A legal requirement for landlords in Northern Ireland. No fixed renewal date, and here is who can do it, which properties it covers and what the law says.
There is no fixed renewal date. It is a standing duty that applies whenever the rules below are triggered, for example at the start of a tenancy.
A suitably competent person.
Yes. It applies to every rented property in Northern Ireland.
Smoke, Heat and Carbon Monoxide Alarms for Private Tenancies Regulations (NI) 2024 (SR 2024/123): a smoke alarm in the main living room and in every hall and landing, and a heat alarm in every kitchen, interlinked, to BS 5839-6. Working at the start of each tenancy. New tenancies from 1 September 2024; existing tenancies from 1 December 2024. Licensed HMOs meet alarm duties through licence conditions and fire safety law instead.
Written from the same rule Beamwise uses to track this for properties in Northern Ireland, last updated 15 Sept 2026. Rules change, so check the legislation named above or take professional advice before relying on it.
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