A basic DIY starter kit runs about $130 to $300, while a larger setup with cameras and smart devices can reach $1,500 or more. Professional installation usually adds $99 to $199. Then there's monitoring: self-monitoring is often free or up to about $20 a month, and professional 24/7 monitoring averages $25 to $40, climbing toward $60 for premium plans. Most homeowners land around a $200 to $350 equipment spend plus $20 to $40 a month.

It comes down to budget and how hands-on you are. DIY systems like SimpliSafe, Ring, and Cove use peel-and-stick sensors and set up in an afternoon, which saves you the $100 to $200 install fee. Professional installation costs more upfront but gives you a cleaner setup, expert placement, and less chance of coverage gaps or false alarms. If you rent or live in a smaller place, DIY is usually the smart call.

Not always. With self-monitoring, the system sends alerts straight to your phone and you decide whether to call for help — that works fine if you're usually around and responsive. Professional monitoring means a 24/7 center watches your system and dispatches emergency services even when you're asleep or traveling. For most people who want true peace of mind, the $20 to $40 a month is worth it, especially against the average burglary loss of around $2,600.

Often, yes. Many homeowners insurance companies offer a 10 to 20% discount for a monitored system, which can offset a big chunk of your monthly fee. The discount usually isn't automatic, though — call your insurer first, ask what level of monitoring qualifies, and find out what paperwork (like a monitoring certificate) they need.

Yes. Self-monitored systems let you skip the recurring fee entirely — you buy the equipment once and get alerts through the app for free. Standalone cameras with free cloud or local storage (like some Wyze or Reolink models) are a popular no-subscription route. The trade-off is that you're the one responding to every alert, with no central station backing you up.

Cover the spots that matter first rather than buying a big bundle. Most homes do well with a video doorbell at the front, one camera covering the back door or yard, and an indoor camera for a main living area. Bigger or multi-story homes may want a few more for side entrances and the garage. Cameras run roughly $50 for a basic indoor model up to $300 or more for a 4K outdoor unit.

Not all of them. Most DIY systems are month-to-month with no commitment, so you can cancel anytime. Professionally installed systems from companies like Vivint or ADT often involve a 36 to 60 month contract, partly because the equipment cost is rolled into the monthly fee. Always read the cancellation terms before signing — that's where the real cost hides.