Alarm System Takeover: Switch Monitoring, Keep the Panel
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What is an alarm system takeover? An alarm system takeover, also called a security system takeover, is when a new monitoring company starts monitoring the alarm panel and sensors you already own, so nothing on the walls is replaced. Whether yours qualifies comes down to two things: getting into the panel's programming with the installer code, and getting the previous company to release the cellular communicator. Ring, SimpliSafe and Vivint Smart Hub systems generally cannot be taken over. Professionally monitored takeover plans are published from $15 a month at Alarm Grid and $19 a month at Surety, month to month.
If you already own an alarm system and you want a different company to monitor it, the industry word for that is a takeover. The panel, the door and window contacts, the motion sensors and the keypads all stay exactly where they are. What changes is the service account, and often the small cellular radio that carries the signal out of your house.
Search for this and you will find dozens of pages, nearly all published by alarm dealers, that describe the process in three cheerful steps and end at a quote form. They are not wrong, but they consistently leave out the two things that actually decide whether your takeover happens: whether you can get into the panel's programming, and whether your old company will let go of the radio. This page starts with those, because if either answer is no, nothing else on the page matters.
The two gates that decide everything
Gate 1: the installer code
Every alarm panel has a user or master code that arms and disarms it, and a separate installer code (sometimes called a dealer code) that unlocks programming. A takeover usually means reprogramming where the panel reports to, so the new company needs programming access.
Alarm Grid, one of the independent monitoring companies that does this work, states plainly in its own takeover documentation that for some systems it will be necessary to know the panel's installer code or master code, and that monitoring companies may lock users out of programming by using a secret installer code that prevents a takeover. That second sentence is the part the marketing pages skip. A locked panel is not a technical fault; it is a business decision made by whoever installed it.
Default installer codes are widely published because legitimate owners get locked out constantly. Alarm Grid's public compatibility table lists them per panel family, and the common ones are below. If a default works, you were never locked. If it does not, the panel was either changed by the installer or locked deliberately.
Gate 2: the communicator, and who owns the account attached to it
Modern panels report over a cellular radio, an internet connection, or both. A cellular radio can only belong to one monitoring account at a time. Alarm Grid's documentation states that any communicator previously used with another company should be released by that company before activating with a new one, and that this is not optional for Alarm.com communicators, which must always be released or replaced.
Surety, another independent provider, describes the same thing from the customer's side: the module is either registered to an active account or unregistered and available. Its guide also names the failure mode worth knowing about in advance, which is that some providers keep the account active after you cancel, leaving your module registered and blocking a clean switch. If your module still shows as registered a day or two after cancelling, that is something to go back to the old provider about.
There is a second communicator problem that has nothing to do with anyone's business practices. Panels sold with 2G, 3G or CDMA radios can no longer report at all, because those networks have been retired. Alarm Grid's own table flags this for older panels, noting for example that the Honeywell L5000 supports 2G cellular only, which is no longer available. If your system has been sitting unmonitored for several years, budget for a replacement LTE radio as the likely outcome rather than the exception.
The order that saves you a headache: confirm your panel model and installer code first, confirm the communicator is LTE and can be released second, and only then cancel your existing service. Cancelling first is the common mistake, because it leaves you with an unmonitored house while you find out whether the takeover was ever possible.
Which panels are realistically takeoverable
The table below is a summary of the panel families that independent monitoring companies publicly document as takeover candidates, along with the default installer code each family shipped with and the usual catch. It is condensed from Alarm Grid's own compatibility table, which is the most detailed public list we could find and which lives in a product FAQ rather than anywhere a normal person would look. Treat it as an orientation, not an install guide: your specific revision, firmware version and communicator all matter, and the provider will confirm them.
