Fifteen fire engines and around 100 firefighters from Hillingdon, Heathrow, Feltham, Hayes and Heston Fire Stations tackled a fire at a factory on Rigby Lane in Hayes on Monday (1 August) evening.
A single-storey waste recycling shed and 400 tonnes of mixed waste recycling was destroyed by the blaze.
The fire was under control by 3:15am.
There were no reports of any injuries.
The fire is believed to have been accidental and caused by the failure of a damaged lithium-ion battery which ignited shredded waste material.
Station Commander Dean Wilkinson, who was at the scene, said: “Firefighters worked swiftly to bring the fire under control.
“Two of the Brigade’s 32-metre turntable ladders were used at the scene as water towers, to get water on to the building externally.
“Around 10 gas cylinders were removed as a precaution as some cylinders can explode when exposed to heat.”
