In short
Good WiFi in a large home needs the signal spread across several access points, ideally cabled to a switch and managed as one network with roaming. Wireless mesh systems are an alternative when cabling is impossible, with somewhat lower performance. Standalone repeaters usually perform worse.
Why WiFi fails in large homes
- The ISP router sits in a corner, next to where the fibre enters.
- Load-bearing walls, floor slabs and underfloor heating weaken the signal.
- A single unit cannot cover several floors and the outdoors.
- Repeaters halve speed and create networks with different names.
- Many devices at once: cameras, TVs, smart-home devices.
Solutions from best to worst
| Solution | Performance | When to use it |
|---|---|---|
| Wired, managed access points | Best and most stable. | New builds, renovations or where cable or conduit exists. |
| Mesh with wired backhaul | Very good. | When some nodes can be cabled. |
| Wireless mesh | Good, drops with each hop. | When cabling is impossible. |
| Standalone repeaters | Inconsistent. | Only as a stopgap. |
Good practice
- At least one access point per floor, plus one for the garden or pool if used.
- Ceiling or high-wall mounting, away from metal cabinets.
- A single network name so devices move between points without drop-outs.
- A separate network for guests and another for cameras and automation.
- Cable anything that does not move: TV, console, desktop computer.