Do You Actually Know If Your Alarm System Works?
Most commercial alarm systems haven't been properly tested in years. Sensors degrade, batteries fail quietly, and monitoring contracts lapse. The alarm looks like it's working until the moment it doesn't.
Most business owners assume their alarm works because they arm and disarm it every day. But "it arms and disarms" is not the same as "it will detect a real intrusion." Sensors fail, backup batteries degrade, and monitoring contracts expire quietly. Annual professional testing is the only way to know for certain.
Key Takeaways
- 1Arming and disarming your system tests the keypad and panel, not the sensors.
- 2Backup batteries in alarm panels typically need replacement every 3-5 years and degrade without obvious signs.
- 3Zones can be bypassed temporarily and never re-enabled -- most owners don't know which ones are currently active.
- 4Monitoring contracts can lapse after billing changes, company mergers, or management transitions.
- 5Annual professional testing is the only way to confirm every sensor, every contact, and your monitoring connection are actually working.
Most business owners we talk to assume their alarm works. They have a keypad. They arm and disarm it every day. When they accidentally trip it, the monitoring company calls. That feels like a working system. It usually is. But "it arms and disarms" is not the same as "it will detect and report a real intrusion."
The Sensors You're Not Testing
When was the last time someone physically tested every motion sensor and door contact in your building? Not armed the system and walked out -- actually walked the space in test mode and tripped each sensor individually?
Sensors fail. Motion detectors lose sensitivity over time. Door contacts separate from frames after years of use. If you haven't tested them, you don't know which ones are working.
The Battery That's Been Draining for Two Years
Every alarm panel has a backup battery that keeps it running during a power outage. Those batteries degrade. After three to five years of continuous use, they often can't hold a charge long enough to get through a real outage.
Most panels report a low battery alert -- but that notification often goes to the monitoring company, not to you. Ask when your panel battery was last replaced. If nobody knows, replace it. It's a $30 part.
The Monitoring Contract You Should Verify
Your alarm can be in perfect working order and still protect nothing if your monitoring contract has lapsed. Monitoring companies merge, change ownership, and go out of business. Billing changes hands during management transitions. Contracts expire quietly.
Pull your monitoring contract. Confirm it's active. Call the monitoring center directly and verify they have your current contact information, your emergency contacts, and your entry code. It takes five minutes and tells you immediately whether the coverage you're paying for is actually in place.
The Bypass Problem
Most alarm systems let you bypass individual zones -- a useful feature when a sensor is malfunctioning and you still need to arm the system. The problem: zones get bypassed temporarily and never re-enabled.
Pull your system's bypass report if it has one. Ask your monitoring company if they have a log. Find out if any zones are currently bypassed that should be active.
What Annual Testing Actually Covers
A proper alarm test covers every sensor and contact in the building. It tests communication to the monitoring center. It tests the backup battery under load. It reviews the event log for unexpected bypasses or panel faults.
This is a job for your alarm installer or service provider, not a walkthrough you do yourself. If your system hasn't been tested in more than a year, schedule one. The only time an alarm system has to work is the one time something actually happens -- and that's not when you want to find out it wasn't ready.
Your Checklist
- Locate your monitoring contract and confirm it's currently active
- Call the monitoring company to verify your contact list and entry code are current
- Ask when your panel battery was last replaced -- replace it if nobody knows
- Pull a bypass report from your system and check for zones that shouldn't be bypassed
- Schedule a professional walk-through test if it's been more than a year
- Make sure your emergency contact list with the monitoring company reflects current staff
Common Mistakes to Avoid
Assuming the system works because you arm and disarm it daily.
That tests the keypad and panel communication. It does not test whether individual sensors are functional.
Ignoring low battery alerts or not knowing where they go.
A panel running on a degraded battery may appear functional until an actual power outage. Know where your panel alerts are sent.
Not verifying monitoring after billing or management changes.
A canceled credit card or a PM transition can quietly lapse a monitoring contract. Verify directly with the monitoring company at least once a year.
Frequently Asked Questions
How often should a commercial alarm system be professionally tested?
At minimum annually. For high-security environments or systems protecting significant assets, twice a year. PAXCare maintenance plans include annual inspection and testing as part of the service.
What does a professional alarm test include?
Walk-through testing of every sensor and contact, a communication test to the monitoring center, backup battery load test, review of the panel event log for bypasses or faults, and a written summary of any issues found.
How do I know if my monitoring contract is still active?
Call the monitoring company directly. Ask them to confirm your account status, the contact list on file, and your entry code. If the number on your contract doesn't connect or the company name is unfamiliar, your contract may have transferred or lapsed.
What does it cost to replace an alarm panel backup battery?
Most panel backup batteries cost $20-50 for the part. Labor to replace and test is typically under an hour. It's one of the cheapest maintenance items on a security system and one of the most commonly skipped.
Related Services
Not sure when your alarm was last properly tested?
PAX Security inspects and services commercial alarm systems across NYC and NJ. PAXCare plans include annual testing so you're never left guessing.