Carbon monoxide alarm
Required in rooms with a fixed combustion appliance.
2 min read · Updated 2 August 2026
Overview
Landlords in England must fit a carbon monoxide alarm in any room used as living accommodation that contains a fixed combustion appliance, excluding gas cookers, and must repair or replace alarms reported as faulty. The requirement applies regardless of the fuel type — solid fuel, oil or gas.
Legal requirements
- Alarms must be working on the first day of the tenancy.
- Faulty alarms must be repaired or replaced as soon as reasonably practicable once reported.
Practical guidance
- Photograph each alarm on move-in day and record it in the inventory.
- Test alarms at every inspection and log the result.
This wiki entry is general information for UK landlords and letting agents, not legal advice. Rules differ across England, Wales, Scotland and Northern Ireland — check your local requirements or take advice before acting.