Eight fire engines and around 60 firefighters were called to a wildfire near Glebe Road in Rainham.
One hectare of shrubland was alight. There were no reports of any injuries. Road closures were in place in the local whilst firefighters worked to extinguish the fire.
Incident Commander Neil Guyett said: "Initial crews adopted aggressive firefighting tactics to ensure the fire did not spread to nearby homes. They did this by dampening the perimeter of the field to create a natural fire break and their hard work and actions prevented damage to any properties.
"We also deployed a wildfire response vehicle, which has off-road capability, that allows us to tackle a fire more efficiently. The vehicle has misting lance technology which allows firefighters to pump water and drive, enabling them to tackle grass fires more quickly and safely. A drone was also deployed to provide a greater situational awareness of the fire.
"This incident highlights the real challenges London faces in that so many green spaces lie close to properties. After such a dry spring and the threat of further heatwaves this summer, it's vital landowners and local authorities manage their land and create fire breaks, such as ploughing or cutting grass, to help protect communities from wildfires."
Control Officers took the first of 21 calls at 1623 and mobilised firefighters from Wennington, Hornchurch, Ilford and surrounding fire stations to the scene. Essex County Fire & Rescue Service also attended. The fire was brought under control by 1824.