Smart home & IoT · Category + house type

Will multi-room audio work properly in a three-storey house?

The answer

Speakers that have to find each other, not just the internet. In a three-storey house, the building itself is usually the deciding factor: concrete or thick timber floors between levels.

Sonos Arc scores 82/100 in the Compatibility Index.

What this building does to Wi-Fi

  • Concrete or thick timber floors between levels
  • Router usually on the ground floor
  • Loft conversion at the far end of the signal

What to do about it

  • One box per floor, near the stairwell
  • Middle floor first — it covers up and down
  • Test the loft room last; that is where the plan usually fails

What multi-room audio need from the network

  • One Wi-Fi name for the whole house
  • No client isolation
  • Multicast/IGMP snooping left in its default sensible state

Mesh considerations

  • Wired backhaul between mesh boxes helps enormously.
  • A speaker that is fixed in place can cling to a distant mesh box — power-cycle it once the mesh is settled.

The kit we cover on this shelf

  • Sonos Arc — scores 82/100 in the Compatibility Index
  • Sonos Era 100 — scores 83/100 in the Compatibility Index
  • Sonos Beam (Gen 2) — scores 81/100 in the Compatibility Index
  • Sonos Move 2 — scores 80/100 in the Compatibility Index

If the free fixes don't do it

Only worth reading after you've tried everything above. Nobody pays to be listed and we don't rank kit by commission.

  • Deco X50 (3 pack)The most forgiving mesh for a normal brick house. One Wi-Fi name, and it takes a network cable if you can run one. (around £180–£220)
    See prices
  • eero 6+ (3 pack)Easiest set-up of the lot and very stable, but you manage it entirely through the phone app. (around £170–£230)
    See prices

How we keep this honest

Checked September 2026. Evidence used on this page: Manufacturer documentation, Verified WiFiXpert case data.

  • The maker says so in their own published documentation.
  • We have seen this ourselves in cases people brought to us.

We re-check this page when: published wi-fi requirements change.