Wired vs Wireless CCTV: Which Should You Choose?

Let me tell you what happens at least once a month: someone calls us to replace a wireless CCTV system with a professional wired installation that "worked fine for a bit" but now constantly drops out, has grainy footage, or just stopped working altogether.

I'm not saying wireless is always bad. But there's a reason professional installers—including us—recommend wired systems for permanent installations. Let me explain the real differences.

What "Wireless" Actually Means

First, let's clear up a common confusion. When people say "wireless CCTV," they usually mean one of two things:

WiFi cameras (like Ring, Arlo, Eufy) – These connect to your home WiFi network. They still need power, either from a mains cable or rechargeable batteries.

Wire-free cameras – Battery-powered cameras with no cables at all. These are the "truly wireless" option.

And then there's what professionals call "wired" CCTV:

PoE (Power over Ethernet) cameras – A single ethernet cable provides both power and data. No WiFi dependency, no batteries. This is what we install 90% of the time.

The Reliability Problem

WiFi cameras depend on your home WiFi signal reaching wherever the camera is mounted. That sounds simple, but:

• WiFi signal degrades through walls, especially thick Victorian brick
• Your router is probably inside, while cameras are outside
• WiFi networks get congested—when everyone's streaming Netflix, your camera might buffer
• If your internet goes down, cloud-dependent cameras stop recording (or at least stop alerting you)

Wired PoE cameras don't have these issues. The cable goes directly from the camera to the recorder. No interference, no dropped connections, no dependency on your WiFi network's mood.

Image Quality

Here's something the wireless camera marketing doesn't emphasise: to maintain a stable WiFi connection, these cameras heavily compress the video. That 4K wireless camera? It's probably delivering footage that looks more like 1080p after compression.

PoE cameras on gigabit ethernet can deliver genuine 4K footage with minimal compression. When you need to zoom in on a face or number plate, that extra detail matters.

Battery Cameras: The Convenience Tax

Wire-free battery cameras seem appealing: no drilling, no cables, stick them anywhere. But consider:

• Batteries need recharging every few weeks to months (depending on activity)
• To preserve battery, they only record when triggered—missing the lead-up to events
• Cold weather drastically reduces battery life (relevant in a Sussex winter)
• You'll eventually forget to charge one, and that'll be the day something happens

I've lost count of customers who've shown us Ring footage where the camera "missed" an incident because it was slow to wake up, or the battery had died.

When Wireless Makes Sense

I'm not completely anti-wireless. It's the right choice sometimes:

• Renters who can't drill holes or run cables
• Temporary situations – monitoring a building project, a short-term rental
• Genuinely inaccessible locations where running a cable would cost more than the camera's worth
• Supplementing a wired system – adding a quick view of a shed that's far from the house

When Wired is the Clear Choice

• Permanent home installation – if you own the property, wired is almost always better
• Business premises – reliability is non-negotiable
• Anywhere you need 24/7 recording – not just motion-triggered clips
• Where evidence quality matters – insurance claims, police reports

What About Installation Disruption?

The main argument for wireless is "easier installation." And yes, running cables takes more work. But we do it cleanly—through lofts, cavity walls, trunking where necessary. Most installations, you can't see a single cable.

For a typical 4-camera CCTV installation, we're done in half a day. You get a system that'll work reliably for 5-10 years versus one that'll probably frustrate you within 18 months.

Cost Comparison

Wireless systems often seem cheaper upfront, but factor in:

• Subscription fees (Ring Protect, Arlo Secure, etc.) – £80-100/year adds up
• Battery replacements and the hassle of recharging
• Likely replacement when you get fed up with the limitations

A proper wired system costs more initially but has no ongoing fees and lasts much longer.

Our Recommendation

If you're a homeowner wanting reliable, long-term security coverage: go wired. The technology is mature, the footage quality is better, and it just works.

If you're renting, need something temporary, or have a specific location where cabling is genuinely impossible, wireless can fill that gap—just go in with realistic expectations.

There is now a third consideration: the Matter standard finally covers cameras. We explain what that changes in Matter cameras explained.