Four fire engines and around 25 firefighters were called to sheds alight on Darell Road in Richmond.
Two garden sheds and two fence panels were destroyed by the fire. There were no reports of any injuries.
The Brigade was called at 0300 and the fire was under control by 0345. Fire crews from Richmond, Chiswick, Acton and Kingston fire stations were at the scene.
The cause of the fire has been recorded as undetermined.