Four fire engines and around 25 firefighters tackled a fire at a terraced house on Hampton Hill in Twickenham.
Part of a loft conversion was damaged by the fire. There were no reports of any injuries.
Control Officers took the first of three calls at 0859 and mobilised crews from Twickenham, Feltham and Hayes fire stations to the scene. The incident was over for firefighters at 1005.
The fire is believed to have been accidental and was caused by an electrical fault within a hand dryer motor.