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Carbon monoxide alarms in Northern Ireland

A legal requirement for landlords in Northern Ireland, with no fixed renewal date. It applies to rented properties with a gas supply (natural gas or LPG), or with oil-fired heating, or with a solid-fuel appliance (a stove or open fire), and must be done by a suitably competent person.

At a glance

How often
No fixed renewal date
Who does it
A suitably competent person
Applies to
Rented properties with a gas supply (natural gas or LPG), or with oil-fired heating, or with a solid-fuel appliance (a stove or open fire)
Legal status
Legal requirement

Common questions

Is there a renewal date for carbon monoxide alarms?

No. Carbon monoxide alarms have no fixed renewal date in Northern Ireland. It is a duty that applies whenever the rules below are triggered, for example at the start of a tenancy.

Who is responsible for carbon monoxide alarms?

The landlord is responsible for arranging them. The work itself must be done by a suitably competent person.

Do they apply to every rented property in Northern Ireland?

No. They apply to rented properties with a gas supply (natural gas or LPG), or with oil-fired heating, or with a solid-fuel appliance (a stove or open fire).

What does the law say?

Smoke, Heat and Carbon Monoxide Alarms for Private Tenancies Regulations (NI) 2024 (SR 2024/123), reg 3: a CO alarm (BS EN 50292) in every room or circulation space with a fixed combustion appliance (gas, oil or solid-fuel boiler, fire or stove, but not a gas cooker) or a flue. New tenancies from 1 September 2024; existing tenancies from 1 December 2024.

Written from the same rule Beamwise uses to track this for properties in Northern Ireland, last updated . Rules change, so check the legislation named above or take professional advice before relying on it.

Every landlord rule in Northern Ireland

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