How Many Security Cameras Does a House Need?
Fewer than most kits sell you, placed better than most kits get placed. Count the approaches, then cover each one well.
Updated · DCSI, Inc., Lutz FL
The most common camera mistake isn't too few cameras. It is cameras pointed at walls, roofs, and the neighbor's house while the side gate goes uncovered. Eight cameras placed for convenience record less useful footage than four placed for the approaches someone would actually use.
So start from the other end: walk the property and list every way a person could reach a door or window. Each of those is a camera, and most homes have fewer than you'd think.
The Approaches to Cover
Front door & porch
Where packages, visitors, and most daytime attempts arrive. Mount for faces at about head height range, not the top of a hat.
Driveway & garage
Vehicles, plates, and the garage door that gets left open. Often one camera covers both on a standard lot.
Each side gate
The route into the back yard. On narrow Florida lots, a single camera can usually cover a side yard end to end.
Rear yard, lanai & pool
The approach nobody sees from the street — and the one that matters most on lakefront, golf-course, and conservation lots.
Detached buildings
Sheds, workshops, barns, and docks on larger properties, each of which may need its own camera.
Typical Camera Counts
Townhouse or condo
Entry, rear patio or garage, and possibly a shared approach.
Standard suburban lot
Front, driveway, both side gates, and the back of the house.
Large lot or lakefront
Adds wider rear coverage, a dock or shoreline, and the far side of a pool.
Acreage
Gate, long drive, outbuildings — and long cable runs between them.
Placement matters more than count
Mount high enough to be out of easy reach — eight to ten feet is typical — but not so high that every face becomes the top of a head. Mounting under a soffit keeps cameras out of the afternoon rain and direct sun, both of which shorten their life in Florida.
On tightly spaced lots like Westchase, aim matters for privacy too: a wide-angle camera pointed carelessly looks straight into a neighbor's window.
Wired PoE vs. Wi-Fi Cameras
A PoE (power over Ethernet) camera gets power and data over one cable from a local recorder. Nothing to charge, no Wi-Fi signal to lose, and the recorder keeps recording when the internet drops — which, with a battery backup on the recorder, includes most storms.
Wi-Fi and battery cameras trade that reliability for an easier install. They are a reasonable choice for a renter or a single doorbell, and a poor one for a whole-property system you expect to rely on for years. The camera systems we install are wired to a local recorder for exactly that reason.
Security Camera Questions
How many security cameras do I need for my house?
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Count the ways someone can approach the house, not the walls. Most suburban Florida homes need four to six: front door, driveway, each side gate, and the rear of the house or lanai. Townhouses often need two or three, and acreage properties with gates and outbuildings can need eight or more.
Are wired (PoE) or Wi-Fi security cameras better?
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Wired PoE cameras are more reliable: one cable carries power and video, nothing needs charging, and recording happens on a local recorder that keeps working if the internet goes down. Wi-Fi and battery cameras are easier to put up but depend on signal strength, battery life, and often a cloud subscription. For permanent coverage of a home, PoE is the standard we recommend.
How many days of security camera footage should I keep?
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At least as long as it takes you to notice a problem — for most homes that means two to four weeks, and longer for a seasonal home or a business. Storage is sized from the number of cameras, the resolution, and whether they record continuously or only on motion.
What resolution security camera do I need?
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Resolution matters less than how many pixels land on what you want to identify. A 4MP camera aimed correctly at a front door identifies faces; an 8MP camera covering an entire back yard may not. Use wider cameras for overview and tighter ones for entry points, and check night performance, since that is when most footage gets reviewed.
Why do my security cameras show spider webs at night?
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Infrared night illumination on the camera attracts insects, and insects attract spiders. In Florida this is constant. Cameras with separate or external IR, mounting under a soffit rather than on an open wall, and occasional cleaning help — and on a motion-recording system, webs can trigger endless false recordings until they are cleared.
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We'll Count Them With You
A free walk of the property, a camera plan drawn around the approaches, and a fixed written quote.