Four fire engines and around 25 firefighters tackled a house fire on Marlow Crescent in Twickenham.
Part of the first floor of a semi-detached house was damaged by fire. There were no reports of any injuries.
The fire is believed to have been accidental and caused by an iron left unattended.
A London Fire Brigade spokesperson said: “It’s really important that you always check irons and other appliances are turned off and unplugged when not in use, unless they’re designed to be left on, like your fridge or freezer.
“Keep clutter to a minimum on your work surfaces especially near irons, toasters and hobs as they can accidentally switch them on or catch fire.”
The Brigade's Control Officers were called at 1105 and sent crews from Heston and Richmond fire stations to the scene. The fire was under control by 1150.