ADT-Monitored Home Security Services is the longest-established security company on our review site. It was over 140 years ago when American District Telegraph pioneered in sending security alerts by Morse code. Today ADT serves both homes and businesses looking for top-notch security systems and alarm monitoring. Systems monitored by ADT use hardwired and wireless equipment to detect invasions and automate homes for energy-saving and convenience.

I am extremely disappointed with ADT billing department. I have had an account at my house for four years. I set one up for my dad's house last week. I told them several times this is not a replacement setup and that I need security at both homes. Come to find out they disconnected my service. They did not call me to see if they were correct in doing so, they just did it. One account is setup under my dad's name and the other under mine. I am just the person to call for emergencies and the one controlling the systems. ADT, how and why did you screw this up?

This particular Shield system comes with the SimpliSafe base station (which plugs into the wall), six entry sensors, two motion sensors, a keypad, and a key fob so you can easily arm the system when you leave. Like many other systems on this list, SimpliSafe doesn’t require any tools to install. Just stick the sensors to your windows and doors, pair them with the mobile app, and you’re ready to go. SimpliSafe sells additional sensors so you can expand your system as needed. It is compatible with Amazon Alexa. 
This company sucks! They insisted that I needed an ugrade to my monitoring to wireless. They sent out a rep that changed my system to wireless. Well the sensor in my bedroom kept signaling that there was break in. The police came out 3 times, where I was charged for 3 false alarms. I called ADT to complain, they said that I had to pay for the false alarms and show them proof of payment to be reimbursed. They sent out their tech, that fixed the problem and I mailed them proof of payment for the false alarms. We went around and aroud with them sayig theey had to investigate the problem! What?! After 6 months of the back and forth, approximately, a supervisor tells me that they do not give... Read More
We had our home broken into some years ago, but today, I once again feel robbed, preyed upon and vulnerable.. This time, it is the service we choose for peace of mind that have taken from us: ADT.Don’t sign with ADT!!You will read similar warnings on blogs, comments, feeds and other online reviews – if you haven’t already signed a contract – then you’re luckier than most, keep your money and find another way of keeping you and your possessions safe!It’s no surprise they score 1.9/10 on ‘Best Home Security Companies’ by 648 reviewers..Here is why:No Free Installation With Traditional Plan36-Month Contract Required Outrageous cancellation termsExcessively long call times Pushy sales tactics Regularly increases monthly fee for no reasonRequires written, signed-for letters to acknowledge any customer requests/complaints Many Negative User ReviewsPlethora of BBB ComplaintsIf you read this and ADT manage to convince you, when you do eventually become disaffected, write your own post and share with others.It is only by sharing the information and by buying services that are ethical, fair and transparent that we can shape the industry for the better and rid the market of companies like ADT.We deserve better.
ADT Security Services is the largest home security provider in the US. Compared with most other home security companies, ADT offers a wider range of services. They also have six monitoring centers nationwide that are open 24 hours a day, 365 days a year. Protect Your Home-ADT Authorized Premier Provider provides home security equipment packages that can connect to one ADT’s monitoring centers. This helps homeowners combine the monitoring expertise of ADT with the value offered by Protect Your Home.

Alex Colon is the managing editor of PCMag's consumer electronics team. He previously covered mobile technology for PCMag and Gigaom. Though he does the majority of his reading and writing on various digital displays, Alex still loves to sit down with a good, old-fashioned, paper and ink book in his free time. (Not that there's anything wrong wit... See Full Bio


I got a system installed for free when I signed a 5-year contract.  It was valued at about $1800.  The novelty wore off and I stopped setting it after a few months.  I display the sign in my front window and people can see the panel when they come into my house, which looks pretty cool.  At the very least, I figured the advertising would be enough of a deterent.  I live in a quiet area after all.
ADT doesn’t have the strongest customer service reputation among the companies we considered, racking up more than 3,000 complaints on its Better Business Bureau page. While we chalked most of this up to the fact that ADT has several million more customers than its competitors, our tester began his call with low expectations. He was pleasantly surprised, saying, “My needs drove the conversation. And once I finally had the quote, he explained the purpose behind each device I was receiving and what the installation might entail. He took extra time to help me weigh whether I needed home automation or not — and I’m almost positive it wasn’t scripted.”
If for any reason you’re unhappy, you’ll get a full, hassle-free refund* on installation and monitoring. *Subject to certain restrictions If during the six months following installation ADT is unable to resolve any installation/service-related concern, you may receive a refund of the installation price and all monitoring fees you paid within the first six months. Certain restrictions apply.
ADT’s Control Package offers its basic coverage and more. It also starts with a $125 upfront equipment fee, but with a monthly monitoring fee of $36.99, it adds home automation, giving you more control over the features and systems within your home regardless of whether you’re on site. In addition to remote web and mobile access, you can receive email and text notifications for various security triggers.
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