Six fire engines and around 40 firefighters tackled a fire at a fireworks shop on South Road in Southall.
A stack of cardboard, part of a flat roof and a small part of the external side of the building were damaged by fire. Three metres of wooden fencing was destroyed. There were no reports of any injuries.
Station Commander James Berry, who was at the scene, said: “The fire is believed to have spread due to stored cardboard at the rear of the shop. There were no fireworks involved in the blaze.
“Seven people left the building before firefighters arrived.
“South Road was closed for around 30 minutes whilst crews worked to make the scene safe, causing some temporary diversions.
“This incident serves as a reminder to only put rubbish and recycling out on collection days and never store rubbish, recycling or anything that can catch alight in corridors, stair wells or escape routes. Make sure to also keep any flammable substances stored safely and securely, not left in the open.”
The Brigade was called at 1914 and the fire was under control by 2007. Fire crews from Southall, Ealing, Hillingdon and Heston fire stations attended the scene.
The cause of the fire is under investigation by the Brigade and the Metropolitan Police Service.