Wi-Fi answers

Flat Wi-Fi interference

How do I get good Wi-Fi in a flat or apartment?

The short answer

In a flat or apartment the building is the limit, not the broadband. Dozens of neighbouring networks on the same channels Congestion, not distance, is usually the problem here. We do not quote a single "walls cut the signal by X%" figure, because the loss depends entirely on what the wall is made of.

Plan your mesh

Tell us the walls and floors and we mark where the boxes should go.

Flat or apartment — the things that decide your coverage
FactorWhy it matters
Dozens of neighbouring networks on the same channelsCongestion, not distance, is usually the problem here
Concrete floors and ceilingsUse the fast band where you can — fewer neighbours reach it
Entry systems and shared risersOne well-placed router usually beats a mesh pack in a flat

The short answer

  • Congestion, not distance, is usually the problem here

What gets in the way here

  • Dozens of neighbouring networks on the same channels
  • Concrete floors and ceilings
  • Entry systems and shared risers

What actually works

  • Congestion, not distance, is usually the problem here
  • Use the fast band where you can — fewer neighbours reach it
  • One well-placed router usually beats a mesh pack in a flat

Before you buy

  • Run the free home score first
  • A cable between two boxes beats a bigger mesh pack

People also ask

  • How many mesh boxes do I need in a flat or apartment?
  • Do Wi-Fi extenders work in a flat or apartment?
  • Where should the router go in a flat or apartment?

If you do end up spending money

Only after the free fixes. Nobody pays to appear here, and no shop link changes anything we say.

  • Mesh sized to the building, not the broadband speed
  • Wired backhaul or an outdoor access point

Where this comes from

Related pages

Written by The WiFiXpert engineering teamUK Wi-Fi engineers, giq.ai Ltd.

Edited by WiFiXpert editorial desk.

Last reviewed 9 September 2026. Reviewed every 6 months, or sooner when a manufacturer or provider changes something.

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