Five sheds were damaged by fire on Jerningham Avenue in Barkingside, early this morning.
A butane cylinder in one of the sheds was cooled before being removed from the shed, as some cylinders can explode when exposed to heat.
Most of the five sheds were damaged by fire.
Four fire engines and 21 firefighters and officers from Hainault, Ilford and Woodford fire stations were at the scene.
The Brigade was called at 0425 and the fire was under control at 0508. The cause of the fire is under investigation.