Six fire engines and around 40 firefighters were called to a fire at a row of terraced houses on Southwood Drive in Surbiton.
The roofs of two properties were damaged by the fire. There were no reports of any injuries.
The Brigade was called at 1416 and the fire was under control by 1524. Fire crews from Surbiton, Wimbledon, Kingston and Mitcham fire stations were at the scene.
The fire is believed to be accidental but the cause is undetermined.