Four fire engines and around 25 firefighters were called to a fire at a restaurant on Hanger Lane in Ealing.
Part of the ground floor was damaged by the fire and the ducting from the ground floor to the roof was destroyed. There were no reports of any injuries.
The Brigade was called at 1509 and the fire was under control by 1656. Fire crews from Wembley, Park Royal and Acton fire stations attended.
The cause of the fire is under investigation.