Alarm Systems

Security Alarm

Perimeter and interior alarm systems with 24/7 central-station monitoring, so a break-in triggers an immediate response day or night.

Get a Same-Day QuoteCall (636) 294-5645
A Reliant Security technician operating a wall-mounted alarm touchscreen panel inside a home.

Overview

A professionally monitored security alarm is the foundation of any protection plan. Reliant designs intrusion systems around your building's real entry points — doors, windows, and open interior spaces — so an unauthorized entry is detected the instant it happens and verified by our monitoring center.

Every system is backed by cellular and battery communication, so it keeps reporting even if a burglar cuts the power or phone line. When an alarm is confirmed, we dispatch the right responders immediately, day or night.

What's included

  • Door, window & motion sensors
  • 24/7 central-station monitoring
  • Glass-break & shock detection
  • Cellular & battery backup

Why choose Reliant for security alarm

Around-the-clock monitoring

Trained operators watch your system 24/7 and dispatch police or fire the moment an alarm is verified.

Layered detection

Entry, motion, and glass-break sensors work together so intrusions are caught at the perimeter and inside.

Tamper-resistant

Cellular and battery backup keep the system online through power and phone-line failures.

Security Alarm FAQs

What happens when my alarm goes off?
The signal is sent to the professional monitoring center, where a trained operator follows the appropriate verification procedure. Depending on the event and your response instructions, the operator may contact you, your emergency contacts, or the appropriate emergency agency.
Will the alarm still work in a power outage?
Yes. A backup battery keeps the panel running and cellular communication keeps it reporting even without power or a landline.
Can I add cameras or smart devices later?
Absolutely. Our alarm systems are modular, so you can add cameras, smart locks, and automation whenever you're ready.
How much does a security system cost?
Every property is different, but Reliant provides clear, itemized recommendations based on the equipment, installation, and monitoring services you actually need. Your pricing and agreement terms are reviewed before installation begins.
Is there a warranty?
Reliant offers applicable manufacturer warranties, a one-year workmanship warranty, and additional warranty benefits on qualifying monitored alarm systems. Exact coverage is provided with your proposal.
Can I use the system without professional monitoring?
Some equipment can operate locally without monitoring, but professional monitoring provides around-the-clock signal response and cellular communication services. We’ll explain the available options and limitations.
Do I need to sign a contract?
Monitored plans typically start with a 36-month monitoring agreement, which is what keeps the monthly rate where it is. Month-to-month options are available in certain situations — tell us about your project and we'll lay out the choices before you commit.
What happens after I request a quote?
Reliant will discuss your goals, determine whether a site visit is needed, and then provide clear recommendations and pricing. Larger or more complex projects may require additional design work before final pricing is issued.
Design My Security System

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Get a same-day quote

Tell us about your project and we'll put together a detailed proposal. No obligation, no pressure — just a straight answer on what it will cost.

Get a Same-Day QuoteCall (636) 294-5645