Home Security · Maintenance

Home security maintenance

Test the full system monthly in test mode, replace sensor batteries on a schedule rather than waiting for warnings, keep camera and panel firmware current, and review who has access codes and app logins twice a year. Systems fail silently — the absence of an alarm tells you nothing about whether it would work.

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Monthly test. Call the monitoring center, place the account on test, and trip every device: each door and window contact, each glass-break, each motion sensor, and the panic function if you have one. Confirm the center received each signal. This is the only way to know that a sensor has not quietly died or drifted out of alignment.

Batteries on a schedule. Write the install date on each sensor. Replace on a fixed interval rather than waiting for low-battery alerts you may not notice on a keypad you rarely look at. Also check the panel's own backup battery, which is what keeps the system alive through a power cut.

Firmware and app hygiene. Cameras, panels and smart locks are network-connected computers. Keep firmware updated, use a unique strong password on the account, and turn on multi-factor authentication if the provider supports it. Review who has an app login — old roommates, former partners, a contractor you gave temporary access to. Remove codes and logins when people leave.

False alarm discipline. Since user error causes roughly half of false alarms per the ASU Center for Problem-Oriented Policing, most prevention is habit: check that doors and windows are shut before arming, keep pets out of motion zones or use pet-immune sensors, and make sure everyone in the household actually knows the disarm code and the monitoring center's verification password. Most departments allow only three or four free false alarms per calendar year before fining.

How to choose

Test monthly, in test mode: Trip every sensor and confirm the monitoring center saw each one. Put it on a recurring calendar reminder.
Replace batteries by date, not by warning: Write the install date on each device. Low-battery notices on a rarely-checked keypad are easy to miss for months.
Update firmware and enable MFA: Cameras and panels are internet-connected computers. Treat the account like a bank login, not an appliance.
Audit access codes twice a year: Remove codes and app logins for anyone who no longer needs them. Old access is the most overlooked security hole.
Make sure everyone knows the verification password: The monitoring center will ask for it. A household member who does not know it will get police dispatched on a normal Tuesday.

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FAQ

Home Security maintenance — common questions

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How often should I test my alarm system?

Monthly is a reasonable habit, and always after any change to the house, the network or the household. Place the account in test mode first so you do not generate a false alarm — most departments allow only three or four free false alarms a year before fining.

How often do sensor batteries need replacing?

Manufacturer specifications vary and we would rather you check yours than trust a general number. What matters is the habit: record the install date on each device and replace on a fixed schedule rather than waiting for a warning you may not see.

Do I need to update my security camera firmware?

Yes. Cameras and panels are network-connected devices and firmware updates commonly close security flaws. Enable automatic updates where offered, and use a unique password plus multi-factor authentication on the account.

What causes most false alarms?

User error, per the ASU Center for Problem-Oriented Policing — "using incorrect keypad codes, leaving a door or window open when activating the alarm, roaming pets or helium balloons." That is roughly half of all false alarms, with faulty equipment and poor installation causing much of the rest.

Sources

Where these figures come from

ASU Center for Problem-Oriented Policing — False Burglar Alarms · retrieved 2026-07-26