Home Security

A security system that was tested once, on installation day, is a system you hope works. Batteries die, adhesive loosens, cameras fog over and firmware ages. Most failures are silent: nothing beeps until the night you need it. This checklist turns upkeep into a short routine by frequency. It is part of our DIY home security setup guide . The routine at a glance When What to do Monthly Run the system test, press smoke alarm test buttons, check battery indicators, open and close each door and window sensor, brush dust off sensors Quarterly Clean camera lenses, clear cobwebs, check cables and mounts, change weak passwords, update apps and firmware Yearly Replace sensor batteries, review codes and users, book a professional inspection if you have monitoring After a storm or move Check outdoor devices, Wi-Fi signal and sensor alignment Monthly checks Test the system. Safehome suggests a comprehensive test each month, using the control panel's built-in test mode where it has ...

Door and window sensors are the cheapest, most useful part of a wireless alarm: a small sensor on the frame and a magnet on the moving part. When the magnet moves away, the sensor tells the hub. Installing them takes minutes, but alignment and gap matter more than most people expect. This guide covers where they go, how to mount them and how to test them. It is part of our DIY home security setup guide , and sensors explained covers how each type works. Where to put them Sensor on the frame, magnet on the moving part. Abode's and Alarm Grid's guides both say to fix the sensor to the door or window frame and the magnet to the door or window. Reverse them if needed. Abode says that where the frame protrudes beyond the door, the magnet may need to go on the frame and the sensor on the door. Cove says the same for narrow window frames. Sliding doors: on a double door, Cove puts the magnet on the centre strip and the sensor on the active door. Priority: start with the fro...

Installing a video doorbell is one of the easier upgrades in a DIY system, as long as you handle the one risky part correctly: the wiring. A battery model needs only a bracket and a screw; a wired model uses your existing doorbell cables and a low-voltage transformer. This guide covers both, with the safety checks that manufacturers insist on. It is part of our DIY home security setup guide . Battery or wired? Battery: no wiring, so it suits renters, but you recharge or replace the battery. Pair it with a chime or hub for sound inside. Wired: constant power and no battery chores, but it needs compatible wiring. Blink, for example, says its wired doorbell needs 16 to 24 volts AC at up to 40 VA from your transformer, and that the transformer voltage must match the chime. Choose your model first; see video doorbells without a subscription for how recording and fees work. Before you start: check compatibility Find the indoor chime and the transformer and read the voltage rating...

Every smart camera, lock and speaker you add is also a computer on your network. Most successful attacks on smart homes do not use clever tricks; they use default passwords, old firmware and a router nobody has touched since installation. This guide lists the steps that matter most, in the order to do them. It is part of our smart home security guide . Why the router comes first Tom's Guide calls your router the gateway to all of your smart home devices and says lax router passwords are the main reason for Wi-Fi network break-ins. A guide summarised by SecurityBrief in February 2026 cited research from Broadband Genie showing that more than 86 percent of respondents had never changed their router administrator password. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) says default router credentials may be readily available on the internet and calls changing them crucial. Eight steps, in order Change the router admin password and name. CISA also advises changi...

Voice assistants can lock your door, arm your alarm and even listen for breaking glass while you are out. They can also, if set up badly, let a stranger shout through a window and open your garage. This guide explains what Alexa, Google Home and Apple Home actually do for security, which settings matter and how the Matter standard changes the compatibility picture. It is part of our smart home security guide . What Alexa Guard does Alexa Guard is a feature of Amazon Echo speakers and displays. When you set it to Away, GearBrain says it listens through the microphones for the sounds of smoke and carbon monoxide alarms and of breaking glass, and notifies your phone. The detectors do not need to be smart; Alexa simply listens for the alarm sound. SafeWise lists ADT and Ring Alarm among the security systems it works with, which can arm automatically when Guard hears something, and describes Alexa Guard Plus as a paid tier at about $4.99 a month with extra features. Treat it as an early-w...

Windows and sliding glass doors are the easiest entry points to overlook. The Seattle Police Department's crime prevention bulletin calls windows a primary point of entry for burglars and says window security is a must. The good news is that most fixes are cheap and need no tools beyond a screwdriver. This guide covers locks, bars, film and sensors, and it keeps one safety rule in mind: any window that is your fire escape must still open fast from the inside. It is part of our room-by-room home security tips . Why unlocked windows matter most The National Crime Prevention Council reports that in almost half of completed residential burglaries, thieves simply walked in through unlocked doors or crawled through unlocked windows, according to a Palm Beach County Sheriff's Office handout. Before you buy anything, make a habit of closing and latching every ground-floor window whenever you leave or go to bed. Match the fix to the window Window type Weak point Low-cost fix Doubl...

Monthly fees are the main reason people put off buying a home security system. The good news is that you can build a useful one without a subscription, as long as you know what "no monthly fee" really means and what you give up. This guide explains the options, the trade-offs of monitoring the system yourself and how to build a layered setup that costs nothing each month. It is part of our guide to choosing a home security system . What "no monthly fee" means A no-fee system is one you monitor yourself. The sensors and siren work, and your phone gets alerts, but no call center dispatches help for you. If an alarm goes off, you decide whether to call the police. Everything else, such as cellular backup, professional dispatch and cloud video recording, usually needs a paid plan. Which systems work without paying monthly? System Without a plan Cheapest paid option abode Free plan with self-monitoring, according to Security.org Standard self-monitoring at $8.49 a ...