How to Wire Your Home for WiFi

The reliable way to get fast WiFi in every room is simpler than most people think. One wireless access point in the ceiling of each main living space, each one wired back to a central point on its own cable. Do that and the whole house is covered, with no dead spots and nothing to reboot. The router you buy matters far less than the wiring behind it.

If you are building or renovating, this is the moment to get it right, while the walls are still open.

WiFi is a wiring job, not a gadget

Good WiFi is not one powerful box in the hall. In a house of any size that leaves the bedrooms, the garden and the far end of an extension weak or dead. The dependable approach is several small access points spread through the house, each fixed in a ceiling and each fed by its own network cable back to one central point.

The cable is the part that matters. An access point on a wire is fast and steady. An access point talking back over wireless, what the trade calls wireless backhaul, is the thing that drops and stutters. Wire every one of them and the system stays solid.

One access point per living space

This is the whole idea in a sentence: put an access point in each main living area, and wire it home.

The plan below is a real Formwave ground floor. Five living spaces, five access points: living room, kitchen and dining, sitting room, gym, and office. Each sits in the ceiling at the centre of its room, and the coverage circles overlap so you can walk the whole floor without ever losing signal. Every one runs back to the comms room on its own dedicated cabling. No wireless backhaul anywhere.

Count the main living spaces in your own home and you have your answer for how many access points you need. Bigger rooms, thick stone walls or multiple floors push the number up, but the principle holds: one per living space, wired home.

Treat it like a fourth utility

Think of your home network the way you think of water, power and heat. It is something the whole house draws on, it runs to every room, and you build it into the fabric of the building rather than bolting it on afterwards.

And unlike a kitchen tap, the demand only ever goes one way. Every year there are more devices, more streaming, more working from home, more of the house leaning on the network. Nobody has ever wanted less of it. So wire generously now. The cable is cheap while the walls are open and expensive once they are closed.

New build: wire it once, wire it properly

With the walls open, cabling is quick and cheap. Once they are closed, every change means lifting floors or chasing plaster. The aim is to never open the wall again.

A sound plan for most homes:

• A cable to the ceiling of every main living space, for the access points, as in the plan above.
• Two or three cables to every TV point. A TV is rarely just a TV. There is the screen, a box, a soundbar or amplifier, maybe a console, and they all run better wired.
• A couple of cables to each desk or home office, so computers, docks and printers are wired rather than fighting over the WiFi.
• At least one spare cable to every other room. It costs very little now and saves opening a wall later.
• Everything back to one central point. A ventilated cupboard or utility space, kept away from heat sources like the boiler or hot water cylinder, where the broadband comes in and it all connects.
• Empty conduit to a few key spots. The TV wall, the office, the loft. So future cable can be pulled without opening anything.

This is what installers mean by structured cabling, and it is the foundation the rest of the home sits on. Lighting, blinds, audio, security and door entry all run on it. It is the groundwork behind any whole-home design.

Retrofit: wire it during the works

A renovation is your chance to do exactly the same job. While floors are up, ceilings are down or rooms are being replastered, that is the moment to pull cable to each living space and back to a central point, just as you would in a new build. Lofts, suspended floors and existing ducting often let you reach the key spots without much mess. The principle does not change: an access point in each main living area, each one wired home. Plan the routes before the building work starts, so the cable goes in while access is easy and cheap.

A quick word on cable

Use Cat6A. It is rated for 10 gigabit and it is the standard we run to every point, so the home is ready for the fastest kit for years to come. Insist on solid copper cable and never the cheaper copper-clad aluminium. The cable in the wall is the one thing you cannot upgrade later without opening it up, so it is the place not to cut corners.

Quick answers

How many WiFi access points do I need?

One in the ceiling of each main living space. A typical floor needs four or five. Count your living areas and that is your starting number.

Why wire every access point?

A wired access point is fast and steady. The cable carries its full traffic back to the comms room with nothing in the way. It is the difference between WiFi that just works and WiFi you are forever nursing.

Who can wire my house for ethernet?

On a new build or a renovation, your electrician runs the cable to a plan. Specifying the layout, terminating it and setting up the access points is where an integrator earns its place. Get the plan right before anyone pulls cable.

Do I still need WiFi if the house is wired?

Yes. The wiring feeds the access points that create the WiFi. The cable carries the load, the access points cover the phones and tablets and everything that moves.

Plan it before the walls close

The cheapest time to get your home network right is before first fix. The most expensive is after handover. If you are building or renovating in Ireland and want it designed properly from the start, book a consultation and we will plan it with your architect and electrician before a single cable is pulled.

Explore the Network and WiFi range for the access points, switches and routers we build these systems on.