Remove the Old ADT Alarm System

ADT is renowned for its quality and consistently ranks among the best in the industry. Before you decide whether to invest in a new system, here’s what you need to know about ADT’s home security solutions.

What Is an ADT Alarm System?

 An ADT system is used to detect break-ins and can alert you when your doors are opened, or windows are broken. If an intruder attempts to get through, the alarm goes off and sends a signal straight to one of 6 monitoring centers. You will be immediately alerted about the situation, which is helpful for non-stop home security. If the sensor trips again, ADT will contact the local authorities.

The ADT monitoring center operates 24 hours a day, 365 days a year, so you’ll always be able to speak with someone when needed. You can control your system remotely with the control panel, key chain remote, or the ADT app on your phone.

Some people find it necessary to hard-wire their alarm system. Still, ADT also provides a wireless system that is installed within minutes without the need for drilling or significant destruction of walls. This can be handy if you frequently move house or rent a property.


How to Remove ADT From the Wall?

Removing the ADT motion sensor from the wall is quite simple. Here’s a quick step-by-step guide for you to get started.

Step 1: Get a screwdriver and unscrew the main screw of the motion sensor.

Step 2: Disconnect the sensor cover’s tether.

Step 3: Now, gently remove the battery. Be sure to take the battery out before long delays.

Step 4: Underneath, there will be a slot, and it will be in the middle section. Again, take the screwdriver, press it lightly, and hold it tightly.

Step 5: While holding the sensor on the bracket, push it downwards until they disconnect.

That’s it! You’ve successfully removed the ADT alarm system!

What Do You Do With Old ADT Equipment?

If the contract terminates, ADT has the right to remove or disable any part of the equipment they own. They’ll usually leave it behind, and you can reactivate service with them anytime.

There are many ways to recycle old ADT equipment. You could sell it on Craigslist, donate it to charity, or recycle it in sustainable practices.

If you have ADT equipment that is no longer being used, you could sell it on Amazon or eBay. This would generate some money for you while also benefiting the environment.

With some systems, you sign up for a leasing agreement with the company. This usually involves paying monthly rent on equipment like your security system or lockbox. When we called ADT and asked, they said they won’t take their equipment back after the contract is up, so be aware of this if you’re renting it now!

Do You Need an Electrician to Remove an Alarm System?

Some people are unsure whether they need an electrician to take down an alarm system. The answer is that it needs to be done by a professional electrician.

The first step is to contact the ADT alarm company and get their permission to remove the alarm system. Before disabling the alarm and proceeding further, you must have a working key code. Find out what type of alarm system the house has before you go in. You should be able to see the kind when trying to gain access. There are different ways of disabling alarms for different types of alarms.

How Do You Remove an Old Wired Alarm System?

If you want to replace your old hardwired security system, it’s worth investing time in learning about the new options to make an informed decision. Home improvements can be delightful, but there are a few things you need to do before starting. Let’s start with the basics:

  1. Disable the Sirens

While this might be a loud annoyance, people might start to call the authorities themselves.

The quickest way to stop the sirens is with the control panel. If you’re in “maintenance mode” and have a typical control panel, go there, and you can turn off noises with it. This lets the system know you’re just doing a thing and not trying to break it.

If there’s no “maintenance mode” setting, resetting it at a consumer level might be your only option. It can be tricky to find the correct circuit breaker; consult a professional electrician.

  1. Disconnect the Power to the System

Don’t attempt to remove an electrical component of your alarm system without cutting the energy supply.

Before you get too close, remember that the safety of live electrical wiring cannot be assured by looking for signs that it isn’t functioning.

Some systems are so hardwired that they plug directly into the wall. They turn off by simply pulling the plug. Due to its weight, the plug assembly might be attached directly to the outlet with a screw. If so, you must unscrew it and detach the cord from your system for power to stop running through it. Getting the ‘plug assembly loosened’ means you’ll need to replace the screw when it’s unplugged.

If the old system is connected to your wiring, look for the switch in your breaker box that turns off the power. If you can’t find it, call a professional If you are not experienced with home wiring, contact a professional.

Remember that the whole purpose of having an alarm system is to protect your well-being. If you have any questions about electricity, don’t put your safety and future at risk to save some bucks/ Don’t compromise on your security by not getting an alarm system. If you think you’ve turned off the power but aren’t sure, use a voltage tester pen or multimeter to check. Never work with home wiring if you don’t have either of these devices.

  1. Remove the Old Control Panel

Once you are positive the power to your old system is cut off, take off its controlling panel for good. Generally, these panels tend to be located near your facility’s front door or other entry points. Carefully remove anything that might be stuck to the device. Hold the device using both hands next to your ear. If you are around nails or screws, use a tool such as a screwdriver to remove them before going on. If necessary, you can also apply to rub alcohol to the adhesive.

Stop if the power supply box is directly wired to your power supply. Check once with a voltage tester before disconnecting any of the wires. Contact a professional if you detect voltage or note anything strange about the connection. Disconnect the wires, then cap them off with wire caps

If the wiring to the old box is currently running within your walls, you’ll now have a small hole to cover up. One easy way to do this might be to replace your existing box with a wireless keypad or touchscreen.

  1. Remove the Remaining Wired Components

Remove the older hardwired cameras, motion detectors, and other old system components. Use a secure fixing if cameras are installed high up on the wall. Usually, things don’t come out quickly, and you shouldn’t try to move them when you’re on/near furniture.

You probably wouldn’t expect wired cameras or intrusion sensors to be still attached to live power after disconnecting their control box. However, 100% of people who were electrocuted in-home accidents don’t expect it to happen either. You’ll never know what some previous homeowner or installer may have rigged up and forgotten about. Before touching any testing device, always check that it is plugged into an outlet and that the cord isn’t too far behind the device. Every time, without fail!

Once you’ve removed all the wired devices, cables, and wires, you may have some small holes in your wall. Stick with Spackle, then patch and paint. Some light putty/patching materials can contain several of these eye sores.


If you follow the advice in this blog post, you should be able to remove your old home security system in a few hours. However, if you’re not confident about wiring work or are inexperienced with home repair – make sure to hire a professional.

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