Can unswept chimneys cause carbon monoxide risk?

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Can unswept chimneys cause carbon monoxide risk? A chimney sweep explains.

Apex Chimney Sweeps London explains that all fires – solid fuel, burning wood or smokeless coal or gas – emit carbon monoxide  and therefore present a danger to you if you don’t get your chimney swept on a regular basis. Sweeping chimneys clears them from obstruction and allows these dangerous gases to go up the chimney and out of harm’s way. 

Video Transcription

(Slightly edited for better reading)

Lee Pearce: If the chimney is not swept regularly, the risk is that the chimney becomes obstructed.  Obstructed with soot or debris, it could be obstructed with a birds nest; it could be obstructed with a squirrels nest, a wasps nest or a bees nest – there are several things that could cause a problem with a chimney.

A chimney that’s not swept regularly, with a build up inside it, is going to be more of a danger than a chimney that’s clear and clean; because if the carbon monoxide gases (which are caused by any fire that burns – be it solid fuel, burning wood or smokeless coal or gas – all fires makes carbon monoxide. If the fumes can’t escape, the risk of the fumes coming back is a danger to you. 


Use A Professional

You are strongly advised to use a professional chimney sweep.


certificate of chimney sweeping
Certificate of Chimney Sweeping


Further Chimney Information

Please contact Apex Chimney Sweeps London if you’d like to discuss chimney and fire safety. Apex can advise you on all aspects of chimney maintenance, chimney cleaning and safety. Just call 020 8856 4341 and we’ll be delighted to discuss your requirements, which could be anything from chimney sweeping to fireplace sizing to Chimney CCTV surveys or dealing with chimney pots, cowls and birdguards. 

Apex Chimney Sweeps London were established  back in 1984 and we coverall London postcodes and North Kent.

More related info:

Chimney Sweeping
Complete Chimney Safety Inspections
Chimney Smoke Testing