Four fire engines and around 25 firefighters were called to a fire at a house on Fernside Avenue in Mill Hill.
Part of the ground floor of a semi-detached house was damaged by the blaze. There were no reports of any injuries.
The Brigade's Fire Investigators believe the fire was caused by the unsafe disposal of a cigarette.
A London Fire Brigade spokesperson said: "Fires caused by smoking materials including cigarettes, roll-ups, cigars and pipes, result in more deaths than any other type of fire. Stub cigarettes out properly and always dispose of them carefully.
"Make sure smoking materials are cold before emptying ashtrays. Preferably wet stubs before throwing them into a bin.”
Firefighters' smoking safety tips
- It's safer to smoke outside, but make sure cigarettes are put right out and disposed of properly.
- Never smoke in bed, and avoid smoking on arm chairs and sofas – especially if you think you might fall asleep.
- Take extra care when you’re tired, taking prescription drugs or if you’ve been drinking alcohol.
- Use proper ashtrays, which can’t tip over and stub cigarettes out properly.
- Don't balance cigars or cigarettes on the edge of an ashtray, or anything else – they can tip and fall as they burn away and cause a fire.
- Don’t leave lit pipes or cigarettes unattended.
- Always empty ashtrays carefully. Make sure smoking materials are out, cold and preferably wet them before throwing into a bin – never use a wastepaper basket.
- Keep matches and lighters out of children’s reach, and buy child resistant lighters.
- Never smoke if you use healthcare equipment like medical oxygen or an air flow pressure relief mattress. If you use paraffin-based emollient creams, ask for non-flammable alternatives instead.
- Consider additional safety measures such as fire retardant bedding or nightwear.
The Brigade was called at 1535 and the fire was under control by 1632. Fire crews from Holloway, Stanmore and Hendon attended the scene. The cause of the fire is not known at this stage.
