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Systems + Takeovers

Keep your existing system if it makes sense. Upgrade when it does not.

We help customers escape the contract cycle by taking over compatible alarms, or by installing modern platforms when that is the cleaner long-term move.

Check My System Compatibility Build My System
UL Listed Monitoring No Contracts Fast Setup
Best fit
Takeover

Use your current wiring, sensors, or panel when the system can be reprogrammed safely and reliably.

New install

Move to AJAX System when the old platform is locked down, outdated, or not worth fighting.

Professional monitoring and installation — without the big-box games

Defendr Security is built by people who have installed and sold professional alarm systems for over 16 years. We’ve seen every contract trick, every equipment lease, and every “free system” that turns into a debt trap. KLEVR was built to put the power back into the hands of the customer with transparent options, straightforward activation, and real protection.

UL Listed monitoring
Central station monitoring with rapid handling for intrusion and life-safety signals.
Texas-owned, veteran-operated
A local company mindset with professional standards and accountability.
No contract cycle
Month-to-month monitoring with clear terms and no confusing fine print.
Fast notifications
Event notifications by text or email so you’re informed as signals occur.
Alarm system takeover
Takeover-first approach
If we can safely and reliably take over your existing alarm system, we’ll tell you. If an upgrade is the better path, we’ll explain why.

Alarm system takeovers

If you already have an alarm system, we may be able to take it over and get you professionally monitored without replacing everything. Compatibility depends on the panel model, the communication method, and whether the system is locked to another provider.

Typically supported
  • Standard alarm panels that can be reprogrammed
  • Systems where the communicator can be replaced
  • Hardwired or hybrid setups with existing sensors
Typically not supported
  • Locked or proprietary systems tied to a provider
  • Systems requiring dealer-only cloud access
  • Panels we cannot verify or service safely
What we verify before we take over a system
Panel model and current programming access
Communication path (cell/IP) and signal reliability
Zone inventory (doors, motions, glassbreak, etc.)
Life-safety devices (smoke/CO) and required handling
Whether the system is provider-locked or proprietary
Test signals and notification setup
Some brands and models can be takeover-friendly, but every panel is different. The compatibility check is the fastest way to confirm.
How a takeover works
  1. 1Submit your system details and photos so we can confirm compatibility.
  2. 2We confirm the best path: reprogram, swap communicator, or upgrade.
  3. 3Activate monitoring and set up your notifications by text or email.
Start Compatibility Check Talk to a Specialist

Systems we install

When we’re building a new system or camera setup, we prefer options that are reliable, priced clearly, and easy to support long term. Choose between alarm systems and camera system installation options below.

Installed System

AJAX System

AJAX System
  • Clean, modern touchscreen experience for everyday use
  • Designed for dependable signaling and professional monitoring
  • Great fit for homeowners, renters, and small businesses
  • Excellent choice when you want reliable protection without overcomplicating the system
Not sure which route is best?

If you have an existing system, start with the compatibility check. If you want the cleanest experience, build a new system with the options we install.

Check My System Build My System

Why we prefer these systems

We install systems that reduce false alarms, simplify daily use, and make activation straightforward. Our team has installed and sold professional alarm systems for over 16 years, and we’ve learned what actually holds up over time.

Clear ownership
You’re not trapped in an equipment lease. You can pay upfront, use Buy Now Pay Later, or choose the 36-month contract option.
Clean activation
Preprogrammed options and simple setup so you can get protected without a sales maze.
Real response
Professional monitoring for intrusion and life-safety events with fast notifications by text or email.
Built for control
We design the experience around the customer, not the contract.
When we recommend upgrading instead of taking over
The existing system is locked or proprietary
Communication is unreliable or outdated
You want a cleaner user experience and simpler support
You’re expanding coverage and want a modern platform
Quick Links
Monitoring Details Monitoring Plans Build My System Compatibility Check Contact Us
For the fastest answer, submit your panel photos and model info through the compatibility check.