Four fire engines and around 25 firefighters tackled a fire at a warehouse on Westmead Road in Sutton.
Part of a single-storey disused warehouse was damaged by fire. There were no reports of any injuries.
Crews worked hard in hot conditions to control the blaze before it could spread to any adjacent properties
Firefighters carried out a full sweep of the building using thermal imaging cameras to ensure there were no remaining hotspots.
The Brigade was called at 1455 and the fire was under control by 1643. Fire crews from Sutton, Croydon and Wallington fire stations attended the scene.
The cause of the fire is under investigation.