Four fire engines and 21 firefighters and officers were called to a fire at a block of flats in Brookfield Avenue, Walthamstow.
Part of a flat on the second floor of the building was damaged by fire.
The Brigade was called at 2034 and the fire was under control at 2129. Fire crews from Walthamstow, Leytonstone and Leyton fire stations attended the scene.
The cause of the fire is under investigation.