| Panel family | Default installer code (as published) | The usual catch |
|---|---|---|
| Honeywell / Ademco Vista (10P, 15P, 20P, 21iP) | 4112 | Widely supported. Needs an IP or LTE communicator; several communicator options require panel version 9.12 or higher for app control |
| Honeywell Vista commercial (40, 50P, 128BPT, 250BPT) | 4140 | Supported, but the 40 and 50P do not support Honeywell's app platform at all, so expect central-station reporting only |
| ADT SafeWatch Pro 2000 / 3000 | 6321 | These are ADT-badged Vista panels, so they are takeoverable in principle. In practice the installer code is frequently changed. See our guide to reusing old ADT equipment and the no-contract monitoring prices for ADT panels |
| Honeywell LynxTouch (L3000, L5100, L5200, L5210, L7000) | 4112 | Panel-specific. The L5000 and L5100 have no LTE upgrade path, so they are limited to internet-only reporting |
| DSC PowerSeries / Neo / Pro | 5555 | Well supported. Older PowerSeries needs panel version 4.2 for the Alarm.com module; Neo needs version 1.1 or higher |
| Qolsys IQ Panel family | 1111 installer, 2222 dealer | No external radio needed, but the internal module must be released by the previous company. No workaround |
| 2GIG GC2 / GC2e / GC3 / GC3e | Panel-specific | Communicator must be released by the previous provider, and the panel usually needs a firmware update first |
| Interlogix / GE (Simon XT, XTi, Concord 4, NetworX) | 4321 (Simon XT), 9713 (NetworX) | Supported, though several of the original radios are discontinued and any existing one still needs releasing |
| Ring, SimpliSafe, Vivint, Abode and similar | Not applicable | Not takeoverable. These report only to their own manufacturer's service by design. No independent company can monitor them |
That last row is the one worth reading twice, because it is the honest answer for a large share of people who arrive at this question. If your system came from Ring, SimpliSafe, Vivint or a comparable app-first brand, "switch monitoring companies but keep the hardware" is not an option that exists, with one Vivint exception: its older installs on 2GIG Go!Control panels are standard Alarm.com hardware, and its 345 MHz sensors can move to another panel even when the Smart Hub cannot, which we cover in how to use Vivint equipment without Vivint service. Your real choices are that vendor's own plans, self-monitoring inside its app where the brand supports it, or replacing the equipment. Our guide to systems with no monthly fee covers the self-monitoring route and its limits, and our system-choosing guide covers starting over.
What a takeover costs, and what it saves
The economic case for a takeover is simple: you are not buying sensors again. The figures below are the entry-level published prices from each provider's own site as of the access dates in the Sources section. We have no commercial relationship with any of them, we have not tested their monitoring response, and we are not ranking them.
| Provider | Published entry price (verify before buying) | Platform focus |
|---|---|---|
| Alarm Grid | No-contract central-station plans $15 to $45 a month; its $10 plan is self-monitoring only (read 2026-10-25) | Multiple panel platforms, including Honeywell, DSC, Interlogix, 2GIG, Qolsys and NAPCO |
| Surety | Plans with professional monitoring published from $19 a month, month to month, no setup or cancellation fee. Self-monitoring is $5 less per plan | Alarm.com only, so Qolsys and 2GIG panels primarily |
| GeoArm | Advertises no-contract monitoring "from $8 per month" (read 2026-10-25) | Multiple platforms |
| Traditional dealer, reactivated | No single figure. The four large providers we read publish monitoring floors of $24.99 to about $50 a month, and most of those floors carry a multi-year agreement. The table below names each one rather than averaging them | Their own equipment and platform |
If you would rather replace the panel than take it over, the month-to-month price of 24/7 dispatch on six DIY systems is set out in no-contract alarm monitoring, compared. Takeover dealers' own plan prices, including Alarm Grid and GeoArm, are in our alarm monitoring prices table.
