Many homeowners assume smart meters only struggle in very rural areas.
However, engineers often find signal problems in two very different types of property:
• older stone houses
• modern highly insulated new builds
Although these homes are very different, they can both weaken the wireless signals used by smart meters.
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Why old stone houses block signals
Many older homes in the UK were built with extremely thick stone walls.
These walls can be several feet thick and were designed long before wireless communication existed.
Stone can absorb and weaken radio signals, making it difficult for the communications hub on a smart meter to connect to the network.
This can result in:
• weak signal strength
• intermittent connections
• smart meters failing to send readings
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Why new builds can also block signals
Modern homes are designed to be extremely energy efficient.
To reduce heat loss, builders often use materials that can unintentionally block wireless signals.
These can include:
• foil-backed insulation
• metal structural frames
• reinforced concrete
• energy-efficient glazing
While these materials improve insulation, they can also make it harder for smart meter signals to travel in and out of the building.
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Where meters are often installed
Signal problems can become worse when meters are located in areas such as:
• plant rooms
• utility cupboards
• garages
• metal meter cabinets
These locations can further weaken the communication signal used by the smart meter.
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Why communication signal matters
Smart meters send readings through the national smart meter communications system operated by Data Communications Company.
If the signal cannot reach the communications hub, the meter may not be able to send readings to the energy supplier.
When this happens, customers may receive estimated bills instead of automatic readings.
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The surprising reality
Although smart meters are designed to work in most homes, the construction of the building can sometimes make communication more difficult.
Both traditional stone houses and modern energy-efficient homes can present challenges for wireless signals.