The short answer on cost

Most homeowners nationwide spend somewhere between $300 and $1,500 up front for equipment and installation, plus $20 to $60 per month for professional monitoring. Where you land inside that range depends on three things: how many entry points you're covering, whether you want cameras as well as an alarm, and whether you self-install or ask a top-rated provider do it.

That's a wide spread, so this guide breaks every line item down honestly — including the fees companies tend to bury — so you can walk into any quote knowing what a fair number looks like for a U.S. home.

Equipment costs, component by component

Hardware is the piece most people picture first. Here's what individual components typically run in the U.S. market in 2026:

  • Control panel / hub: $80–$200. The brain of the system.
  • Door & window sensors: $15–$40 each. A typical 3-bed home needs 8–12.
  • Motion sensors: $25–$60 each.
  • Indoor/outdoor cameras: $40–$220 each depending on resolution and whether they're wired.
  • Video doorbell: $80–$200.
  • Smart locks & keypads: $100–$300.
  • Glass-break & environmental sensors (smoke, flood): $30–$80 each.

A modest camera-and-doorbell setup can start around $300 in hardware, while a full system with monitored alarm, multiple cameras and smart locks for a larger your home climbs toward $1,200–$1,500. Compare our comparison of top systems to see roughly where your home fits before you ever get a quote.

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Installation: DIY vs. professional

You'll see two very different numbers here. DIY kits advertise "free installation" because you are the installer — peel-and-stick sensors, an app, and an afternoon of your time. Professional installation nationwide generally runs $100–$300, and for larger or wired systems it can be more.

The reason many homeowners still pay for professional install is placement. A camera aimed three feet too high, a motion sensor pointed at a sunny window, or a sensor missed on a garage side-door are the exact gaps burglars exploit. When a good installer does a free assessment, mapping those angles is the whole point.

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Monitoring fees — the part that adds up

Monitoring is the recurring cost, and over a few years it usually outweighs the hardware. Your options:

  • Self-monitoring: $0–$10/month. You get phone alerts; you're the one who has to act on them.
  • Professional monitoring: $20–$60/month. A monitoring center watches 24/7 and dispatches police, fire or medical when an alarm trips — including when you're asleep or away.

The best no-contract providers keep this simple: 24/7 professional monitoring with no long-term contract, so you're never locked into a multi-year agreement to get a fair monthly rate. If a monitored alarm matters to you, our guide to monitored systems is where to start.

Hidden fees to watch for

The sticker price is rarely the real price. Before you sign anything, ask specifically about:

  • Activation / setup fees tacked onto month one.
  • Long-term contracts (24–60 months) with steep early-termination penalties.
  • Equipment leasing — you may pay monthly forever and never own the gear.
  • Price jumps after a "promo" year.
  • Cloud video storage billed separately per camera.

How to get the most protection for your money

You don't need the biggest package — you need the right one for your home's weak points. A few ways homeowners nationwide keep costs sensible:

  • Start with entry points that matter most: front door, back door, garage, and any ground-floor window out of street view.
  • Add cameras where they deter, not just record — visible cameras at the driveway and front door do double duty. See the best places to install cameras for a room-by-room map.
  • Ask about a homeowners-insurance discount; many U.S. insurers knock 5–20% off premiums for a monitored system, which can offset the monthly fee.
  • Skip the contract. No-contract monitoring means the company has to keep earning your business.

Not sure which components you actually need? Take our two-minute Home Security Score quiz, or get a free assessment from a top-rated provider.