What the large providers actually publish, and why the floor is not the price
No provider publishes the "$35 to $60 a month" band that is widely repeated for a reactivated traditional dealer, and three of the four large providers we read publish a starting figure below its $35 floor. The figures below are the ones those companies print on their own websites, each read on the same day.
| Provider | Monitoring rate published on its own site (read August 20, 2026; all four re-read November 9, 2026) | What the rate is attached to |
|---|---|---|
| ADT | "Requires 36-month monitoring contract starting at $49.99/mo" on its deals page. ADT's residential terms gave $44.99 a month when we read them on November 2, 2026, so ADT's own pages disagree | A 36-month contract, with early cancel fees and other limitations stated |
| Vivint | $24.99 a month on HomeProtect with a 36-month agreement, or $29.99 a month with no long-term contract. Its three larger packages are published at approximately $49, $54 and $59 a month (re-read 2026-09-18) | Equipment quoted separately at $199.99 to $1,899.99, bought outright or financed |
| Frontpoint | Interactive "regularly priced at $44.99 per month"; Ultimate $49.99; Video-Only from $14.99 | A 36-month contract on every plan, with an early termination fee of 80% of the monthly charges remaining |
| Brinks Home | "Protection starts at just $29.99/month", alongside free professional installation | No contract term is stated on that page, so we do not report one |
The useful thing here is not the range, it is the gap inside one company's own numbers. Vivint is the only one of the four that publishes both a starting rate and what monitoring costs on its standard packages. The starting rate is $24.99. The three packages are approximately $49, $54 and $59. That is a difference of roughly $24 to $34 a month, on the same website, for the same service, because the advertised floor belongs to the smallest bundle. The other three publish the floor and not the second number. So "starting at" is a real price, but it is the price of the smallest system that company sells, and it is not what a comparable takeover is being measured against.
Two further limits we want stated rather than buried. We read four companies, not the industry, and a reactivation quote from your existing dealer is negotiated rather than published, so none of these figures is a quote. And ADT publishes elsewhere that a professionally installed system is subject to its own terms on ownership and relocation, which we cover on moving with a security system.
Two honest caveats about the first table. First, entry prices usually mean sensors only: cameras, automation and video verification cost more on every platform, and the tiers are not directly comparable across providers. Second, a low monthly figure is not automatically the better deal if the takeover needs a $150 to $250 replacement communicator to happen at all. Put both numbers into our five-year cost calculator before deciding, because a one-off hardware cost against a $25-a-month saving pays for itself quickly, while the same hardware against a $5 saving does not.
The sequence, in the order that works
- Identify the panel, not the keypad. On wired systems the model number is on the board inside the metal enclosure, not on the keypad by the door. If you inherited the system with the house, our inherited alarm system guide covers identification and the code problem in more detail.
- Find the communicator and its identifier. Providers ask for the IMEI or MAC and CRC of the radio. Surety's guide notes the IMEI is 15 digits and is usually on a label on the radio, in the panel's settings under About or Cellular, or on the original box.
- Test whether you have programming access before you commit to anything. Getting into and straight back out of programming with a default code costs nothing and answers Gate 1.
- Ask the prospective provider for a written yes or no on your exact model, revision and radio. Every company on this page invites that question, and it is free.
- Read your current agreement for the cancellation terms before you cancel anything. Traditional contracts often carry an early termination fee based on the remaining balance; our costs and contracts guide explains what to look for, and our guide to no money down home security works that fee out as an actual dollar figure. If the equipment was financed separately, check whether that loan ends with the service, because it usually does not.
- Cancel, and confirm the release. Then verify the module actually shows as unregistered rather than assuming it did.
- Activate, then re-verify the whole system. Arm it, trip a door, and ask the new monitoring center to run a signal test with you on the phone. A takeover that reports nothing is worse than no monitoring, because you think you are covered.
- Update your alarm permit. Many cities register the permit against the monitoring company as well as the address, and false-alarm fines follow the permit holder. Our alarm permit and false-alarm fine guide covers how to check your city, and how to renew a burglar alarm permit if yours has lapsed.
Takeover kits and control panel takeover modules
"Takeover" has a second meaning in alarm catalogs. A takeover kit or takeover module is hardware that lets a new wireless panel use the wired door, window and motion sensors already in your walls. It is the route when the old panel itself is the problem: locked, obsolete, or with no communicator upgrade path.
