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If your alarm is going off now or you have been contacted regarding an alarm event, please call 800.588.2159.
Customers outside of the US and Canada may contact ADT toll-free at 855. 238.4678.
Beyond providing you with 24/7 protection, we aim to provide you with 24/7 support as well whether it be through ADT.com, phone, or email. Browse our available resources and if you’re unable to find what you’re looking for, please don’t hesitate to contact us today.
Securely access your account, contact customer service, pay your bill and monitor your home security from nearly any internet-enabled device.
Manuals & Guides
Get additional customer support by accessing and downloading copies of your alarm system owner’s manual.
Download ADT mobile apps for iOS and Android devices to access your ADT Pulse system on the go.
Find answers to the most frequently asked customer support questions from our customer support professionals.
When you want to do everything you can to safeguard your loved ones, your home and your treasured possessions, you owe it to yourself and your family to talk to us about our continuous 24/7 protection.
The Most Experience
The largest security provider, with Customer Monitoring Centers located nationwide.
Our Customer Monitoring Centers are backed by powerful equipment using secure communications links.
The Best People
We staff the most experienced, caring and well-trained team of security professionals.
ADT is not only committed to protecting homes, but businesses as well. We offer a range of business security systems, and also more comprehensive control and safety features through business automation. These automation solutions include business alarm monitoring as part of outside theft prevention and employee theft prevention. But even beyond what our standard business alarm systems provide, they give you more control over your system, lights, thermostat and equipment. Contact ADT to learn more about our security. If we already protect your business, you can download our ADT manuals for more detail on your current system or any upgrades you are considering.
Our security systems for business aren’t just powerful, they’re designed with real businesses in mind. With so much on the line, you can trust that our on-call experts never take business safety lightly and understand that each industry has its own set of requirements and risks. That’s why we specialize in tailoring security to different business categories. We have retail business security, restaurant security systems, mechanical business automation, pharmacy security system options and office security. If you are interested in learning more, please visit our Security Services FAQs page. You can also refer to our business security blogs for more information and materials about how to reduce business false alarms while protecting your business.
As a business owner, you have a lot on your plate. Protect your home as smartly as you would your business with ADT home security. All of our wireless home security systems provide the basics: burglary prevention, carbon monoxide detectors, fire protection services and more.
Our range of home automation systems, ADT Pulse®, can be extended to include remote access, home energy management tools and home video surveillance, to give you more smart ways of keeping your home safe, comfortable and running energy-efficiently.
Our home security systems are best known for monitoring against burglary and fire, but we also offer CO monitoring and flood detection, which can help with storm preparedness thanks to a water detection sensor.
Beyond our basic security, you should also look into our ADT Pulse® products. These include controls for lights, locks, live video, as well as remote temperature control, all accessible from our app.
ADT home security is the most established and trusted in the industry. For over 140 years, we’ve made protecting and connecting the centerpiece of what we do.
We consider this commitment an ADT responsibility that goes into all of our home security systems, but also goes beyond that to placing a high value on ADT sustainability as well.
Even a brief look at our ADT history tells you a great deal about ADT, and further demonstrates our experience, expertise and values. These qualities are pervasive in our company. Our ADT directors and ADT corporate leadership are committed to upholding the ADT code of conduct and ADT ethics in everything that we do.
ADT is the most trusted security company in the industry. Keeping you safe is our business. But don’t take our word for it; watch the ADT Lifesaver Testimonial Videos to hear real stories from real people who’ve had their lives and homes saved by ADT. Additionally, check out our ADT Pulse® app downloads to see exactly what technology we offer in terms of home safety. Our equipment is easy to use, but should any questions arise, you can download our ADT security manuals, check the ADT security FAQs page, or contact ADT directly. We keep your home secure 24/7 and aim to provide you with round-the-clock support as well through ADT customer service.