Their equipment and service is garbage Their equipment is garbage, customer service not much better. You can’t understand what 1/2 of them are staying and whenever there is an equipment issue, they just pass you off to another associate who also can’t help and so you get passed to someone else and on and on! It’s a joke!

ADT specializes in locking you into a plan and forgetting about you. Ever hearse of the term "lock in." it's what keeps companies like ADT in business. They're banking on the fact that when you spend so much to have one of these alarm systems installed, it's very difficult and expensive for you to switch to another provider, which means you'll generally remain a customer, no matter how bad the service is. And as others have noted, it is awful. They recently sent a freelance contractor out to replace the wireless system panel in the basement from 3G to a more up-to-date cell communication method. He botched it and a few days later, all the alarms started going off at once. I called ADT and they said they saw nothing wrong on their end and that they could send someone out in a few weeks to take a look. They could literally hear the alarms blaring in the background (the decibel level was horrific, and I had to go around and rip the wires from the units to silence them). Then I kept getting calls from an ADT system over and over saying that there appeared to be something wrong and to call them. A few weeks later a technician came and acknowledged that the guy had screwed up the installation. They redid it. Then recently I had a problem with one of the smoke detectors and a technician came and said I should order replacement batteries from ADT because I was on the free battery replacement plan. This had been the case for years (25 to be exact). But when I called ADT they said the plan did not cover batteries (which cost $18 apiece -- not exactly cheap). Previously, I had spoken to a customer service agent to set up the appointment, and they too said I was covered under the battery plan. So now two representatives from ADT have said I'm covered and one said I was not. How bad is ADT's computer system that you get such different answers? Also, when I do replace batteries myself, the alarm goes off but I don't hear anything from ADT. They used to call to make sure there wasn't a problem. Now, nothing. This company is horrible.

Worst company ever Worst company ever! Bought the most expensive system 11 months ago. Nothing but problems. Multiple service calls and techs coming out (that I get charged for!). We finally turned the system off and it STILL alarms in the middle of the night. Had a house sitter here while on vacation and the system drove her crazy. ADT refuses to give me my money back and pick up their system. Going to refer this to my attorney.

worst company I have ever done business… worst company I have ever done business with. Through false alarms, alarms going off AFTER events to us attempting to get our CO and sell our house. The tech said it would be free of charge, they came here and tried to bill me. I told them I just need a review that my equipment is in working order to sell my house, after all I was a customer for 25 years. The tech called his manager who refused the service. Stay far away, you are better off keeping your doors wide open.

Made monthly payments on time and I… Made monthly payments on time and I refused to sign up for auto pay. I told ADT that I wanted to pay my account monthly and that I was not going to give them access to checking account. ADT started making harassing phone calls and so I cancelled my contract with them and told them to come and get their equipment. ADT then charged me $3,000.00 for cancelling my contract. Outrages. I will never do business again with ADT.