A typical example is the 2GIG Super Switch Take Over Module (model 2GIG-TAKE-345), listed by Surety. Per that listing, it converts up to 8 hardwired zones per module into wireless signals, more modules can be added, it connects to the existing panel's battery for backup power, and it is compatible with 2GIG GC2, GC3 and Edge panels and the 345 MHz versions of the Qolsys IQ Panel 2+ and IQ Panel 4. Two limits from the same listing matter: it does not work with smoke or carbon monoxide detectors, and Surety describes it as not easy to install and recommended only for people with capable electronics skills.
A takeover kit changes the question. The monitoring company is no longer taking over your old panel; you are replacing the panel and keeping the wiring. That sidesteps a locked installer code entirely, but any wired smoke or CO detectors on the old panel need their own plan, and the module has to match the new panel's sensor frequency.
Security camera system takeovers
Cameras follow the same rule as communicators when they are tied to a provider's cloud account. Alarm.com cameras are the clearest case: a Surety team member explains on Surety's support forum that a camera already tied to an Alarm.com account cannot be used with another account until the account owner deletes it, and that there is no way around this because it is a security feature. If your cameras came with an Alarm.com system, ask the previous company to remove them from its account at the same time as it releases the communicator.
A standalone recorder system, a DVR or NVR with its own cameras and no monitoring account, is not really a takeover at all. Nobody has to release anything. What you need is the recorder's administrator login, or the manufacturer's documented reset procedure for that model if nobody has it.
When a takeover is the wrong answer
- The panel is locked and cannot be defaulted. At some point the labour of chasing a lockout costs more than a new system. A provider that tells you this honestly is worth more than one that keeps you hoping.
- The system predates the panel families above. Very old boards can often still be made to report, but you inherit obsolete sensors, no app, and no replacement parts.
- You wanted cameras and automation anyway. If the plan involves buying most of a new system regardless, keeping a fifteen-year-old panel at the centre of it is a false economy.
- Nobody will be arming it. Monitoring an alarm nobody sets is a subscription to nothing. If that is the honest situation, the better spend is on locks, lighting and our free home security checklist.
Where to go next: if you are still deciding whether you want a monthly fee at all, start with our monitoring guide, which lays out what professional monitoring does and does not do. If the system you own is an ADT-branded one, read what you can and cannot do with old ADT equipment first, because that brand is the single most common reason a takeover stalls. Moving the other way, to ADT? See whether ADT can use your existing equipment.
If a takeover is out, our guide to what to do with an old security system compares leaving it dead on the wall with taking it down.
Frequently asked questions
What is an alarm system takeover?
A takeover is when a new monitoring company begins monitoring the alarm equipment you already own, instead of selling you a replacement system. The panel, sensors and keypads stay on the wall. What changes is the service account and, in many cases, the cellular communicator that reports signals.
Do I need the installer code to switch monitoring companies?
Often yes. Alarm Grid states that for some systems it is necessary to know the panel's installer code or master code to take the system over, and that monitoring companies can lock users out of programming with a secret installer code. Panels whose radio simply needs to be re-registered may not require it.
Why does my old company have to release the communicator?
A cellular radio can only be attached to one monitoring account at a time. Alarm Grid states that any communicator previously used with another company should be released before activating elsewhere, and that Alarm.com communicators must always be released or replaced. Surety describes the same condition as the module being registered or unregistered.
Can a Ring, SimpliSafe or Vivint system be taken over?
Generally no. Those systems are designed to report only to their manufacturer's own monitoring service, so no independent company can take them over. The realistic choices are staying on that vendor's plan, self-monitoring within its app where supported, or replacing the equipment.
How much does takeover monitoring cost?
