The home security industry has a financial interest in keeping you scared, and it shows in the advertising. Here is the unglamorous reality: most residential burglaries are quick, opportunistic, and aimed at the easiest house on the block. The burglar's enemies are time, noise, and visibility. Nearly everything that raises those costs is cheap; nearly everything expensive is selling you something else — mostly monitoring contracts and financed hardware.
What actually deters break-ins
Start with the doors, because that is where most forced entries happen — and usually not by defeating the lock. The door frame fails: a standard strike plate is anchored by half-inch screws into soft jamb wood, and one kick tears it out. The fixes cost almost nothing:
- Three-inch screws in every hinge and strike plate, reaching the wall stud behind the jamb. Cost: a few dollars. This is the single highest-value security upgrade in existence.
- A quality deadbolt, properly installed with a reinforced strike. You do not need the exotic lock a locksmith forum recommends; you need any solid deadbolt on a frame that will not splinter.
- Sliding door reinforcement — a dowel or track bar plus an anti-lift pin, since sliders are often lifted off the track rather than defeated at the latch.
- Window pin locks on ground-floor and otherwise reachable windows — a few dollars each, and they let you vent a window a few inches without leaving it open to the world.
- Lighting on the approaches. Motion-activated fixtures at the front and rear doors. Solar models mean no wiring.
- Visibility. Trim the shrubs that screen your windows from the street. Burglars love privacy landscaping more than homeowners do.
Cameras deter mostly by being seen, and a $25 camera the burglar notices beats a $300 one he does not. Doorbell cameras earn their keep more for package theft and door-to-door screening than burglary. One honest caveat: recorded video mostly helps after the fact, and police clearance rates for burglary are low — prevention beats evidence.
Where the industry makes its money
The classic model is razor-and-blades: "free" or discounted equipment in exchange for a 36- or 60-month monitoring agreement at $40 to $60 a month, with steep early-termination fees and, in some cases, equipment financing quietly attached to your credit. Over five years that is $2,400 to $3,600 — more than the hardware in this article costs by an order of magnitude. Read any financing agreement the way the Consumer Financial Protection Bureau's consumer tools teach: total cost over the term, cancellation terms, and what happens to the equipment if you stop paying. Be especially wary of summer door-to-door sales crews using scare statistics and "today only" pricing — high-pressure tactics are themselves a red flag, and USA.gov's scams and fraud pages cover how to check a company and where to complain. A legitimate company will still exist next week; sign nothing on your doorstep.
Also file under marketing: window-break sensors on second-story windows nobody can reach, "professional installation" fees for peel-and-stick devices, and yard signs sold only with contracts. The sign itself has deterrent value — which is exactly why you can buy a used one for five dollars. Cellular backup, battery sirens, and glass-break sensing all sound premium but come standard on inexpensive kits now; before paying a monthly fee, ask what specifically it buys that your phone does not already do.
Ask your insurer before you buy anything
Homeowners and renters policies commonly discount premiums somewhere between 2 and 15 percent for security measures, and the discount schedule tells you what your insurer thinks actually matters: deadbolts, smoke detectors, and monitored systems top the list. Call and ask which devices qualify and what documentation is needed. Sometimes the discount covers the annual cost of a self-monitoring subscription on its own — and if a salesperson claims a system "pays for itself in insurance savings," that phone call is how you check the math instead of taking a commissioned word for it.
A sensible setup for under $200
- Three-inch screws for all exterior hinges and strike plates — about $10
- Reinforced strike plate or door reinforcement kit — $15 to $60
- Two motion-sensor lights covering the main approaches — $30 to $50
- One or two visible Wi-Fi cameras with local or cheap cloud storage — $25 to $80
- A self-monitored door/window sensor kit that sirens locally and pings your phone, no contract — $40 to $80
- Timers or smart plugs for lamps when you travel — $15
Self-monitoring, where your phone gets the alert instead of a call center, costs nothing or a few dollars monthly and covers most situations for most people. In our experience comparing these setups for family members, the no-contract kit plus a reinforced door beats the financed "professional" system on every axis except one: it will not call for help when you cannot.
When paying for monitoring makes sense
That exception is real. If the household includes someone who may not be able to use a phone in an emergency — an elderly parent living alone, a person with a serious medical condition — professional monitoring or a medical alert device is buying something self-monitoring cannot deliver, and it may be worth every penny. Month-to-month monitoring plans with no equipment financing now exist from several reputable companies; there is no longer any reason to accept a five-year term. Seniors weighing this cost alongside other expenses should look at our roundup of benefits for people over 60, which can free up the budget for it.
Renters can do almost all of the above — sensors, cameras, lighting, and track bars are removable, and a landlord who refuses to fix a broken exterior lock is violating basic habitability rules covered in our guide to renter rights. Wherever you live, start tonight with the ten-dollar fix: a screwdriver, long screws, and every strike plate in the house.
