Inventra Property

Landlords and letting agents

Smoke and carbon monoxide alarms: the rules for landlords at check-in

What the Smoke and Carbon Monoxide Alarm Regulations require of landlords in England, and how alarms are recorded at the check-in.

By Bulent Akay, Inventra Property · 25 October 2026

Since October 2022, the Smoke and Carbon Monoxide Alarm (Amendment) Regulations have set out what landlords of rented homes in England must provide. Failing to comply can lead to a fine, so it is worth making sure everything is in place before a tenancy begins.

What the rules require

Why it belongs in the check-in

Because alarms must be working on the first day of the tenancy, the check-in is the natural moment to show it. We test every smoke and carbon monoxide alarm at check-in and record where each one is, whether it sounded and a photograph of it, so the landlord has a dated record that the requirement was met.

During the tenancy

Tenants are generally expected to test alarms regularly and report any faults. A mid-term inspection is a good chance to check that alarms are still in place and working, and that none have been removed or covered up.

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