Read on their own sites in October and November 2026, Alarm Grid's professionally monitored plans start at $15 a month (its $10 plan is self-monitoring only), Surety's start at $19 a month, and GeoArm advertises monitoring from $8 a month, all month to month. Add the one-off cost of a replacement LTE communicator if the existing radio is dead or locked. Confirm current pricing on the provider's own site before committing.
What is a takeover kit or control panel takeover module?
A takeover kit or takeover module lets a new wireless panel use the wired door, window and motion sensors already in the walls. Surety's listing for the 2GIG Super Switch Take Over Module (2GIG-TAKE-345) says it converts up to 8 hardwired zones per module, works with 2GIG GC2, GC3 and Edge panels and the 345 MHz Qolsys IQ Panel 2+ and IQ Panel 4, and does not work with smoke or carbon monoxide detectors. It replaces the old panel rather than taking it over, so a locked installer code stops mattering.
Can a security camera system be taken over?
It depends on whether the cameras are tied to an account. A Surety team member states on Surety's support forum that an Alarm.com camera already tied to an account cannot be used with another account until the account owner deletes it, so the previous company has to remove it, just as it releases a communicator. A standalone DVR or NVR system with no monitoring account needs only its administrator login, or the manufacturer's reset procedure if nobody has it.
Sources
- Alarm Grid - Which Systems Can Alarm Grid Take Over? (panel compatibility table, default installer codes, communicator release requirement, 2G availability note) (accessed 2026-08-01)
- Alarm Grid - Alarm Monitoring for Your Existing System (definition of a takeover; proprietary equipment and secret installer codes as blockers) (accessed 2026-08-01)
- Alarm Grid - No-contract alarm monitoring (self-monitoring from $10 a month, central station from $15) (accessed 2026-10-25)
- Surety Home - Monitoring an Alarm.com System You Already Have (registered vs unregistered modules, the account-not-terminated failure mode, IMEI location, published plan pricing) (accessed 2026-08-01)
- Surety Home - 2GIG Super Switch Take Over Module (2GIG-TAKE-345): 8 hardwired zones per module, panel compatibility, no smoke or CO support, installation difficulty (accessed 2026-11-09)
- Surety Support Forum - Remove a camera from old account? (Surety team reply: an Alarm.com camera tied to an account cannot be used on another until the owner deletes it) (accessed 2026-11-09)
- Surety Home - Plans and pricing (professional monitoring from $19 a month, self-monitored from $14) (accessed 2026-08-01; re-read 2026-11-09)
- GeoArm - No-contract alarm monitoring services (accessed 2026-10-25)
- ADT - Deals and special promotions (offer fine print: "Req. min. $349 pro installed system purchase and 36 mo. pro monitoring plan starting at $59.99/mo. Early term fees.") (accessed 2026-08-20). Re-read 2026-08-28: the "min. $349" sentence is no longer present anywhere in that page, which now advertises "$99 home security system includes Google Nest Cam and installation" with "36 mo. contract. Pro Monitoring Plan starting at $59.99/mo. Subject to credit approval." Re-read 2026-11-09: the page now reads "Requires 36-month monitoring contract starting at $49.99/mo. Early cancel fees and other limitations apply."
- Vivint - Vivint monthly pricing: real system costs broken down (HomeProtect $199.99 with a "reduced $24.99 monthly monitoring fee when signing a 36-month agreement" or $349.99 with a $29.99 monthly fee and no long-term contract; Security Starter, Doorbell Security and Safety and Security packages listed at approximately $49, $54 and $59 a month of monitoring and service) (accessed 2026-09-18; re-read 2026-11-09, unchanged)
- Frontpoint - Offer details (Ultimate "regularly priced at $49.99 per month", Interactive $44.99, Video-Only from $14.99, each "governed by a 36-month contract"; early termination fee "80% of the monthly charges for the remainder of the contract term") (accessed 2026-08-20; re-read 2026-11-09, unchanged)
- Brinks Home - How to buy a new security system ("Protection starts at just $29.99/month", free professional installation) (accessed 2026-08-20; re-read 2026-11-09, unchanged)