Smart home & IoT · Category + house type

Will ev chargers work properly in a stone cottage or thick stone walls?

The answer

Outside, through a wall, and expected to work overnight. In a stone cottage or thick stone walls, the building itself is usually the deciding factor: very thick external and internal stone.

Ohme EV charger scores 60/100 in the Compatibility Index.

What this building does to Wi-Fi

  • Very thick external and internal stone
  • Deep window reveals and small openings
  • Often an outbuilding or annexe in the mix

What to do about it

  • Expect the fast band to stop at the first stone wall
  • Plan around doorways and stairwells — signal travels through openings, not stone
  • Wired links between boxes are close to essential here

What ev chargers need from the network

  • 2.4 GHz reaching an outside wall
  • No captive portal or sign-in page

Mesh considerations

  • A mesh box in the room nearest the charger, or an outdoor unit in the garage, is the usual fix.

The kit we cover on this shelf

  • Ohme EV charger — scores 60/100 in the Compatibility Index
  • myenergi zappi charger — scores 58/100 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.