Mayor of London and GLA elections:
You will need to bring a photo ID to vote at a polling station in the GLA and Mayoral elections on 2 May.
Home safety services
We give practical help and advice on ways to prevent accidents in the home.
Gas safety and carbon monoxide poisoning
About carbon monoxide
Carbon monoxide is a toxic gas and can kill without warning within a matter of hours. You can't see, taste or smell it. It occurs when a faulty gas boiler or gas fire does not burn correctly.
Risks
You could be at risk if you sleep in a room where there is an open-flued appliance, like a gas fire or gas fire/back boiler unit. You are particularly at risk if you leave such appliances on throughout the night.
Symptoms
- drowsiness
- headaches
- chest pains
- flu-like symptoms
What to look out for
- stains, soot or discolouration around the flue, radiants on the gas fire, appliance casing or decorations
- orange or yellow flames
- unusual amounts of condensation
- pilot lights which often blow out
What you can do
When you are told your gas appliances are due for a service, make sure you make an appointment and keep it.
If you notice any of the signs mentioned above:
- switch off the appliance
- open doors and windows
- telephone your district office during working hours
- out of hours call 020 8726 6000
- you can also call the National Gas Emergency Service at any time on 0800 111 999.
Documents
Carbon monoxide - the silent killer (PDF, 173 KB)
NEW Help improve this site by giving feedback Show Hide
Feedback
Send feedback directly to the content team using our website feedback form
You can also join our user research group to receive invites to activities and surveys to help shape future improvements to the site.