When looking to secure your house, you should use a “defense in depth” strategy of which an alarm can be part of it but I don’t think you should solely count on an alarm to keep you safe. Many crooks can kick in your front door, get in, go through your bedroom, and be out in five minutes well before anyone can get there and do anything.

So it could help, but only as one part of a multi-pronged strategy.

An alarm that makes noise (but doesn’t necessarily call the cops) can help if someone breaks in and you are home (which, IMO, is the best argument for it) or even to encourage them to get in and out quickly as they know they’ve called attention to themselves.

You want to do several things that will deter a burglar so most just decide that your house is not worth the effort. This is no guarantee (as there are some stupid but opportunistic criminals out there) but for example:

• not having hedges that hide entry points to your house
• getting a dog that barks
• not establishing routines that say “I’m not home” (like, for example, your garage door is always open when you are home but only shut when you leave)
• don’t leave boxes out front that had expensive things, etc…
• Make sure your house is well lit
• Lights on a timer when you are away
• Security Cameras or even fake alarm signs
• Don’t leave your garage door open unattended
• Don’t leave valuables in your car
• Good locks and a strong doorframe

None of these things will stop a burglar, but a combination of things may make them think that your neighbor is a better target. And, regardless, have good insurance.

If someone does break in, don’t keep valuables in your bedroom/main closet or bath as that is the room most likely to get tossed. Have a safe in an obscure place that bolted down (like under the sink in a bathroom), or maybe have something a little valuable out in the open so they grab that and run.