Four fire engines and 21 firefighters and officers were called to a fire at a shop in Blackfen Road in Sidcup.
A fascia board was destroyed by fire. Part of the shop was also damaged by fire.
The Brigade was called at 1351 and the fire was under control at 1453. Fire crews from Sidcup, Eltham and Plumstead fire stations attended the scene.
The cause of the fire is under investigation.