Four fire engines and around 25 firefighters were called to a shed fire on Tilney Road in Dagenham.
Three timber sheds were destroyed by fire. The blaze also damaged the fascia of a neighbouring property.
The Brigade was called at 2002 and the fire was under control by 2045. Fire crews from Dagenham and Barking fire stations attended the scene.
The cause of the fire is believed to be accidental involving the electrical supply.