Four fire engines and around 25 firefighters were called to a fire at a house on Berverley Road, New Malden.
A small part of the first floor was damaged by fire. Two people left the property before the Brigade arrived.
The Brigade was called at 1610 and the fire was under control at 1705. Fire crews from New Malden, Wimbledon, Surbiton, and Mitcham fire stations attended the scene.