic shareholder today is State Farm (about a 15% stake from a $1.2 billion investment in 2022); Google also holds a minority stake from a 2020 partnership.
How do I contact ADT customer service?
Reach ADT customer service and billing at 1-800-238-2727, seven days a week. For alarm or monitoring emergencies, ADT’s monitoring center is staffed 24/7 at 1-855-894-1737. Existing customers can also use live chat, email, or the ADT+ mobile app.
