Four fire engines and around 25 firefighters were called to a fire at a pub with flats above on Kingsland Road in Dalston.
Part of an external sign was damaged by fire. There were no reports of any injuries.
The Brigade was called at 1330 and the fire was under control by 1417. Fire crews from Islington, Stoke Newington and Shoreditch fire stations attended the incident.
The cause of the fire is believed to be an electrical fault.