Shokall Property
Home & Property
4 min read

Smoke and Carbon Monoxide Alarms: Where Rental Safety Often Fails Between Tenancies

Smoke and carbon monoxide alarms are simple pieces of equipment with important legal and safety responsibilities behind them. Find out what landlords need to provide, when alarms should be checked and why changeovers deserve particular attention.

Smoke and Carbon Monoxide Alarms: Where Rental Safety Often Fails Between Tenancies featured image

Friday, 11 September 2026. A smoke alarm can sit quietly on a ceiling for years without attracting attention.

That is exactly why it can be overlooked.

Landlords may spend considerable time preparing a property between tenancies—painting walls, arranging cleaning, repairing furniture and replacing worn flooring—while one of the most important safety checks in the property takes seconds.

Does the alarm actually work?

In England, alarm requirements are not simply good practice. They form part of a landlord's legal responsibilities, and the beginning of a tenancy is an especially important point in the process.

Smoke alarms need to be where people actually live

The current rules require relevant landlords to ensure there is at least one smoke alarm on every storey containing a room used as living accommodation.

Carbon monoxide requirements operate differently. A carbon monoxide alarm must be provided in rooms used as living accommodation where there is a fixed combustion appliance, with gas cookers excluded from that particular requirement.

The distinction matters because smoke and carbon monoxide alarms respond to different risks.

Installing one type does not replace the need for the other where the regulations require it.

The first day of the tenancy matters

An alarm being attached to the ceiling is not enough if it does not work.

Landlords are required to ensure prescribed smoke and carbon monoxide alarms are in proper working order on the day a new tenancy begins.

That makes the check-in process an obvious opportunity to test and record them.

A strong inventory or check-in report can record the location of the alarms and their condition at the beginning of occupation. This creates useful evidence for the landlord and gives the tenant clarity about what is installed.

It also prevents the dangerous assumption that because an alarm was working during the previous tenancy, it must still be working now.

What happens after the tenant moves in?

Tenants should report an alarm that appears faulty.

Once a landlord is informed that a required smoke or carbon monoxide alarm is not working and it is found to be faulty, the landlord is responsible for repairing or replacing it as soon as reasonably practicable. Government guidance also advises tenants to test alarms regularly during the tenancy.

This creates a sensible division of everyday responsibility.

The landlord provides and maintains the required safety equipment.

The tenant lives in the property and is therefore often the first person able to notice that something has stopped working.

A maintenance reporting system needs to make it easy for that information to reach the person who can act on it.

HMOs can require considerably more

A shared house should not be assessed as though it were automatically identical to a standard single-household rental.

HMOs can be subject to additional fire-safety measures, particularly depending on the size, layout, licensing status and local authority requirements. Government guidance specifically notes additional fire precautions for large HMOs.

That may involve a more sophisticated approach to detection, escape routes and fire protection than simply attaching domestic alarms to ceilings.

Landlords operating HMOs should therefore understand the requirements applying to the actual property rather than relying on a generic checklist intended for an ordinary flat.

The alarm is only one part of the fire-safety picture

Fire safety does not begin and end with detection.

Escape routes need to remain usable. Supplied furniture must meet relevant fire-safety requirements. Gas and electrical systems need to be properly maintained. Different requirements can apply to purpose-built blocks and properties converted into flats.

That is why safety works best as a system.

A working alarm warns somebody about danger.

A safe escape route helps them respond to that warning.

Proper maintenance reduces the likelihood of the danger developing in the first place.

Why should landlords record something so simple?

Because “I remember checking it” is weak property management.

A dated check-in record showing that alarms were tested is better. A maintenance report showing when a faulty alarm was reported and replaced is better again.

Across a portfolio, small records create accountability.

Smoke and carbon monoxide alarms are inexpensive compared with most property maintenance.

Their importance has nothing to do with their price.

*DISCLAIMER- THIS PHOTO HAS BEEN TAKEN FROM PINTEREST (SUNTEW2 ONECITY)*