If you're a landlord in the UK, by law you must:
- install one working smoke alarm on each storey of your rental property
- install one working carbon monoxide alarm in high-risk rooms, such as those that contain a solid fuel burning appliance
- test each alarm at the beginning of the tenancy.
Responsibility for fitting the alarms rests with landlords. Alarms should be fitted according to the manufacturer's instructions.
Failure to comply with these regulations could lead to sanctions and up to a £5,000 civil penalty.
For more information about smoke and carbon monoxide alarms, please read the explanatory booklet for landlords on GOV.UK.