Carbon Monoxide Safety in London
Carbon monoxide poisoning is a serious risk in any London property with gas, oil or solid fuel appliances. CO is odourless, colourless and can cause death at high concentrations. Around 60 people die from accidental CO poisoning each year in the UK — and London, with its millions of gas-heated properties and dense housing stock, has a disproportionate share of incidents.
London’s flat conversions, HMOs and older properties with shared boiler systems or poorly maintained appliances are particularly vulnerable. Since October 2022, CO alarms are legally required in all London rental properties with any gas, oil or solid fuel appliances.
CO Alarm Installation Across London
We install CO alarms throughout London — in the same room as each gas appliance (boiler room, kitchen, living room if gas fire). We fit battery, mains-wired and combination smoke/CO alarms from trusted brands including Kidde, FireAngel, Nest Protect and Aico.
What to Do If Your CO Alarm Sounds in London
- Leave the property immediately — take everyone with you, including pets
- Don’t touch electrical switches — don’t turn lights on or off
- Get fresh air — stay outside or go to a neighbour’s property
- Call 999 if anyone feels unwell — headache, dizziness, nausea
- Call 0800 111 999 — National Gas Emergency Service
- Call us on 0800 999 1075 — once the property is declared safe, we’ll carry out a full safety inspection
Gas Appliance Safety Inspections London
If your CO alarm has triggered, or if you’re concerned about any gas appliance, we carry out a full gas safety inspection using electronic combustion analysis equipment — testing each appliance for CO output, checking flue integrity, gas pressure and all safety controls.
📞 0800 999 1075 — CO Alarm Installation & Gas Safety Inspections Across London