Four fire engines and around 25 firefighters were called to a fire at a derelict industrial unit on Hampden Road in Kingston Upon Thames.
Crews tackled a small fire on the first floor of the unit. There were no reports of any injuries.
The Brigade was called at 0521 and the fire was under control by 0640. Fire crews from New Malden, Surbiton, Kingston and Twickenham fire stations attended the scene.