Additional information about the unplanned power cut in the E17 postcode area of Walthamstow
Incident number: INCD-407616-J
What happened?
Customers in Shernhall Street, Maynard Road and the surrounding areas of Walthamstow have been affected by an unplanned power cut following theft of equipment from an electricity substation causing a neutral fault on our electricity network. We were made aware of this third-party damage which meant we needed to turn the power off for safety reasons. Faults like this on our electricity network are uncommon and complex, but our engineers are working quickly and safely to repair the network and restore power.

What happened?
Customers in Shernhall Street, Maynard Road and the surrounding areas of Walthamstow have been affected by an unplanned power cut following theft of equipment from an electricity substation causing a neutral fault on our electricity network. We were made aware of this third-party damage which meant we needed to turn the power off for safety reasons. Faults like this on our electricity network are uncommon and complex, but our engineers are working quickly and safely to repair the network and restore power.
We're here to support you
We currently have extra engineers, electricians and members of our customer service team in your area. They will be available to support you and provide additional information.
We also have our customer support vehicles located outside 84 Barclay Road and opposite the Raglan Pub on Shernhall Street which can provide hot water, some hot food, WiFi, charging points and staff who can help you.
A food van to provide hot food and drinks is also parked outside 180 Shernhall Street at the junction of Maynard Road.

We're here to support you
We currently have extra engineers, electricians and members of our customer service team in your area. They will be available to support you and provide additional information.
We also have our customer support vehicles located outside 84 Barclay Road and opposite the Raglan Pub on Shernhall Street which can provide hot water, some hot food, WiFi, charging points and staff who can help you.
A food van to provide hot food and drinks is also parked outside 180 Shernhall Street at the junction of Maynard Road.
What happens next?
Our engineers are currently assessing and working to repair the affected electricity network. They will continue these repairs throughout the day. We understand the disruption this may cause and are working as quickly and safely to restore your supply. Neutral faults can result in voltage fluctuations, so our engineers need to access affected properties for safety checks, before restoring electricity.
What happens next?
Our engineers are currently assessing and working to repair the affected electricity network. They will continue these repairs throughout the day. We understand the disruption this may cause and are working as quickly and safely to restore your supply. Neutral faults can result in voltage fluctuations, so our engineers need to access affected properties for safety checks, before restoring electricity.
Help with electrical items
Once power has been restored to your property, our teams will begin reviewing any electrical items that may have been damaged.
The information will then be shared with our contractors to arrange repairs or replacements where possible. Our contractors will prioritise those items that enable heating and hot water in the first instance then cooking. After that, they will attend to any other affected items.
Help with electrical items
Once power has been restored to your property, our teams will begin reviewing any electrical items that may have been damaged.
The information will then be shared with our contractors to arrange repairs or replacements where possible. Our contractors will prioritise those items that enable heating and hot water in the first instance then cooking. After that, they will attend to any other affected items.
Page last updated: 15/05/2026 at 09:59