Six fire engines and around 40 firefighters tackled a fire at a house on Masterman Road in East Ham.
A small part of the ground floor of a mid-terraced house was damaged by fire and the lean-to at the rear of the property was destroyed. Part of the conservatory of an adjacent property was also damaged by the blaze. Three people left the building before the Brigade arrived. There were no reports of any injuries.
The fire is believed to have been accidental and caused by an electrical fault in a freezer.
A London Fire Brigade spokesperson said: “It’s important to make sure you’re aware of white goods safety and to check your appliances.
“If your white goods start making a strange noise, don’t ignore it. If you think there’s a problem always unplug it and contact the manufacturer or a qualified repair technician.
“Most fires where white goods are the source of ignition are not down to anything you have done – so always make sure you register your appliances as you’ll be informed if any issues are identified with the product you’ve bought.
“You should also always keep your white goods in a safe place out of the way as if a fire does break out you will need clear escape routes."
The Brigade was called at 1612 and the fire was under control by 1646. Fire crews from East Ham, Plaistow, Barking and Stratford fire stations attended the scene.